SELIGMAN MUNICIPAL SERIES TRUST
485BPOS, 1999-01-29
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                                                                FILE NO. 2-92569
                                                                        811-4250


                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

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                                    FORM N-1A
         REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933            |X|


                  PRE-EFFECTIVE AMENDMENT NO. __                            |_|

   
                  POST-EFFECTIVE AMENDMENT NO. 29                           |X|
    

         REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940    |X|

   
                  AMENDMENT NO. 31                                          |X|
    

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                         SELIGMAN MUNICIPAL SERIES TRUST
               (EXACT NAME OF REGISTRANT AS SPECIFIED IN CHARTER)

- --------------------------------------------------------------------------------
                    100 PARK AVENUE, NEW YORK, NEW YORK 10017
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)

- --------------------------------------------------------------------------------
                 REGISTRANT'S TELEPHONE NUMBER: 212-850-1864 OR
                             TOLL-FREE 800-221-2450

- --------------------------------------------------------------------------------
                            THOMAS G. ROSE, TREASURER
                                 100 PARK AVENUE
                            NEW YORK, NEW YORK 10017
                     (NAME AND ADDRESS OF AGENT FOR SERVICE)

- --------------------------------------------------------------------------------
         IT IS  PROPOSED  THAT THIS  FILING  WILL  BECOME  EFFECTIVE  (CHECK THE
APPROPRIATE BOX).

|_|   IMMEDIATELY UPON FILING PURSUANT TO PARAGRAPH (b) OF RULE 485

   
|X|   ON JANUARY 31, 1999 PURSUANT TO PARAGRAPH (b) OF RULE 485
    

|_|   60 DAYS AFTER FILING PURSUANT TO PARAGRAPH (a)(1) OF RULE 485

   
|_|   ON (DATE) PURSUANT TO PARAGRAPH (a)(1) OF RULE 485
    

|_|   75 DAYS AFTER FILING PURSUANT TO PARAGRAPH (a)(2) OF RULE 485

|_|   ON (DATE)  PURSUANT TO PARAGRAPH (a)(2) OF RULE 485.

IF APPROPRIATE, CHECK THE FOLLOWING BOX:

|_|   THIS  POST-EFFECTIVE  AMENDMENT  DESIGNATES  A NEW  EFFECTIVE  DATE FOR A
      PREVIOUSLY FILED POST-EFFECTIVE AMENDMENT.

<PAGE>


- --------------------------------------------------------------------------------

               SELIGMAN
- -----------------------
        MUNICIPAL FUNDS

SELIGMAN MUNICIPAL FUND                                    
           SERIES, INC.

     SELIGMAN MUNICIPAL
           SERIES TRUST                                      [GRAPHIC]

    SELIGMAN NEW JERSEY
   MUNICIPAL FUND, INC.

  SELIGMAN PENNSYLVANIA
  MUNICIPAL FUND SERIES



   
The Securities and Exchange                                 PROSPECTUS
Commission has neither                                   FEBRUARY 1, 1999
approved nor disapproved these 
Funds, and it has not                                        Seeking
determined the prospectus to   
be accurate or adequate. Any                                  Income
representation to the contrary 
is a criminal offense.                                      Exempt From
    
                                                             Regular
                                                        
An investment in these Funds or any                         Income Tax
other fund cannot provide a
complete investment program. The
suitability of an investment in a
Fund should be evaluated based on
the investment objective,
strategies and risks described
herein, considered in light of all
of the other investments in your
portfolio, as well as your risk
tolerance, financial goals, and
time horizons. We recommend that
you consult your financial advisor
to determine if one or more of
these Funds is suitable for you.


                                                               managed by
                                                                 [LOGO]
                                                          J. & W. SELIGMAN & CO.
                                                               INCORPORATED
                                                            ESTABLISHED 1864

MUNI-1 2/99


<PAGE>

Table of Contents

The Funds                              Shareholder Information                 
                                                                               
A discussion of the investment               Deciding Which Class of Shares    
strategies, risks, performance and             to Buy    44                    
expenses of the Funds.                                                         
                                             Pricing of Fund Shares    45      
      Overview of the Funds    1                                               
                                             Opening Your Account    46        
      National Fund    4                                                       
                                             How to Buy Additional Shares   46 
      California High-Yield Fund    6                                          
                                             How to Exchange Shares Between    
      California Quality Fund    8             the Seligman Mutual Funds    47 
                                                                               
      Colorado Fund    10                    How to Sell Shares    48          
                                                                               
      Florida Fund    12                     Important Policies That May Affect
                                               Your Account    49              
      Georgia Fund    14                                                       
                                             Dividends and Capital Gain        
      Louisiana Fund    16                     Distributions    50             
                                                                               
      Maryland Fund    18                    Taxes    50                       
                                                                               
      Massachusetts Fund    20         Financial Highlights    51              
                                                                               
      Michigan Fund    22              How to Contact Us    61                 
                                                                               
      Minnesota Fund    24             For More Information    back cover      
                                       
      Missouri Fund    26

      New Jersey Fund    28

      New York Fund    30

      North Carolina Fund    32

      Ohio Fund    34

      Oregon Fund    36

      Pennsylvania Fund    38

      South Carolina Fund    40

      Management of the Funds    42

      Year 2000    43




TIMES CHANGE ... VALUES ENDURE

<PAGE>

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The Funds

OVERVIEW OF THE FUNDS

This Prospectus contains information about four separate funds, which together
offer 19 investment options: Seligman Municipal Fund Series offers the following
13 series: 

National Fund                 Massachusetts Fund            New York Fund 
Colorado Fund                 Michigan Fund                 Ohio Fund
Georgia Fund                  Minnesota Fund                Oregon Fund
Louisiana Fund                Missouri Fund                 South Carolina Fund 
Maryland Fund 

Seligman Municipal Series Trust offers the following four series: 

California High-Yield Fund    Florida Fund 
California Quality Fund       North Carolina Fund

Seligman New Jersey Municipal Fund, Inc. (New Jersey Fund) 
Seligman Pennsylvania Municipal Fund Series (Pennsylvania Fund)  

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
Each Fund has its own objectives, strategies and risks. You should read the
discussion of a particular Fund, in addition to the information below, before
making an investment decision about that Fund.

The Seligman Municipal Funds seek to provide income exempt from regular federal
income taxes and, as applicable, regular state and local personal income taxes.

The Funds are managed for total return, which means, in addition to income
considerations, the Funds (except the Pennsylvania Fund) look to enhance
portfolio returns by pursuing opportunities for capital appreciation. The
Pennsylvania Fund does not pursue capital appreciation as one of its objectives.
At all times, safety of principal is a primary concern of all of the Funds.
However, there is no assurance that the Funds will meet their objectives. Each
Fund normally invests at least 80% of its net assets in municipal securities
that pay interest that is exempt from regular federal income taxes and (except
the National Fund) regular personal income taxes in its respective state. Income
may be subject to the federal alternative minimum tax and, where applicable,
state alternative minimum tax.

Municipal securities are issued by state and local governments, their agencies
and authorities, as well as territories and possessions of the United States,
and the District of Columbia. Municipal bonds are issued to obtain funds to
finance various public or private projects, to meet general expenses, and to
refinance outstanding debt.

The Funds use a top-down method of selecting securities to purchase. This means
the investment manager analyzes the current interest rate environment and trends
in the municipal market to formulate investment strategy before selecting
individual securities for each Fund. The investment manager determines the
appropriate cash positions, quality parameters, market sectors, and bond
duration and then uses in-depth credit analysis to evaluate individual
securities considered for purchase.

Portfolio holdings are continually monitored to identify securities which should
be sold as a result of a deterioration in credit quality. A Fund may also sell a
security when there is a better investment opportunity available in the market.

The Funds (except the California High-Yield Fund) will purchase only investment
grade municipal securities, defined as those issues rated in the four highest
rating categories by independent rating agencies at the time of purchase. The
Funds may also purchase non-rated securities if, based on credit analysis, the
investment manager believes that they are of comparable quality to investment
grade securities.


- --------------------------------------------------------------------------------
Alternative Minimum Tax (AMT):

A tax imposed on certain types of income to ensure that all taxpayers pay at
least a minimum amount of taxes.
- --------------------------------------------------------------------------------
    

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<PAGE>


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Under normal market conditions, the Funds will invest in longer maturity bonds
(typically, bonds with maturities in excess of ten years). However, a Fund may
shorten or lengthen maturities to achieve its objective.

As a defensive measure, a Fund may invest a considerable amount of its portfolio
in cash or in securities that are subject to regular federal income tax or, if
applicable, the regular income tax of its designated state. A Fund would take
such a defensive position only temporarily in seeking to minimize extreme
volatility caused by adverse market, economic or other conditions or in
anticipating significant withdrawals from the Fund. However, such a position is
inconsistent with the Funds' principal strategies and could prevent a Fund from
achieving its investment objective.
    

PRINCIPAL RISKS 

The value of your investment in a Fund will fluctuate with fluctuations in the
value of the Fund's investment portfolio. The principal factors that may affect
the value of a Fund's portfolio are changes in interest rates and the credit
worthiness of the Fund's portfolio holdings. 

   
Interest rate risk. Changes in market interest rates will affect the value of a
Fund's investment portfolio. In general, the market value of a municipal bond
moves in the opposite direction of interest rates: the market value decreases
when interest rates rise and increases when interest rates decline. A Fund's net
asset value per share moves in the same direction as the market value of the
municipal securities held in its portfolio. Therefore, if interest rates rise,
you should expect a Fund's net asset value per share to fall, and if interest
rates decline, the Fund's net asset value per share should rise. 
    

Additionally, longer maturity bonds (like those held by the Funds) are generally
more sensitive to changes in interest rates. Each Fund's strategy of investing
in longer maturity bonds could subject its portfolio holdings to a greater
degree of market price volatility.

Declining interest rates increase the risk that portfolio holdings which contain
call features could be redeemed by the issuer. Proceeds of called bonds may be
reinvested at lower yields, which could affect the level of income a Fund
generates.

Credit risk. A municipal bond issue could deteriorate in quality to the extent
that its rating is downgraded or its market value declines relative to
comparable municipal securities. Credit risk also includes the risk that an
issuer of a municipal bond would be unable to make interest and principal
payments. 

   
The investment manager seeks to minimize the credit risk inherent in municipal
securities by performing its own in-depth credit analysis on every municipal
security before purchase and by continuing to monitor all securities while they
remain in the portfolio. Each Fund may purchase municipal bonds that are insured
as to the payment of principal and interest. However, the Funds view insurance
as an enhancement of quality, not as a substitute for it. A Fund and will not
purchase a bond unless the investment manager approves the underlying credit.
The Funds are also subject to the following risks:

Concentration risk. Each Fund (except the National Fund) invests in municipal
securities issued by a single state and its municipalities. Specific events or
factors affecting a particular state may have an impact on the municipal
securities of that state without affecting the municipal market in general. The
Funds seek to minimize this risk by diversifying investments within the state.
In addition, each Fund is subject to certain investment restrictions limiting
the amount of its assets that can be invested in the securities of a single
issuer.

Market risk. At times, market conditions could result in a lack of liquidity.
The municipal market is an over-the-counter market, which means that the Funds
purchase and sell portfolio holdings through municipal bond dealers. A Fund's
ability to sell securities held in its portfolio is dependent on the willingness
and ability of market participants to provide bids that reflect current market
levels. Adverse market conditions could result in a lack of liquidity by
reducing the number of ready buyers. Lower-rated securities may be less liquid
than higher-rated securities.
    

An investment in any of the Funds is not a deposit in a bank and is not insured
or guaranteed by the Federal Deposit Insurance Corporation or any other
government agency.



                                       2
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<PAGE>


- --------------------------------------------------------------------------------

PAST PERFORMANCE

   
Each Fund offers two Classes of shares. The performance information presented
for each Fund provides some indication of the risks of investing in the Fund by
showing how the performance of Class A shares has varied year to year, as well
as how each Class's performance compares to the Lehman Brothers Municipal Bond
Index, a widely-used measure of municipal bond performance. Although each Fund's
fiscal year ends on September 30, the performance information is provided on a
calendar year basis to assist you in comparing the returns of the Funds with the
returns of other mutual funds. How a Fund has performed in the past, however, is
not necessarily an indication of how the Fund will perform in the future. Total
returns will vary between each Fund's Class A and Class D shares due to their
different fees and expenses. 
    

FEES AND EXPENSES 

The fee and expense table provided for each Fund summarizes the fees and
expenses that you may pay as a shareholder of a Fund. Each Class of shares has
its own sales charge schedule and is subject to different ongoing fees.
Shareholder fees are charged directly to you. Annual fund operating expenses are
deducted from a Fund's assets and are therefore paid indirectly by you and other
Fund shareholders.

Accompanying each Fund's fee and expense table is an example intended to help
you compare the expenses of investing in that Fund with the expenses of
investing in other mutual funds.

   
                    Discussions of each Fund begin on page 4.
    



                                       3
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<PAGE>


- --------------------------------------------------------------------------------

National Fund

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

The National Fund seeks to maximize income exempt from regular federal income
taxes to the extent consistent with preservation of capital and with
consideration given to opportunities for capital gain.

The National Fund uses the following strategies to pursue its objective:

The National Fund invests at least 80% of its net assets in municipal securities
of states, territories, and possessions of the United States, and the District
of Columbia, and their political subdivisions, agencies, and instrumentalities
that are rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The National Fund is subject to the following principal risks:

o  The Fund is subject to interest rate risk. When interest rates rise,
   municipal bond prices fall. Movements in interest rates may affect the Fund's
   yield, net asset value, and total return.

o  Generally, the longer the maturity (duration) of a bond, the more sensitive
   it is to movements in interest rates. Therefore, long-term bonds, while
   generally providing higher current income, may be subject to greater price
   volatility than bonds with shorter maturities.

o  The Fund is subject to credit risk. If the Fund holds securities that are
   downgraded or whose issuers become unable to pay interest or principal, the
   Fund's net asset value may decline. Revenue bonds held by the Fund may be
   downgraded or may default on payment if revenues from their underlying
   facilities decline.

   
o  If certain securities or market sectors represented in the Fund's portfolio
   do not perform as expected, the Fund's net asset value may decline.
    


                                       4
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<PAGE>

- --------------------------------------------------------------------------------

National Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989                9.82%
                            1990                5.82%
                            1991               11.47%
                            1992                7.88%
                            1993               14.10%
                            1994               -9.95%
                            1995               20.10%
                            1996                3.33%
                            1997               10.38%
                            1998                5.67%

   
Best calendar quarter return: 8.25% - quarter ended 3/31/95

Worst calendar quarter return: -8.20% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                     Class D
                                                                      Since
                                   One       Five          Ten      Inception
                                  Year       Years        Years       2/1/94
                                  ----       -----        -----       ------
Class A                           0.61%       4.41%       7.07%         --
Class D                           3.60         n/a         n/a        4.27%
Lehman Brothers 
 Municipal Bond Index             6.48        6.23        8.22        6.09(1)
    


The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance. 

(1) From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                    Class A       Class D
- ----------------                                    -------       -------
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) .........     4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ..........     none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees ................................      .50%           .50%
Distribution and/or
  Service (12b-1) Fees .........................      .09%          1.00%
Other Expenses .................................      .21%           .21%
                                                      ---            --- 
Total Annual Fund Operating Expenses ...........      .80%          1.71%
                                                      ===           ==== 

   
(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:

                    1 Year       3 Years      5 Years      10 Years
                    ------       -------      -------      --------
Class A              $553         $718          $898        $1,418
Class D               274          539           928         2,019

If you did not sell your shares at the end of each period, your expenses would
be:

                    1 Year       3 Years      5 Years      10 Years
                    ------       -------      -------      --------
Class A              $553          $718          $898        $1,418
Class D               174           539           928         2,019


                                       5
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<PAGE>

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California High-Yield Fund

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

The California High-Yield Fund seeks the maximum income exempt from regular
federal income taxes and from the personal income taxes of California consistent
with preservation of capital and with consideration given to capital gain.

The California High-Yield Fund uses the following strategies to pursue its
objective:

The California High-Yield Fund invests at least 80% of its net assets in
California municipal securities that are within any rating category, including
securities rated below investment grade or securities that are not rated.

In selecting securities to purchase, the investment manager may consider the
current market conditions, the availability of lower-rated securities, and
whether lower-rated securities offer yields high enough relative to yields on
investment grade securities to justify their higher risk.

The Fund generally invests in long-term municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The California High-Yield Fund is subject to the following principal risks:

o  The Fund is subject to interest rate risk. When interest rates rise,
   municipal bond prices fall. Movements in interest rates may affect the Fund's
   yield, net asset value, and total return.

o  Generally, the longer the maturity (duration) of a bond, the more sensitive
   it is to movements in interest rates. Therefore, long-term bonds, while
   generally providing higher current income, may be subject to greater price
   volatility than bonds with shorter maturities.

o  The Fund is subject to credit risk. If the Fund holds securities that are
   downgraded or whose issuers become unable to pay interest or principal, the
   Fund's net asset value may decline. Revenue bonds held by the Fund may be
   downgraded or may default on payment if revenues from their underlying
   facilities decline.

   
o  Lower-rated municipal bonds are subject to a greater degree of credit risk
   than higher-rated bonds. They generally involve greater price volatility and
   risk of loss of principal and income than higher-rated bonds.

o  If certain securities or market sectors represented in the Fund's portfolio
   do not perform as expected, the Fund's net asset value may decline.

o  Because the Fund invests primarily in the securities of California issuers,
   its performance may be affected by local, state, and regional factors. These
   may include state or local legislation or policy changes, economics, natural
   disasters, and the possibility of credit problems, such as the 1994
   bankruptcy of Orange County.
    


                                       6
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<PAGE>


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California High-Yield Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989                9.28%
                            1990                6.00%
                            1991               10.48%
                            1992                9.53%
                            1993                9.91%
                            1994               -2.79%
                            1995               14.55%
                            1996                5.52%
                            1997                8.72%
                            1998                 6.8%


   
Best calendar quarter return: 6.48% - quarter ended 3/31/95

Worst calendar quarter return: -2.30% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                  Class D
                                                                   Since
                                One        Five         Ten       Inception
                                Year       Years       Years       2/1/94
                                ----       -----       -----       ------
Class A                         1.16%       5.26%       7.13%         --
Class D                         4.21         n/a         n/a        5.22%
Lehman Brothers
 Municipal Bond Index           6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance.

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                          Class A      Class D
- ----------------                                          -------      -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ............      4.75%(1)        none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) .............       none(1)          1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees ...................................       .50%           .50%
Distribution and/or
  Service (12b-1) Fees ............................       .09%          1.00%
Other Expenses ....................................       .23%           .23%
                                                          ---           ---- 
Total Annual Fund Operating Expenses ..............       .82%          1.73%
                                                          ===           ==== 

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


<PAGE>


- --------------------------------------------------------------------------------

Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $555      $724       $908      $1,440
Class D           276       545        939       2,041

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $555      $724       $908      $1,440
Class D           176       545        939       2,041



                                       7
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------


California Quality Fund

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

The California Quality Fund seeks high income exempt from regular federal income
taxes and from the personal income taxes of California consistent with
preservation of capital and with consideration given to capital gain.

The California Quality Fund uses the following strategies to pursue its
objective:

The California Quality Fund invests at least 80% of its net assets in California
municipal securities that are within the three highest ratings of Moody's (Aaa,
Aa, or A) or S&P (AAA, AA, or A) on the date of purchase.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The California Quality Fund is subject to the following principal risks:

o  The Fund is subject to interest rate risk. When interest rates rise,
   municipal bond prices fall. Movements in interest rates may affect the Fund's
   yield, net asset value, and total return.

o  Generally, the longer the maturity (duration) of a bond, the more sensitive
   it is to movements in interest rates. Therefore, long-term bonds, while
   generally providing higher current income, may be subject to greater price
   volatility than bonds with shorter maturities.

o  The Fund is subject to credit risk. If the Fund holds securities that are
   downgraded or whose issuers become unable to pay interest or principal, the
   Fund's net asset value may decline. Revenue bonds held by the Fund may be
   downgraded or may default on payment if revenues from their underlying
   facilities decline.

   
o  If certain securities or market sectors represented in the Fund's portfolio
   do not perform as expected, the Fund's net asset value may decline.

o  Because the Fund invests primarily in the securities of California issuers,
   its performance may be affected by local, state, and regional factors. These
   may include state or local legislation or policy changes, economics, natural
   disasters, and the possibility of credit problems, such as the 1994
   bankruptcy of Orange County. 
    


                                       8
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

California Quality Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989               9.77%
                            1990               6.57%
                            1991              11.22%
                            1992               8.49%
                            1993               12.6%
                            1994              -8.30%
                            1995              19.79%
                            1996               3.91%
                            1997               8.80%
                            1998               6.26%


   
Best calendar quarter return: 8.97% - quarter ended 3/31/95

Worst calendar quarter return: -6.63% - quarter ended 3/31/94
    



- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                  Class D
                                                                   Since
                                  One       Five        Ten      Inception
                                 Year       Years       Years      2/1/94
                                 ----       -----       -----      ------
Class A                          1.23%       4.69%       7.16%        --
Class D                          4.33         n/a         n/a        4.54%
Lehman Brothers
 Municipal Bond Index            6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance. 
(1)  From 1/31/94.
- --------------------------------------------------------------------------------


FEES AND EXPENSES

Shareholder Fees                                           Class A      Class D
- ----------------                                           -------      -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- -------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .18%           .18%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .77%          1.68%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $550      $709       $883      $1,384
Class D           271       530        913       1,987

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $550      $709       $883      $1,384
Class D           171       530        913       1,987


                                       9
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Colorado Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Colorado Fund seeks to maximize income exempt from regular federal income
taxes and from Colorado personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.
    

The Colorado Fund uses the following strategies to pursue its objective:

The Colorado Fund invests at least 80% of its net assets in Colorado municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Colorado Fund is subject to the following principal risks:

o  The Fund is subject to interest rate risk. When interest rates rise,
   municipal bond prices fall. Movements in interest rates may affect the Fund's
   yield, net asset value, and total return.

o  Generally, the longer the maturity (duration) of a bond, the more sensitive
   it is to movements in interest rates. Therefore, long-term bonds, while
   generally providing higher current income, may be subject to greater price
   volatility than bonds with shorter maturities.

o  The Fund is subject to credit risk. If the Fund holds securities that are
   downgraded or whose issuers become unable to pay interest or principal, the
   Fund's net asset value may decline. Revenue bonds held by the Fund may be
   downgraded or may default on payment if revenues from their underlying
   facilities decline.

   
o  If certain securities or market sectors represented in the Fund's portfolio
   do not perform as expected, the Fund's net asset value may decline.

o  Because the Fund invests primarily in the securities of Colorado issuers, its
   performance may be affected by local, state, and regional factors. These may
   include state or local legislation or policy changes, economics, natural
   disasters, and the possibility of credit problems. Colorado's largest trading
   partner is Japan, and the State is sensitive to national and international
   business cycles. Turmoil in the world economy, especially in Asia, has the
   potential to dramatically affect Colorado's economy. 
    


                                       10
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Colorado Fund

Past Performance

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989              10.04%
                            1990               5.05%
                            1991               9.40%
                            1992               7.67%
                            1993              11.11%
                            1994              -5.13%
                            1995              13.96%
                            1996               3.39%
                            1997               7.52%
                            1998               5.80%
                                              

   
Best calendar quarter return: 6.34% - quarter ended 3/31/95

Worst calendar quarter return: -4.87% - quarter ended 3/31/94
    

- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                       Class D
                                                                        Since
                                      One        Five         Ten     Inception
                                     Year        Years       Years      2/1/94
                                     ----        -----       -----      ------
Class A                              0.83%       3.91%       6.24%        --
Class D                              3.83         n/a         n/a        3.71%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance.

(1)  From 1/31/94.
- --------------------------------------------------------------------------------


FEES AND EXPENSES

Shareholder Fees                                            Class A      Class D
- ----------------                                            -------      -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .10%          1.00%
Other Expenses ......................................        .30%           .30%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .90%          1.80%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:

   
                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $562      $748       $950      $1,530
Class D           283       566        975       2,116
    

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $562      $748       $950      $1,530
Class D           183       566        975       2,116


- --------------------------------------------------------------------------------
                                       11


<PAGE>


- --------------------------------------------------------------------------------

Florida Fund

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

   
The Florida Fund seeks high income exempt from regular federal income taxes
consistent with preservation of capital and with consideration given to capital
gain.
    

The Florida Fund uses the following strategies to pursue its objective:

The Florida Fund invests at least 80% of its net assets in Florida municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Florida Fund is subject to the following principal risks:

o  The Fund is subject to interest rate risk. When interest rates rise,
   municipal bond prices fall. Movements in interest rates may affect the Fund's
   yield, net asset value, and total return.

o  Generally, the longer the maturity (duration) of a bond, the more sensitive
   it is to movements in interest rates. Therefore, long-term bonds, while
   generally providing higher current income, may be subject to greater price
   volatility than bonds with shorter maturities.

o  The Fund is subject to credit risk. If the Fund holds securities that are
   downgraded or whose issuers become unable to pay interest or principal, the
   Fund's net asset value may decline. Revenue bonds held by the Fund may be
   downgraded or may default on payment if revenues from their underlying
   facilities decline.

   
o  If certain securities or market sectors represented in the Fund's portfolio
   do not perform as expected, the Fund's net asset value may decline.

o  Because the Fund invests primarily in the securities of Florida issuers, its
   performance may be affected by local, state, and regional factors. These may
   include state or local legislation or policy changes, economics, natural
   disasters, and the possibility of credit problems. The lack of an income tax
   in Florida exposes total tax collections to more volatility than would
   otherwise be the case and, in the event of an economic downturn, could affect
   the State's ability to pay principal and interest in a timely manner.
   Florida's economy may be affected by foreign trade, crop failures, and severe
   weather conditions and is sensitive to trends in the tourism and construction
   industries. 
    


                                       12
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Florida Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989               11.35%
                            1990                6.46%
                            1991               10.62%
                            1992                9.07%
                            1993               13.52%
                            1994               -5.52%
                            1995               16.67%
                            1996                2.76%
                            1997                9.33%
                            1998                5.67%

   
Best calendar quarter return: 7.49% - quarter ended 6/30/89

Worst calendar quarter return: -5.99% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                     Class D
                                                                      Since
                                      One       Five        Ten      Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              0.69%       4.51%       7.31%         --
Class D                              3.85         n/a         n/a        4.59%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance.

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A      Class D
- ----------------                                           -------      -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .23%          1.00%
Other Expenses ......................................        .27%           .27%
                                                            ----           ----
Total Annual Fund Operating Expenses ................       1.00%          1.77%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:

   
                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $572      $778     $1,001      $1,641
Class D           280       557        959       2,084
    

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $572      $778     $1,001      $1,641
Class D           180       557        959       2,084


                                       13
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Georgia Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Georgia Fund seeks to maximize income exempt from regular federal income
taxes and from Georgia personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.
    

The Georgia Fund uses the following strategies to pursue its objective:

The Georgia Fund invests at least 80% of its net assets in Georgia municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Georgia Fund is subject to the following principal risks:

o  The Fund is subject to interest rate risk. When interest rates rise,
   municipal bond prices fall. Movements in interest rates may affect the Fund's
   yield, net asset value, and total return.

o  Generally, the longer the maturity (duration) of a bond, the more sensitive
   it is to movements in interest rates. Therefore, long-term bonds, while
   generally providing higher current income, may be subject to greater price
   volatility than bonds with shorter maturities.

o  The Fund is subject to credit risk. If the Fund holds securities that are
   downgraded or whose issuers become unable to pay interest or principal, the
   Fund's net asset value may decline. Revenue bonds held by the Fund may be
   downgraded or may default on payment if revenues from their underlying
   facilities decline.

   
o  If certain securities or market sectors represented in the Fund's portfolio
   do not perform as expected, the Fund's net asset value may decline.

o  Because the Fund invests primarily in the securities of Georgia issuers, its
   performance may be affected by local, state, and regional factors. These may
   include state or local policy changes, economics, natural disasters, and the
   possibility of credit problems. Georgia's economy will be affected by trends
   in the services, wholesale and retail trade, manufacturing, and
   transportation industries, as these industries, along with government,
   comprise the largest sources of employment within the State.
    


                                       14
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Georgia Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989               9.87%
                            1990               7.01%
                            1991              10.97%
                            1992               9.00%
                            1993              12.21%
                            1994              -7.64%
                            1995              19.16%
                            1996               3.86%
                            1997               9.02%
                            1998               5.94%
                                              
   
Best calendar quarter return: 7.71% - quarter ended 3/31/95

Worst calendar quarter return: -6.83% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98
   
                                                                      Class D
                                                                       Since
                                      One       Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              0.90%       4.70%       7.21%         --
Class D                              3.99         n/a         n/a        4.67%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance.

(1)  From 1/31/94.
- --------------------------------------------------------------------------------


FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%
Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .30%           .30%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .89%          1.80%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


<PAGE>


- --------------------------------------------------------------------------------

Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $562      $745       $945      $1,519
Class D           283       566       $975       2,116

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $562      $745       $945      $1,519
Class D           183       566        975       2,116


                                       15
- --------------------------------------------------------------------------------


<PAGE>


- --------------------------------------------------------------------------------

Louisiana Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Louisiana Fund seeks to maximize income exempt from regular federal income
taxes and from Louisiana personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.
    

The Louisiana Fund uses the following strategies to pursue its objective:

The Louisiana Fund invests at least 80% of its net assets in Louisiana municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Louisiana Fund is subject to the following principal risks:

o  The Fund is subject to interest rate risk. When interest rates rise,
   municipal bond prices fall. Movements in interest rates may affect the Fund's
   yield, net asset value, and total return.

o  Generally, the longer the maturity (duration) of a bond, the more sensitive
   it is to movements in interest rates. Therefore, long-term bonds, while
   generally providing higher current income, may be subject to greater price
   volatility than bonds with shorter maturities.

o  The Fund is subject to credit risk. If the Fund holds securities that are
   downgraded or whose issuers become unable to pay interest or principal, the
   Fund's net asset value may decline. Revenue bonds held by the Fund may be
   downgraded or may default on payment if revenues from their underlying
   facilities decline.

   
o  If certain securities or market sectors represented in the Fund's portfolio
   do not perform as expected, the Fund's net asset value may decline.

o  Because the Fund invests primarily in the securities of Louisiana issuers,
   its performance may be affected by local, state, and regional factors. These
   may include state or local legislation or policy changes, economics, natural
   disasters, and the possibility of credit problems. Louisiana's economy is
   affected by trends in the oil and gas, tourism, and gaming industries within
   the State. 
    



                                       16
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Louisiana Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989              10.14%
                            1990               6.86%
                            1991              11.38%
                            1992               7.83%
                            1993              11.45%
                            1994              -5.89%
                            1995              17.10%
                            1996               3.49%
                            1997               8.45%
                            1998               5.93%

   
Best calendar quarter return: 6.57% - quarter ended 3/31/95

Worst calendar quarter return: -5.38% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98
   
                                                                      Class D
                                                                       Since
                                     One         Five         Ten    Inception
                                     Year        Years       Years      2/1/94
                                     ----        -----       -----      ------
Class A                              0.87%       4.54%       6.99%         --
Class D                              3.86         n/a         n/a        4.43%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance.

(1)  From 1/31/94.
- --------------------------------------------------------------------------------


FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .10%          1.00%
Other Expenses ......................................        .28%           .28%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .88%          1.78%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:

   
                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $561      $742       $939      $1,508
Class D           281       560        964       2,095
    

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $561      $742       $939      $1,508
Class D           181       560        964       2,095


                                       17
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------
 
Maryland Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Maryland Fund seeks to maximize income exempt from regular federal income
taxes and from Maryland personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.
    

The Maryland Fund uses the following strategies to pursue its objective:

The Maryland Fund invests at least 80% of its net assets in Maryland municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Maryland Fund is subject to the following principal risks:

o  The Fund is subject to interest rate risk. When interest rates rise,
   municipal bond prices fall. Movements in interest rates may affect the Fund's
   yield, net asset value, and total return.

o  Generally, the longer the maturity (duration) of a bond, the more sensitive
   it is to movements in interest rates. Therefore, long-term bonds, while
   generally providing higher current income, may be subject to greater price
   volatility than bonds with shorter maturities.

o  The Fund is subject to credit risk. If the Fund holds securities that are
   downgraded or whose issuers become unable to pay interest or principal, the
   Fund's net asset value may decline. Revenue bonds held by the Fund may be
   downgraded or may default on payment if revenues from their underlying
   facilities decline.

   
o  If certain securities or market sectors represented in the Fund's portfolio
   do not perform as expected, the Fund's net asset value may decline.

o  Because the Fund invests primarily in the securities of Maryland issuers, its
   performance may be affected by local, state, and regional factors. These may
   include state or local legislation or policy changes, economics, natural
   disasters, and the possibility of credit problems. Because the Fund favors
   investing in revenue bonds, its performance may also be affected by economic
   developments impacting a specific facility or type of facility. The
   performance of general obligation bonds of the State of Maryland may be
   affected by efforts to limit or reduce state or local taxes. 
    


                                       18
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Maryland Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989              10.49%
                            1990               6.15%
                            1991              10.47%
                            1992               8.24%
                            1993              11.93%
                            1994              -5.48%
                            1995              16.84%
                            1996               3.66%
                            1997               8.09%
                            1998               5.85% 
                                               
   
Best calendar quarter return: 6.96% - quarter ended 3/31/95

Worst calendar quarter return: -5.29% - quarter ended 3/31/94
    

- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98
   
                                                                      Class D
                                                                       Since
                                      One       Five         Ten     Inception
                                      Year      Years       Years      2/1/94
                                      ----      -----       -----      ------
Class A                              0.80%       4.52%       6.95%         --
Class D                              3.89         n/a         n/a        4.42%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance.

(1)  From 1/31/94.
- --------------------------------------------------------------------------------


FEES AND EXPENSES

Shareholder Fees                                            Class A      Class D
- ----------------                                            -------      -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .30%           .30%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .89%          1.80%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $562      $745       $945      $1,519
Class D           283       566        975       2,116

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $562      $745       $945      $1,519
Class D           183       566        975       2,116


                                       19
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Massachusetts Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Massachusetts Fund seeks to maximize income exempt from regular federal
income taxes and from Massachusetts personal income taxes to the extent
consistent with preservation of capital and with consideration given to
opportunities for capital gain.
    

The Massachusetts Fund uses the following strategies to pursue its objective:

The Massachusetts Fund invests at least 80% of its net assets in Massachusetts
municipal securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Massachusetts Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.


o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

   
o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of Massachusetts
     issuers, its performance may be affected by local, state, and regional
     factors. These may include state or local legislation or policy changes,
     economics, natural disasters, and the possibility of credit problems.
     Massachusetts and certain of its cities, towns, counties, and other
     political subdivisions have at certain times in the past experienced
     serious financial difficulties which have adversely affected their credit
     standing. The recurrence of these financial difficulties could adversely
     affect the market value and marketability of, or result in default payments
     on, outstanding obligations issued by Massachusetts or its public
     authorities or municipalities.
    


                                       20
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Massachusetts Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results. 


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989               8.67%
                            1990               5.42%
                            1991              12.97%
                            1992               9.08%
                            1993              11.52%
                            1994              -4.43%
                            1995              15.20%
                            1996               4.14%
                            1997               8.68%
                            1998               6.55% 

   
Best calendar quarter return: 6.16% - quarter ended 3/31/95

Worst calendar quarter return: -4.69% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              1.49%       4.81%       7.13%         --
Class D                              4.59         n/a         n/a        4.69%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------


FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .21%           .21%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .80%          1.71%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $553      $718       $898      $1,418
Class D           274       539        928       2,019

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $553      $718       $898      $1,418
Class D           174       539        928       2,019


                                       21
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Michigan Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Michigan Fund seeks to maximize income exempt from regular federal income
taxes and from Michigan personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain
    

The Michigan Fund uses the following strategies to pursue its objective:

The Michigan Fund invests at least 80% of its net assets in Michigan municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Michigan Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

   
o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of Michigan issuers,
     its performance may be affected by local, state, and regional factors.
     These may include state or local legislation or policy changes, economics,
     natural disasters, and the possibility of credit problems. The principal
     sectors of Michigan's economy are manufacturing of durable goods (including
     automobiles and components and office equipment), tourism, and agriculture.
     The cyclical nature of these industries can adversely affect the revenue
     stream of the State and its political subdivisions because it may adversely
     impact tax sources, particularly sales taxes, income taxes and single
     business taxes.
    


                                       22
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Michigan Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989              10.71%
                            1990               5.85%
                            1991              12.01%
                            1992               9.31%
                            1993              11.48%
                            1994              -4.84%
                            1995              15.78%
                            1996               3.74%
                            1997               8.73%
                            1998               6.12% 
                                              
   
Best calendar quarter return: 6.57% - quarter ended 3/31/95

Worst calendar quarter return: -4.63% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              1.09%       4.66%       7.23%         --
Class D                              4.06         n/a         n/a        4.51%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .20%           .20%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .79%          1.70%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    



Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $552      $715       $898      $1,406
Class D           273       536        923       2,009

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $552      $715       $893      $1,406
Class D           173       536        923       2,009


                                       23
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Minnesota Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Minnesota Fund seeks to maximize income exempt from regular federal income
taxes and from regular Minnesota personal income taxes to the extent consistent
with preservation of capital and with consideration given to opportunities for
capital gain.
    

The Minnesota Fund uses the following strategies to pursue its objective:

The Minnesota Fund invests at least 80% of its net assets in Minnesota municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective. 

PRINCIPAL RISKS

The Minnesota Fund is subject to the following principal risks

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

   
o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of Minnesota issuers,
     its performance may be affected by local, state, and regional factors.
     These may include state or local legislation or policy changes, economics,
     natural disasters, and the possibility of credit problems. Pursuant to
     Minnesota legislation enacted in 1995, dividends that would otherwise be
     exempt from Minnesota personal income tax in the case of individuals,
     estates, and trusts, could become subject to the Minnesota personal income
     tax if it were judicially determined that exempting such dividends would
     discriminate against interstate commerce.
    


                                       24
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Minnesota Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989               9.89%
                            1990               6.52%
                            1991               7.53%
                            1992               7.67%
                            1993              13.49%
                            1994              -2.54%
                            1995              11.41%
                            1996               3.39%
                            1997               7.02%
                            1998               6.43% 
                                              

   
Best calendar quarter return: 6.01% - quarter ended 6/30/89

Worst calendar quarter return: -3.23% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              1.18%       3.79%       6.45%         --
Class D                              4.26         n/a         n/a        3.89%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .22%           .22%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .81%          1.72%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    



Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $554      $721       $903      $1,429
Class D           275       542        933       2,030

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $554      $721       $903      $1,429
Class D           175       542        933       2,030


                                       25
- --------------------------------------------------------------------------------


<PAGE>


- --------------------------------------------------------------------------------

Missouri Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Missouri Fund seeks to maximize income exempt from regular federal income
taxes and from Missouri personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.
    

The Missouri Fund uses the following strategies to pursue its objective

The Missouri Fund invests at least 80% of its net assets in Missouri municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Missouri Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

   
o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of Missouri issuers,
     its performance may be affected by local, state, and regional factors.
     These may include state or local legislation or policy changes, economics,
     natural disasters, and the possibility of credit problems. The national
     economic recession of the early 1980s had a disproportionately adverse
     impact on Missouri's economy, and its unemployment levels. A return to a
     pattern of high unemployment could adversely affect the Missouri debt
     obligations acquired by the Fund. Defense related business plays an
     important role in Missouri's economy. Negative trends in this industry or
     relocations of major employers could have a negative impact on the economy
     of the State and particularly on the economy of the St. Louis metropolitan
     area.
    


                                       26
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Missouri Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989               9.44%
                            1990               6.93%
                            1991              11.37%
                            1992               7.25%
                            1993              11.40%
                            1994              -6.32%
                            1995              16.95%
                            1996               3.71%
                            1997               8.08%
                            1998               5.77%
                                              

   
Best calendar quarter return: 7.31% - quarter ended 3/31/95

Worst calendar quarter return: -6.11% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              0.76%       4.34%       6.78%         --
Class D                              3.83         n/a         n/a        4.20%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .10%          1.00%
Other Expenses ......................................        .29%           .29%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .89%          1.79%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    



Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $562      $745       $945      $1,519
Class D           282       563        970       2,105

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $562      $745       $945      $1,519
Class D           182       563        970       2,105


                                       27
- --------------------------------------------------------------------------------


<PAGE>


- --------------------------------------------------------------------------------

New Jersey Fund

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

The New Jersey Fund seeks to maximize income exempt from regular federal income
tax and New Jersey gross income tax consistent with preservation of capital and
with consideration given to opportunities for capital gain.

The New Jersey Fund uses the following strategies to pursue its objective:

The New Jersey Fund invests at least 80% of its net assets in New Jersey
municipal securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective

PRINCIPAL RISKS

The New Jersey Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

   
o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of New Jersey issuers,
     its performance may be affected by local, state, and regional factors.
     These may include state or local legislation or policy changes, economics,
     natural disasters, and the possibility of credit problems. New Jersey's
     economic base is diversified, consisting of a variety of manufacturing,
     construction, and service industries, supplemented by rural areas with
     selective commercial agriculture. New Jersey's economy will be affected by
     trends in these sectors.
    


                                       28
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

New Jersey Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989              10.56%
                            1990               6.78%
                            1991              11.04%
                            1992               8.99%
                            1993              12.37%
                            1994              -6.15%
                            1995              15.57%
                            1996               3.40%
                            1997               8.93%
                            1998               6.00%

   
Best calendar quarter return: 6.78% - quarter ended 3/31/95

Worst calendar quarter return: -5.63% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              0.96%       4.29%       7.07%         --
Class D                              4.03         n/a         n/a        4.52%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .30%          1.00%
Other Expenses ......................................        .30%           .30%
                                                            ----           ----
Total Annual Fund Operating Expenses ................       1.02%          1.80%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $574      $784     $1,011      $1,664
Class D           283       566        975       2,116

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $574      $784     $1,011      $1,664
Class D           183       566        975       2,116


                                       29
- --------------------------------------------------------------------------------


<PAGE>


- --------------------------------------------------------------------------------

New York Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The New York Fund seeks to maximize income exempt from regular federal income
taxes and from New York personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain
    

The New York Fund uses the following strategies to pursue its objective:

The New York Fund invests at least 80% of its net assets in New York municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The New York Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline

   
o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of New York issuers,
     its performance may be affected by local, state, and regional factors.
     These may include state or local legislation or policy changes, economics,
     natural disasters, and the possibility of credit problems. New York City
     and certain localities outside New York City have experienced financial
     problems. These problems may affect the fiscal health of the State.
    


                                       30
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

New York Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989               9.39%
                            1990               4.18%
                            1991              13.53%
                            1992               9.31%
                            1993              13.26%
                            1994              -7.93%
                            1995              19.31%
                            1996               3.83%
                            1997              10.04%
                            1998               6.86%
                                              

   
Best calendar quarter return: 8.13% - quarter ended 3/31/95

Worst calendar quarter return: -6.61% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              1.73%       5.03%       7.42%         --
Class D                              4.90         n/a         n/a        4.93%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .22%           .22%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .81%          1.72%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $554      $721       $903      $1,429
Class D           275       542        933       2,030

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $554      $721       $903      $1,429
Class D           175       542        933       2,030


                                       31
- --------------------------------------------------------------------------------


<PAGE>


- --------------------------------------------------------------------------------

North Carolina Fund

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

   
The North Carolina Fund seeks high income exempt from regular federal income
taxes and North Carolina personal income taxes consistent with preservation of
capital and with consideration given to capital gain.
    

The North Carolina Fund uses the following strategies to pursue its objective:

The North Carolina Fund invests at least 80% of its net assets in North Carolina
municipal securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

 In abnormal market conditions, the Fund may temporarily invest more than
20% of its assets in taxable investment-grade fixed-income securities. Under
these circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The North Carolina Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

   
o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of North Carolina
     issuers, its performance may be affected by local, state, and regional
     factors. These may include state or local legislation or policy changes,
     economics, natural disasters, and the possibility of credit problems. North
     Carolina's total expenditures for each fiscal period covered by the budget
     must not exceed total receipts during the period and the surplus in the
     State Treasury at the beginning of the period. During the State's 1990-1991
     fiscal year, it began facing a substantial budget shortfall resulting from
     the failure of revenues received by the State to meet projected levels.
     While the State was successful in dealing with the problem, pressure on
     state revenues may be an ongoing problem.
    


                                       32
- --------------------------------------------------------------------------------
<PAGE>


- --------------------------------------------------------------------------------


North Carolina Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.


 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1990*              2.80%
                            1991              10.63%
                            1992               8.15%
                            1993              12.98%
                            1994              -7.35%
                            1995              19.56%
                            1996               2.71%
                            1997               8.75%
                            1998               5.81%


   
Best calendar quarter return: 8.72% - quarter ended 3/31/95

Worst calendar quarter return: -6.73% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              0.85%       4.53%       6.80%         --
Class D                              4.14         n/a         n/a        4.57%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.24(1)     6.09(2)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 8/31/90.

(2)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .23%          1.00%
Other Expenses ......................................        .32%           .32%
                                                            ----           ----
Total Annual Fund Operating Expenses ................       1.05%          1.82%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $577      $793     $1,027      $1,697
Class D           285       573        985       2,137

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $577      $793     $1,027      $1,697
Class D           185       573        985       2,137


                                       33
- --------------------------------------------------------------------------------


<PAGE>


- --------------------------------------------------------------------------------

Ohio Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Ohio Fund seeks to maximize income exempt from regular federal income taxes
and from Ohio personal income taxes to the extent consistent with preservation
of capital and with consideration given to opportunities for capital gain.
    

The Ohio Fund uses the following strategies to pursue its objective:

The Ohio Fund invests at least 80% of its net assets in Ohio municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Ohio Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

   
o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of Ohio issuers, its
     performance may be affected by local, state, and regional factors. These
     may include state or local legislation or policy changes, economics,
     natural disasters, and the possibility of credit problems. Ohio's economy
     relies in part on durable goods manufacturing largely concentrated in motor
     vehicles and equipment, steel, rubber products and household appliances. As
     a result, general economic activity, as in many other industrially
     developed states, tends to be more cyclical than in other states and in the
     nation as a whole.
    



                                       34
- --------------------------------------------------------------------------------
<PAGE>


- --------------------------------------------------------------------------------

Ohio Fund

PAST PERFORMANCE 

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]

   
                          Class A Annual Total Returns
                                 Calendar Years

                            1989               9.94%
                            1990               6.58%
                            1991              11.31%
                            1992               8.43%
                            1993              11.64%
                            1994              -4.91%
                            1995              15.23%
                            1996               3.77%
                            1997               8.39%
                            1998               5.89%


Best calendar quarter return: 6.47% - quarter ended 3/31/95

Worst calendar quarter return: -4.89% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              0.85%       4.44%       6.97%         --
Class D                              3.94         n/a         n/a        4.41%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .19%           .19%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .78%          1.69%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $551      $712       $888      $1,395
Class D           272       533        918       1,998

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $551      $712       $888      $1,395
Class D           172       533        918       1,998


                                       35
- --------------------------------------------------------------------------------


<PAGE>

- --------------------------------------------------------------------------------


Oregon Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The Oregon Fund seeks to maximize income exempt from regular federal income
taxes and from Oregon personal income taxes to the extent consistent with
preservation of capital and with consideration given to opportunities for
capital gain.
    

The Oregon Fund uses the following strategies to pursue its objective:

The Oregon Fund invests at least 80% of its net assets in Oregon municipal
securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

Principal Risks

The Oregon Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

   
o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of Oregon issuers, its
     performance may be affected by local, state, and regional factors. These
     may include state or local legislation or policy changes, economics,
     natural disasters, and the possibility of credit problems. Oregon's economy
     has been affected by the high technology manufacturing, forest products,
     and agriculture industries, which have all been slowed by declining exports
     to Asia.
    



                                       36
- --------------------------------------------------------------------------------
<PAGE>


- --------------------------------------------------------------------------------

Oregon Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989              10.44%
                            1990               6.50%
                            1991              10.82%
                            1992               7.78%
                            1993              10.90%
                            1994              -4.56%
                            1995              14.55%
                            1996               3.81%
                            1997               9.05%
                            1998               6.09%


   
Best calendar quarter return: 6.49% - quarter ended 6/30/89

Worst calendar quarter return: -4.48% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              1.09%       4.57%       6.89%         --
Class D                              4.13         n/a         n/a        4.53%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .29%           .29%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .88%          1.79%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $561      $742       $939      $1,508
Class D           282       563        970       2,105

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $561      $742       $939      $1,508
Class D           182       563        970       2,105


                                       37
- --------------------------------------------------------------------------------
<PAGE>


- --------------------------------------------------------------------------------

Pennsylvania Fund

INVESTMENT OBJECTIVE/PRINCIPAL STRATEGIES

The Pennsylvania Fund seeks high income exempt from regular federal income tax
and Pennsylvania income taxes consistent with preservation of capital.

The Pennsylvania Fund uses the following strategies to pursue its objective:

The Pennsylvania Fund invests at least 80% of its net assets in Pennsylvania
municipal securities rated investment grade when purchased. The Fund will
ordinarily hold securities with maturities in excess of one year.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than
20% of its assets in taxable investment-grade fixed-income securities. Under
these circumstances, the Fund may not achieve its investment objective.

PRINCIPAL RISKS

The Pennsylvania Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of Pennsylvania
     issuers, its performance may be affected by local, state, and regional
     factors. These may include state or local legislation or policy changes,
     economics, natural disasters, and the possibility of credit problems. From
     time to time, Pennsylvania and various of its political subdivisions
     (including particularly the City of Philadelphia and the City of Scranton)
     have encountered financial difficulty due to slowdowns in the pace of
     economic activity and to other factors.




                                       38
- --------------------------------------------------------------------------------
<PAGE>


- --------------------------------------------------------------------------------

Pennsylvania Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.

 [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989              10.24%
                            1990               5.35%
                            1991              11.29%
                            1992               9.32%
                            1993              12.91%
                            1994              -7.03%
                            1995              18.01%
                            1996               3.44%
                            1997               8.70%
                            1998               6.14%


   
Best calendar quarter return: 7.59% - quarter ended 3/31/95

Worst calendar quarter return: -6.40% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              1.10%       4.53%       7.12%         --
Class D                              4.32         n/a         n/a        4.49%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .22%          1.00%
Other Expenses ......................................        .47%           .47%
                                                            ----           ----
Total Annual Fund Operating Expenses ................       1.19%          1.97%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $591      $835      $1,098      $1,850
Class D           300       618       1,062       2,296

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $591      $835      $1,098      $1,850
Class D           200       618       1,062       2,296


                                       39
- --------------------------------------------------------------------------------


<PAGE>


- --------------------------------------------------------------------------------

South Carolina Fund

INVESTMENT OBJECTIVES/PRINCIPAL STRATEGIES

   
The South Carolina Fund seeks to maximize income exempt from regular federal
income taxes and from South Carolina personal income taxes to the extent
consistent with preservation of capital and with consideration given to
opportunities for capital gain.
    

The South Carolina Fund uses the following strategies to pursue its objective:

The South Carolina Fund invests at least 80% of its net assets in South Carolina
municipal securities rated investment grade when purchased.

The Fund generally invests in long-term quality municipal bonds. The Fund favors
investing in revenue bonds, which pay interest and principal from revenues
derived from a particular facility or class of facilities. Revenue bonds
generally offer a higher yield than general obligation bonds, the payment on
which is secured by the general taxing power of the issuer.

In abnormal market conditions, the Fund may temporarily invest more than 20% of
its assets in taxable investment-grade fixed-income securities. Under these
circumstances, the Fund may not achieve its investment objective.

Principal Risks

The South Carolina Fund is subject to the following principal risks:

o    The Fund is subject to interest rate risk. When interest rates rise,
     municipal bond prices fall. Movements in interest rates may affect the
     Fund's yield, net asset value, and total return.

o    Generally, the longer the maturity (duration) of a bond, the more sensitive
     it is to movements in interest rates. Therefore, long-term bonds, while
     generally providing higher current income, may be subject to greater price
     volatility than bonds with shorter maturities.

o    The Fund is subject to credit risk. If the Fund holds securities that are
     downgraded or whose issuers become unable to pay interest or principal, the
     Fund's net asset value may decline. Revenue bonds held by the Fund may be
     downgraded or may default on payment if revenues from their underlying
     facilities decline.

o    If certain securities or market sectors represented in the Fund's portfolio
     do not perform as expected, the Fund's net asset value may decline.

o    Because the Fund invests primarily in the securities of South Carolina
     issuers, its performance may be affected by local, state, and regional
     factors. These may include state or local legislation or policy changes,
     economics, natural disasters, and the possibility of credit problems. While
     South Carolina has not defaulted on its bonded debt since 1879, the State
     did experience certain budgeting difficulties over several recent years
     through June 30, 1993. Such difficulties have not to date impacted the
     State's ability to pay its indebtedness but did result in S&P lowering its
     rating on South Carolina general obligation bonds in 1993. The rating was
     restored to AAA in 1996.


                                       40
- --------------------------------------------------------------------------------
<PAGE>


- --------------------------------------------------------------------------------

South Carolina Fund

PAST PERFORMANCE

The Class A annual total returns presented in the bar chart do not reflect the
effect of any sales charges. If these charges were included, the returns would
be less. The average annual total returns presented in the table do reflect the
effect of the applicable sales charges. Both the bar chart and table assume that
all dividends and capital gain distributions were reinvested. Past performance
does not indicate future results.

  [THE FOLLOWING TABLE WAS REPRESENTED BY A BAR CHART IN THE PRINTED MATERIAL.]


                          Class A Annual Total Returns
                                 Calendar Years

                            1989              10.61%
                            1990               6.01%
                            1991              11.52%
                            1992               8.69%
                            1993              11.71%
                            1994              -6.70%
                            1995              17.65%
                            1996               3.93%
                            1997               8.72%
                            1998               5.73%


   
Best calendar quarter return: 7.23% - quarter ended 3/31/95

Worst calendar quarter return: -6.18% - quarter ended 3/31/94
    


- --------------------------------------------------------------------------------
                          Average Annual Total Returns
                             Periods Ended 12/31/98

   
                                                                      Class D
                                                                       Since
                                     One        Five         Ten     Inception
                                     Year       Years       Years      2/1/94
                                     ----       -----       -----      ------
Class A                              0.70%       4.54%       7.06%         --
Class D                              3.78         n/a         n/a        4.46%
Lehman Brothers
 Municipal Bond Index                6.48        6.23        8.22        6.09(1)
    

The Lehman Brothers Municipal Bond Index is an unmanaged index that does not
reflect any fees or sales charges, and does not reflect state-specific bond
market performance

(1)  From 1/31/94.
- --------------------------------------------------------------------------------

FEES AND EXPENSES

Shareholder Fees                                           Class A       Class D
- ----------------                                           -------       -------
   
Maximum Sales Charge (Load) on
  Purchases (as a % of offering price) ..............       4.75%(1)       none
Maximum Deferred Sales
  Charge (Load) (CDSC) on
  Redemptions (as a % of original
  purchase price or current
  net asset value, whichever is less) ...............       none(1)           1%

Annual Fund Operating
Expenses for Fiscal 1998
- ------------------------
(as a percentage of average net assets)

Management Fees .....................................        .50%           .50%
Distribution and/or
  Service (12b-1) Fees ..............................        .09%          1.00%
Other Expenses ......................................        .21%           .21%
                                                            ----           ----
Total Annual Fund Operating Expenses ................        .80%          1.71%
                                                            ====           ====

(1)  If you buy Class A shares for $1,000,000 or more you will not pay an
     initial sales charge, but your shares will be subject to a 1% CDSC if sold
     within 18 months.
    


Example

This example assumes (1) you invest $10,000 in the Fund for each period and then
sell all of your shares at the end of that period, (2) your investment has a 5%
return each year, and (3) the Fund's operating expenses remain the same.
Although your actual expenses may be higher or lower, based on these assumptions
your expenses would be:


                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $553      $718        $898      $1,418
Class D           274       539         928       2,019

If you did not sell your shares at the end of each period, your expenses would
be:

                1 Year    3 Years    5 Years   10 Years
                ------    -------    -------   --------
Class A          $553      $718        $898      $1,418
Class D           174       539        928        2,019


                                       41
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

MANAGEMENT OF THE FUNDS

A Board of Directors or Board of Trustees (as applicable) provides broad
supervision over the affairs of each Fund. 

Each Fund's manager is J. & W. Seligman & Co. Incorporated (Seligman), 100 Park
Avenue, New York, New York 10017. Seligman manages the investment of each Fund's
assets, including making purchases and sales of portfolio securities consistent
with each Fund's investment objective and strategies, and administers each
Fund's business and other affairs. 

   
Established in 1864, Seligman currently serves as manager to 18 US registered
investment companies, which offer more than 50 investment portfolios with
approximately $21.5 billion in assets as of December 31, 1998. Seligman also
provides investment management or advice to institutional or other accounts
having an aggregate value at December 31, 1998, of approximately $9.4 billion.

Each Fund pays Seligman a fee for its management services. The fee for each Fund
is equal to an annual rate of .50% of the Fund's average daily net assets.
    

Portfolio Management

   
The Funds are managed by the Seligman Municipals Team, headed by Thomas G.
Moles. Mr. Moles, a Managing Director of Seligman, has been Vice President and
Portfolio Manager of each Fund since its inception. Mr. Moles is also President
and Portfolio Manager of Seligman Quality Municipal Fund, Inc. and Seligman
Select Municipal Fund, Inc., two closed-end investment companies.
    


- --------------------------------------------

Affilates of Seligman

Seligman Advisors, Inc. (Seligman Advisors):
Each Fund's general distributor; responsible
for accepting orders for purchases and sales
of Fund shares.

   
Seliman Services, Inc.:
    

A limited purpose broker/dealer; acts as the
broker/dealer of record for shareholder
accounts that do not have a designated
financial advisor.

Seligman Data Corp. (SDC):

Each Fund's shareholder service agent
provides shareholder account services to the
Fund at cost.

- --------------------------------------------


                                       42
- --------------------------------------------------------------------------------
<PAGE>


- --------------------------------------------------------------------------------

YEAR 2000

As the millennium approaches, mutual funds, financial and business
organizations, and individuals could be adversely affected if their computer
systems do not properly process and calculate date-related information and data
on and after January 1, 2000. Like other mutual funds, the Funds rely upon
service providers and their computer systems for its day-to-day operations. Many
of the Funds' service providers in turn depend upon computer systems of their
vendors. Seligman and SDC, have established a year 2000 project team. The team's
purpose is to assess the state of readiness of Seligman and SDC and the Funds'
other service providers and vendors. The team is comprised of several
information technology and business professionals, as well as outside
consultants. The Project Manager of the team reports directly to the
Administrative Committee of Seligman. The Project Manager and other members of
the team also report to each Fund's Board and its Audit Committee.

   
The team has identified the service providers and vendors who furnish critical
services or software systems to the Funds, including securities firms that
execute portfolio transactions for the Funds and firms responsible for
shareholder account recordkeeping. The team is working with these critical
service providers and vendors to evaluate the impact year 2000 issues may have
on their ability to provide uninterrupted services to the Funds. The team will
assess the feasibility of their year 2000 plans. The team has made progress on
its year 2000 contingency plans -- recovery efforts the team will employ in the
event that year 2000 issues adversely affect the Funds. The team anticipates
finalizing these plans in the near future.

The Funds anticipate the team will have implemented all significant components
of the team's year 2000 plans by mid-1999, including appropriate testing of
critical systems and receipt of satisfactory assurances from critical service
providers and vendors regarding their year 2000 compliance. The Funds believe
that the critical systems on which they rely will function properly on and after
the year 2000, but this is not guaranteed. If these systems do not function
properly, or the Funds' critical service providers are not successful in
implementing their year 2000 plans, the Funds' operations may be adversely
affected, including pricing, securities trading and settlement, and the
provision of shareholder services. 

In addition, the Funds hold securities issued by governmental or
quasi-governmental issuers, which, like other organizations, may be susceptible
to year 2000 concerns. Year 2000 issues may affect an issuer's operations,
creditworthiness, and ability to make timely payment on any indebtedness and
could have an adverse impact on the value of its securities. If a Fund holds
these securities, its performance could be negatively affected. Seligman seeks
to identify an issuer's state of year 2000 readiness as part of the research it
employs. However, the perception of an issuer's year 2000 preparedness is only
one of the many factors considered in determining whether to buy, sell, or
continue to hold a security. Information provided by issuers concerning their
state of readiness may or may not be accurate or readily available. Further, the
Funds may be adversely affected if the exchanges, markets, depositories,
clearing agencies, or government or third parties responsible for infrastructure
needs do not address their year 2000 issues in a satisfactory manner.
    

SDC has informed the Funds that it does not expect the cost of its services to
increase materially as a result of the modifications to its computer systems
necessary to prepare for the year 2000. The Funds will not pay to remediate the
systems of Seligman or bear directly the costs to remediate the systems of any
other service providers or vendors, other than SDC. Affiliates of Seligman:


                                       43
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Shareholder Information

DECIDING WHICH CLASS OF SHARES TO BUY

Each Fund's Class A and Class D shares represent an interest in the same
portfolio of investments. However, each Class has its own sales charge schedule
and is subject to different ongoing 12b-1 fees. When deciding which Class of
shares to buy, you should consider, among other things:

     o    The amount you plan to invest.

     o    How long you intend to remain invested in the Fund, or another
          Seligman mutual fund.

     o    If you would prefer to pay an initial sales charge and lower ongoing
          12b-1 fees, or be subject to a CDSC and pay higher ongoing 12b-1 fees.

     o    Whether you may be eligible for reduced or no sales charges when you
          buy or sell shares. 

Your financial advisor will be able to help you decide which Class of shares
best meets your needs.

Class A

     o    Initial sales charge on Fund purchases, as set forth below:

<TABLE>
<CAPTION>
                                                         Sales Charge    Regular Dealer
                                      Sales Charge          as a %          Discount
                                         as a %             of Net          as a % of
      Amount of your Investment   of Offering Price(1)  Amount Invested  Offering Price
      --------------------------  --------------------  ---------------  --------------
<S>                                       <C>                <C>              <C>  
      Less than $ 50,000                  4.75%              4.99%            4.25%
      $50,000 - $ 99,999                  4.00               4.17             3.50
      $100,000 - $249,999                 3.50               3.63             3.00
      $250,000 - $499,999                 2.50               2.56             2.25
      $500,000 - $999,999                 2.00               2.04             1.75
      $1,000,000 and over(2)              0.00               0.00             0.00
</TABLE>

          (1)  "Offering Price" is the amount that you actually pay for Fund
               shares; it includes the initial sales charge.

          (2)  You will not pay a sales charge on purchases of $1 million or
               more, but you will be subject to a 1% CDSC if you sell your
               shares within 18 months.

     o    Annual 12b-1 fee (for shareholder services) of up to 0.25%.

     o    No sales charge on reinvested dividends or capital gain distributions.

Class D

     o    No initial sales charge on purchases.

     o    A 1% CDSC on shares sold within one year of purchase.

     o    Annual 12b-1 fee (for distribution and shareholder services) of 1.00%.

     o    No CDSC on redemptions of shares purchased with reinvested dividends
          or capital gain distributions.


   
Each Fund has adopted a plan under Rule 12b-1 of the Investment Company Act of
1940. The plan allows each Class to pay distribution and/or service fees for the
sale and distribution of its shares and/or for providing services to
shareholders.
    

Because 12b-1 fees are paid out of each Class's assets on an ongoing basis, over
time these fees will increase your investment expenses and may cost you more
than other types of sales charges.


                                       44
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

The Board of Directors or Trustees, as applicable, believes that no conflict of
interest currently exists between a Fund's Class A and Class D shares. On an
ongoing basis, the Directors or Trustees, in the exercise of their fiduciary
duties under the Investment Company Act of 1940 and applicable state law, will
seek to ensure that no such conflict arises.

How CDSCs Are Calculated

To minimize the amount of CDSC you may pay when you sell your shares, each Fund
assumes that shares acquired through reinvested dividends and capital gain
distributions (which are not subject to a CDSC) are sold first. Shares that have
been in your account long enough so they are not subject to a CDSC are sold
next. After these shares are exhausted, shares will be sold in the order they
were purchased (oldest to youngest). The amount of any CDSC that you pay will be
based on the shares' original purchase price or current net asset value,
whichever is less.

   
You will not pay a CDSC when you exchange shares of any Fund to buy shares of
the same class of any other Seligman mutual fund. For the purpose of calculating
the CDSC when you sell shares that you acquired by exchanging shares of a Fund,
it will be assumed that you held the shares since the date you purchased the
shares of that Fund.
    

PRICING OF FUND SHARES

- ----------------------------------------
NAV:
Computed separately for each Class of a
Fund by dividing that Class's share of
the value of the net assets of the Fund
(i.e., its assets less liabilities) by
the total number of outstanding shares
of the Class.
- ----------------------------------------

   
When you buy or sell shares, you do so at the Class's net asset value (NAV) next
calculated after Seligman Advisors accepts your request. Any applicable sales
charge will be included in the purchase price for Class A shares. Purchase or
sale orders received by an authorized dealer or financial advisor by the close
of regular trading on the New York Stock Exchange (NYSE) (normally 4:00 p.m.
Eastern time) and accepted by Seligman Advisors before the close of business
(5:00 p.m. Eastern time) on the same day will be executed at the Class's NAV
calculated as of the close of regular trading on the NYSE on that day. Your
broker/dealer or financial advisor is responsible for forwarding your order to
Seligman Advisors before the close of business.

If your buy or sell order is received by your broker/dealer or financial advisor
after the close of regular trading on the NYSE, or is accepted by Seligman
Advisors after the close of business, the order will be executed at the Class's
NAV calculated as of the close of regular trading on the next NYSE trading day.
When you sell shares, you receive the Class's per share NAV, less any applicable
CDSC.
    

The NAV of a Fund's shares is determined each day, Monday through Friday, on
days that the NYSE is open for trading. Because of their higher 12b-1 fees, the
NAV of Class D shares will generally be lower than the NAV of Class A shares.

Securities owned by a Fund are valued at current market prices. If reliable
market prices are unavailable, securities are valued in accordance with
procedures approved by the Board of Directors or Trustees, as applicable.


                                       45
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

OPENING YOUR ACCOUNT

The Funds' shares are sold through authorized broker/dealers or financial
advisors who have sales agreements with Seligman Advisors. There are several
programs under which you may be eligible for reduced sales charges. Ask your
financial advisor if any of these programs apply to you.

To make your initial investment in a Fund, contact your financial advisor or
complete an account application and send it with your check directly to SDC at
the address provided on the account application. If you do not choose a Class,
your investment will automatically be made in Class A shares.

The required minimum initial investments are:

     o    Regular (non-retirement) accounts: $1,000

     o    For accounts opened concurrently with Invest-A-Check(R):         
          $100 to open if you will be making monthly investments
          $250 to open if you will be making quarterly investments

   
If you buy shares by check and subsequently sell the shares, SDC will not send
your proceeds until your check clears, which could take up to 15 calendar days
from the date of your purchase.

You will be sent a statement confirming your purchase, and any subsequent
transactions in your account. You will also be sent at least annually, a
statement detailing all your transactions in the Fund and all other Seligman
funds you own. Duplicate account statements will be sent to you free of charge
for the current year and most recent prior year. Copies of year-end statements
for prior years are available for a fee of $10 per year, per account, with a
maximum charge of $150 per account request. Send your request and a check for
the fee to SDC.
    

     If you want to be able to buy, sell, or exchange shares by telephone, you
        should complete an application when you open your account. This will
        prevent you from having to complete a supplemental election form
        (which may require a signature guarantee) at a later date.

HOW TO BUY ADDITIONAL SHARES

After you have made your initial investment, there are many options available to
make additional purchases of Fund shares. Shares may be purchased through your
authorized broker/dealer or financial advisor, or you may send a check directly
to SDC. Please provide either an investment slip or a note that provides your
name(s), Fund name, and account number. Your investment will be made in the
Class you already own.

Send investment checks to:

                 Seligman Data Corp.
                 P.O. Box 9766
                 Providence, RI 02940-5051

   
Your check must be in US dollars and be drawn on a US bank. You may not use
third party or credit card convenience checks for investment.
    


                                       46
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

You may also use the following account services to make additional investments:

Invest-a-Check(R). You may buy Fund shares electronically from a savings or
checking account of an Automated Clearing House (ACH) member bank. If your bank
is not a member of ACH, the Fund will debit your checking account by
preauthorized checks. You may buy Fund shares at regular monthly intervals in
fixed amounts of $100 or more, or regular quarterly intervals in fixed amounts
of $250 or more. If you use Invest-A-Check(R), you must continue to make
automatic investments until the Fund's minimum initial investment of $1,000 is
met or your account may be closed.

Automatic Dollar-Cost-Averaging. If you have at least $5,000 in Seligman Cash
Management Fund, you may exchange uncertificated shares of that fund to buy
shares of the same class of any Seligman mutual fund at regular monthly
intervals in fixed amounts of $100 or more or regular quarterly intervals in
fixed amounts of $250 or more. If you exchange Class A shares, you may pay an
initial sales charge to buy shares.

   
Automatic CD Transfer. You may instruct your bank to invest the proceeds of a
maturing bank certificate of deposit (CD) in shares of the Fund. If you wish to
use this service, contact SDC or your financial advisor to obtain the necessary
forms. Because your bank may charge you a penalty, it is not normally advisable
to withdraw CD assets before maturity.
    

Dividends From Other Investments. You may have your dividends from other
companies paid to the Fund. (Dividend checks must include your name, account
number, Fund name and Class of shares.) Direct Deposit. You may buy Fund shares
electronically with funds from your employer, the IRS or any other institution
that provides direct deposit. Call SDC for more information.

Seligman Time Horizon Matrix(SM). (Requires an initial total investment of
$10,000.) This is a needs-based investment process, designed to help you and
your financial advisor plan to seek your long-term financial goals. It considers
your financial needs, and helps frame a personalized asset allocation strategy
around the cost of your future commitments and the time you have to meet them.
Contact your financial advisor for more information.

Seligman Harvester. If you are a retiree or nearing retirement, this program is
designed to help you establish an investment strategy that seeks to meet your
income needs throughout your retirement. The strategy is customized to your
personal financial situation by allocating your assets to seek to address your
income requirements, and prioritizing your expenses and establishing a prudent
withdrawal schedule.

HOW TO EXCHANGE SHARES BETWEEN THE SELIGMAN MUTUAL FUNDS

You may sell Fund shares to buy shares of the same Class of another Seligman
mutual fund, or you may sell shares of another Seligman mutual fund to buy Fund
shares. Exchanges will be made at each fund's respective NAV. You will not pay
an initial sales charge when you exchange, unless you exchange Class A shares of
Seligman Cash Management Fund to buy shares of a Fund or another Seligman mutual
fund.

   
Only your dividend and capital gain distribution options and telephone services
will be automatically carried over to any new fund account. If you wish to carry
over any other account options (for example, Invest-a-Check(R) or Systematic
Withdrawals) to the new fund, you must specifically request so at the time of
your exchange.

If you exchange into a new fund, you must exchange enough to meet the new fund's
required minimum initial investment.

Before making an exchange, contact your financial advisor or SDC to obtain the
applicable fund prospectus(es), which you should read and understand before
investing.
    


                                       47
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<PAGE>


- --------------------------------------------------------------------------------

HOW TO SELL SHARES

The easiest way to sell Fund shares is by phone. If you have telephone services,
you may be able use this service to sell Fund shares. Restrictions apply to
certain types of accounts. Please see "Important Policies That May Affect Your
Account."

   
When you sell Fund shares by phone, a check for the proceeds is sent to your
address of record. If you have current ACH bank information on file, you may
have the proceeds of the sale of your Fund shares directly deposited into your
bank account (typically, 3-4 business days after your shares are sold).
    

You may always send a written request to sell shares of any Fund. It may take
longer to get your money if you send your request by mail.

You may need to provide additional documents to sell shares if you are:

     o    a corporation; o an executor or administrator;
     o    a trustee or custodian; or
     o    in a retirement plan.

If your Fund shares are represented by certificates, you will need to surrender
the certificates to SDC before you sell your shares.

Contact your financial advisor or SDC's Shareholder Services Department for
information on selling your shares under any of the above circumstances.

You   will need to guarantee your signature(s) if the proceeds are: 

     (1)  $50,000 or more;
     (2)  to be paid to someone other than all account owners, or
     (3)  mailed to other than your address of record.

- ----------------------------------------
Signature Guarantee:

Protects you and the Funds from fraud.
It guarantees that a signature is
genuine. A guarantee must be obtained
from an eligible financial institution.
Notarization by a notary public is not
an acceptable guarantee.
- ----------------------------------------

You may also use the following account services to sell shares:

Systematic Withdrawal Plan. If you have at least $5,000 in a Fund, you may
withdraw (sell) a fixed amount (minimum of $50) of uncertificated shares at
regular intervals. A check will be sent to you at your address of record or, if
you have current ACH bank information on file, you may have your payments
directly deposited to your predesignated bank account in 3-4 business days after
your shares are sold. If you bought $1,000,000 or more of Class A shares without
an initial sales charge, your withdrawals may be subject to a 1% CDSC if they
occur within 18 months of purchase. If you own Class D shares and reinvest your
dividends and capital gain distributions, you may withdraw 10% of the value of
your Fund account (at the time of election) annually without a CDSC.

Check Redemption Service. If you have at least $25,000 in a Fund, you may use
this service to draw checks against your Fund account in amounts of $500 or
more. If you have shares represented by certificates, those shares will not be
available to draw checks against. If you bought $1,000,000 or more of Class A
shares without an initial sales charge, you may be subject to a 1% CDSC if you
draw checks against the shares within 18 months of purchase. If you own Class D
shares, you may only draw checks against shares that have been held for one year
or more. If you did not elect this service on your account application, you must
complete a supplemental election form to add this service to your account.
Contact SDC for more information.


                                       48
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<PAGE>


- --------------------------------------------------------------------------------

IMPORTANT POLICIES THAT MAY AFFECT YOUR ACCOUNT

   
To protect you and other shareholders, each Fund reserves the right to:
    

     o    Refuse an exchange request if:

          1.   you have exchanged twice from the same fund in any three-month
               period.

          2.   the amount you wish to exchange equals the lesser of $1,000,000
               or 1% of a Fund's net assets, or 

          3.   you or your financial advisor have been advised that previous
               patterns of purchases and sales or exchanges have been considered
               excessive.

     o    Refuse any request to buy Fund shares.

     o    Reject any request received by telephone.

     o    Suspend or terminate telephone services.

     o    Reject a signature guarantee that SDC believes may be fraudulent.

     o    Close your fund account if its value falls below $500.

     o    Close your account if it does not have a certified taxpayer
          identification number.

Telephone Services

   
You and your broker/dealer or financial advisor representative or financial
advisor will be able to place the following requests by telephone, unless you
indicate on your account application that you do not want telephone services:

     o    Sell uncertificated shares (up to $50,000 per day, payable to account
          owner(s) and mailed to address of record)

     o    Exchange shares between funds o Change dividend and/or capital gain
          distribution options

     o    Change your address

     o    Establish systematic withdrawals to address of record
    

If you do not complete an account application when you open your account,
telephone services must be elected on a supplemental election form.

Restrictions apply to certain types of accounts:

     o    Trust accounts on which the current trustee is not listed may not sell
          Fund shares by phone.

     o    Corporations may not sell Fund shares by phone.

     o    IRAs may only exchange Fund shares or request address changes by
          phone.

     o    Group retirement plans may not sell Fund shares by phone; plans that
          allow participants to exchange by phone must provide a letter of
          authorization signed by the plan custodian or trustee and provide a
          supplemental election form signed by all plan participants.

Unless you have current ACH bank information on file, you will not be able to
sell Fund shares by phone within thirty days following an address change. Your
request must be communicated to an SDC representative.

You may not request any phone transactions via the automated access line.

   
You may cancel telephone services at any time by sending a written request to
SDC. Each account owner, by accepting or adding telephone services, authorizes
each of the other owners to make requests by phone. Your broker/dealer or
financial advisor representative or financial advisor may not establish
telephone services without your written authorization. SDC will send written
confirmation to the address of record when telephone services are added or
terminated.
    

During times of heavy call volume, you may not be able to get through to SDC by
phone to request a sale or exchange of shares. In this case, you may need to
write, and it may take longer for your request to be processed. A Fund's NAV may
fluctuate during this time.

The Funds and SDC will not be liable for processing requests received by phone
as long as it was reasonable to believe that the request was genuine.

Reinstatement Privilege 

   
If you sell Fund shares, you may, within 120 calendar days, use part or all of
the proceeds to buy shares of the same Fund or any other Seligman mutual fund
(reinstate your investment) without paying an initial sales charge or, if you
paid a CDSC when you sold your shares, receiving a credit for the applicable
CDSC paid. This privilege is available only once each calendar year. Contact
your financial advisor for more information. You should consult your tax advisor
concerning possible tax consequences of exercising this privilege.
    


                                       49
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<PAGE>


- --------------------------------------------------------------------------------

DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS

   
Each Fund generally declares any dividends from net investment income daily and
pays dividends on the 17th of each month. If the 17th day of a month falls on a
weekend or on a NYSE holiday, the dividend will be distributed on the previous
business day. The Funds distribute net capital gains realized on investments
annually. It is expected that the Funds' distributions will be primarily income
dividends.
    

- ----------------------------------------
Dividend:

A payment by a mutual fund, usually
derived from the fund's net investment
income (dividends and interest earned on
portfolio securities less expenses).

Capital Gain Distribution:

A payment to mutual fund shareholders
which represents profits realized on the
sale of securities in a Fund's
portfolio.

Ex-dividend Date:

The day on which any declared
distributions (dividends or capital
gains) are deducted from the Fund's
assets before it calculates its NAV.
- ----------------------------------------

   
You may elect to:

(1)  reinvest both dividends and capital gain distributions;

(2)  receive dividends in cash and reinvest capital gain distributions; or

(3)  receive both dividends and capital gain distributions in cash.
    

Your dividends and capital gain distributions will be reinvested if you do not
instruct otherwise.

If you want to change your election, you may write SDC at the address listed on
the back cover of this prospectus, or, if you have telephone services, you or
your financial advisor may call SDC. Your request must be received by SDC before
the record date to be effective for that dividend or capital gain distribution.

Cash dividends or capital gain distributions will be sent by check to your
address of record or, if you have current ACH bank information on file, directly
deposited into your predesignated bank account within 3-4 business days from the
payable date.

Dividends and capital gain distributions are reinvested to buy additional shares
on the payable date using the NAV of the payable date.

Dividends on Class D shares will be lower than the dividends on Class A shares
as a result of their higher 12b-1 fees. Capital gain distributions, if any, will
be paid in the same amount for each Class.

TAXES

The Funds intend to pay dividends that are exempt from regular income tax. A
Fund may invest a portion of its assets in securities that generate income that
is not exempt from federal or state income tax. Income exempt from federal tax
may be subject to state and local tax. If you wish more specific information on
the possible tax consequences of investing in a particular Fund, you should read
that Fund's Statement of Additional Information.

Any capital gains distributed by a Fund may be taxable, whether you take them in
cash or reinvest them to buy additional Fund shares. Capital gains may be taxed
at different rates depending on the length of time the Fund holds its assets.

When you sell Fund shares, any gain or loss you realize will generally be
treated as a long-term capital gain or loss if you held your shares for more
than one year, or as a short-term capital gain or loss if you held your shares
for one year or less. However, if you sell Fund shares on which a long-term
capital gain distribution has been received and you held the shares for six
months or less, any loss you realize will be treated as a long-term capital loss
to the extent that it offsets the long-term capital gain distribution.

 An exchange of Fund shares is a sale and
may result in a gain or loss for federal income tax purposes. 

Each January, you will be sent information on the tax status of any
distributions made during the previous calendar year. Because each shareholder's
situation is unique, you should always consult your tax advisor concerning the
effect income taxes may have on your individual investment.


                                       50
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

Financial Highlights


   
The tables below are intended to help you understand the financial performance
of each Fund's Classes for the past five years or, if less than five years, the
period of the Class's operations. Certain information reflects financial results
for a single share of a Class that was held throughout the periods shown. "Total
return" shows the rate that you would have earned (or lost) on an investment in
the Fund, assuming you reinvested all your dividends and capital gain
distributions. Total returns do not reflect any sales charges. Deloitte & Touche
LLP, independent auditors, have audited this information for each Fund. Their
report, along with the financial statements, is included in each Fund's annual
report, which is available upon request.


NATIONAL FUND

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------    --------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------    --------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------   -------    ------   ------  ------   ------ -----------
<S>                                  <C>       <C>      <C>      <C>       <C>         <C>      <C>     <C>      <C>      <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................    $8.01    $7.70    $7.58     $7.18     $8.72     $8.02    $7.70   $7.57    $7.18   $8.20
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income ............      .39     0.39     0.40      0.40      0.41      0.32     0.32    0.33     0.32    0.22
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
  Net gains or losses on securities
    (both realized and unrealized)..      .31     0.31     0.12      0.40     (1.04)     0.29     0.32    0.13     0.39   (1.02)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.70     0.70     0.52      0.80     (0.63)     0.61     0.64    0.46     0.71   (0.80)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
 Less distributions:
  Dividends (from net
    investment income) .............    (0.39)   (0.39)   (0.40)    (0.40)    (0.41)    (0.32)   (0.32)  (0.33)   (0.32)  (0.22)
  Distributions (from capital gains)      --       --       --        --      (0.50)      --       --      --       --      --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.39)   (0.39)   (0.40)    (0.40)    (0.91)    (0.32)   (0.32)  (0.33)   (0.32)  (0.22)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $8.32    $8.01    $7.70     $7.58     $7.18     $8.31    $8.02   $7.70    $7.57   $7.18
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     9.00%    9.40%    6.97%    11.48%    (7.83)%    7.76%    8.56%   6.13%   10.17%  (9.96)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ................... $101,909  $97,481  $98,767  $104,184  $111,374    $7,392   $2,279  $4,826   $1,215    $446
Ratio of expenses to average
  net assets .......................     0.80%    0.84%    0.80%     0.86%     0.85%     1.71%    1.75%   1.67%    1.95%   1.76%(3)
Ratio of net income to
  average net assets ...............     4.82%    5.05%    5.19%     5.46%     5.30%     3.91%    4.15%   4.27%    4.40%   4.37%(3)
Portfolio turnover rate ............    18.00%   20.63%   33.99%    24.91%    24.86%    18.00%   20.63%  33.99%   24.91%  24.86%(4)
</TABLE>

    

- ----------
See footnotes on page 60.


                                       51
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<PAGE>


- --------------------------------------------------------------------------------

CALIFORNIA HIGH-YIELD FUND

   

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------    --------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------    --------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------   -------    ------   ------  ------   ------ -----------
<S>                                   <C>      <C>      <C>       <C>       <C>        <C>      <C>     <C>      <C>       <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................    $6.61    $6.50    $6.47     $6.30     $6.73     $6.61    $6.51   $6.48    $6.31   $6.67
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income ............     0.32     0.34     0.36      0.37      0.37      0.26     0.28    0.30     0.31    0.21
  Net gains or losses on securities
    (both realized and unrealized)..     0.22     0.20     0.05      0.17     (0.34)     0.22     0.19    0.05     0.17   (0.36)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.54     0.54     0.41      0.54      0.03      0.48     0.47    0.35     0.48   (0.15)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Less distributions:
  Dividends (from net
    investment income) .............    (0.32)   (0.34)   (0.36)    (0.37)    (0.37)    (0.26)   (0.28)  (0.30)   (0.31)  (0.21)
  Distributions (from capital gains)    (0.03)   (0.09)   (0.02)     --       (0.09)    (0.03)   (0.09)  (0.02)    --      --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.35)   (0.43)   (0.38)    (0.37)    (0.46)    (0.29)   (0.37)  (0.32)   (0.31)  (0.21)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $6.80    $6.61    $6.50     $6.47     $6.30     $6.80    $6.61   $6.51    $6.48   $6.31
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     8.45%    8.74%    6.49%     8.85%     0.41%     7.47%    7.60%   5.53%    7.78%  (2.47)%(2)

Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................  $58,374  $52,883  $50,264   $51,504   $48,007    $6,393   $3,320  $1,919   $1,277    $650
Ratio of expenses to average
  net assets .......................     0.82%    0.87%    0.84%     0.90%     0.85%     1.73%    1.77%   1.74%    1.91%   1.74%(3)
Ratio of net income to
  average net assets ...............     4.81%    5.26%    5.49%     5.84%     5.74%     3.90%    4.36%   4.59%    4.84%   4.73%(3)
Portfolio turnover rate ............    10.75%   22.42%   34.75%    17.64%     8.36%    10.75%   22.42%  34.75%   17.64%   8.36%(4)

CALIFORNIA QUALITY FUND

Per Share Data:*
Net asset value, beginning
  of period ........................    $6.99    $6.75    $6.65     $6.39     $7.28     $6.97    $6.74   $6.63    $6.38   $7.13
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income ............     0.33     0.34     0.35      0.34      0.35      0.27     0.28    0.28     0.28    0.19
  Net gains or losses on securities
    (both realized and unrealized) .     0.25     0.24     0.11      0.32     (0.73)     0.25     0.23    0.12     0.31   (0.75)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.58     0.58     0.46      0.66     (0.38)     0.52     0.51    0.40     0.59   (0.56)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Less distributions:
  Dividends (from net
    investment income) .............    (0.33)   (0.34)   (0.35)    (0.34)    (0.35)    (0.27)   (0.28)  (0.28)   (0.28)  (0.19)
  Distributions (from capital gains)    (0.03)    --      (0.01)    (0.06)    (0.16)    (0.03)    --     (0.01)   (0.06)   --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.36)   (0.34)   (0.36)    (0.40)    (0.51)    (0.30)   (0.28)  (0.29)   (0.34)  (0.19)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $7.21    $6.99    $6.75     $6.65     $6.39     $7.19    $6.97   $6.74    $6.63   $6.38
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     8.67%    8.87%    7.00%    10.85%    (5.46)%    7.71%    7.75%   6.20%    9.61%  (8.01)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................  $87,522  $86,992  $95,560   $94,947   $99,020    $2,302   $1,677  $1,645     $863    $812
Ratio of expenses to average
  net assets .......................     0.77%    0.82%    0.79%     0.89%     0.81%     1.68%    1.72%   1.69%    1.88%   1.77%(3)
Ratio of net income to
  average net assets ...............     4.75%    4.99%    5.11%     5.34%     5.20%     3.84%    4.09%   4.21%    4.36%   4.39%(3)
Portfolio turnover rate ............    30.82%   12.16%   12.84%    11.24%    22.16%    30.82%   12.16%  12.84%   11.24%  22.16%(4)
</TABLE>

    

- ----------
See footnotes on page 60.


                                       52
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<PAGE>


- --------------------------------------------------------------------------------

COLORADO FUND

   

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------     -------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------     -------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------   -------     -----   ------  ------   ------ -----------
<S>                                   <C>      <C>      <C>      <C>        <C>        <C>      <C>     <C>      <C>       <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................    $7.42    $7.27    $7.30     $7.09     $7.76     $7.42    $7.27   $7.29    $7.09   $7.72
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income ............     0.36     0.37     0.37      0.38      0.37      0.29     0.30    0.31     0.30    0.20
  Net gains or losses on securities
    (both realized and unrealized)..     0.22     0.15    (0.03)     0.21     (0.59)     0.21     0.15   (0.02)    0.20   (0.63)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.58     0.52     0.34      0.59     (0.22)     0.50     0.45    0.29     0.50   (0.43)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Less distributions:
  Dividends (from net
    investment income) .............    (0.36)   (0.37)   (0.37)    (0.38)    (0.37)    (0.29)   (0.30)  (0.31)   (0.30)  (0.20)
  Distributions (from capital gains)      --       --       --        --      (0.08)      --       --      --       --      --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.36)   (0.37)   (0.37)    (0.38)    (0.45)    (0.29)   (0.30)  (0.31)   (0.30)  (0.20)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $7.64    $7.42    $7.27     $7.30     $7.09     $7.63    $7.42   $7.27    $7.29   $7.09
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     8.03%    7.30%    4.76%     8.56%    (2.92)%    6.90%    6.34%   3.95%    7.26%  (5.73)%(2)

Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................  $45,583  $49,780  $52,295   $54,858   $58,197      $344     $238    $255     $193     $96
Ratio of expenses to average
  net assets .......................     0.90%    0.90%    0.85%     0.93%     0.86%     1.80%    1.81%   1.75%    2.02%   1.78%(3)
Ratio of net income to
  average net assets ...............     4.80%    5.01%    5.07%     5.31%     5.06%     3.90%    4.10%   4.17%    4.23%   4.05%(3)
Portfolio turnover rate ............    28.66%    3.99%   12.39%    14.70%    10.07%    28.66%    3.99%  12.39%   14.70%  10.07%(4)


FLORIDA FUND

Per Share Data:*
Net asset value, beginning
  of period ........................    $7.80    $7.67    $7.71     $7.34     $8.20     $7.81    $7.68   $7.72    $7.34   $8.10
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income**...........     0.35     0.36     0.38      0.40      0.42      0.29     0.30    0.32     0.34    0.24
  Net gains or losses on securities
    (both realized and unrealized)..     0.34     0.23     0.04      0.37     (0.74)     0.34     0.23    0.04     0.38   (0.76)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.69     0.59     0.42      0.77     (0.32)     0.63     0.53    0.36     0.72   (0.52)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
 Less distributions:
  Dividends (from net
    investment income) .............    (0.35)   (0.36)   (0.38)    (0.40)    (0.42)    (0.29)   (0.30)  (0.32)   (0.34)  (0.24)
  Distributions (from capital gains)    (0.07)   (0.10)   (0.08)     --       (0.12)    (0.07)   (0.10)  (0.08)    --      --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.42)   (0.46)   (0.46)    (0.40)    (0.54)    (0.36)   (0.40)  (0.40)   (0.34)  (0.24)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $8.07    $7.80    $7.67     $7.71     $7.34     $8.08    $7.81   $7.68    $7.72   $7.34
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     9.16%    8.01%    5.54%    10.87%    (3.99)%    8.32%    7.18%   4.74%   10.07%  (6.64)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................  $42,464  $42,024  $45,200   $49,030   $49,897    $1,940   $1,678  $1,277     $603    $244
Ratio of expenses to average
  net assets**......................     1.00%    1.04%    0.97%     0.72%     0.42%     1.77%    1.81%   1.73%    1.66%   1.29%(3)
Ratio of net income to average
  net assets**......................     4.45%    4.70%    4.90%     5.38%     5.49%     3.68%    3.93%   4.14%    4.53%   4.61%(3)
Portfolio turnover rate ............     6.73%   33.68%   18.53%    11.82%     6.17%     6.73%   33.68%  18.53%   11.82%   6.17%(4)
</TABLE>

    

- ----------
See footnotes on page 60.

                                       53
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<PAGE>


- --------------------------------------------------------------------------------

GEORGIA FUND

   

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------     -------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------     -------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------   -------     -----   ------  ------   ------ -----------
<S>                                   <C>      <C>      <C>      <C>        <C>        <C>     <C>     <C>      <C>       <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................    $8.12    $7.87    $7.81     $7.48     $8.43     $8.13    $7.88   $7.82    $7.49   $8.33
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income**...........     0.38     0.38     0.39      0.39      0.41      0.30     0.31    0.32     0.32    0.22
  Net gains or losses on securities
    (both realized and unrealized)..     0.29     0.28     0.11      0.43     (0.86)     0.30     0.28    0.11     0.43   (0.84)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.67     0.66     0.50      0.82     (0.45)     0.60     0.59    0.43     0.75   (0.62)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Less distributions:
  Dividends (from net
    investment income) .............    (0.38)   (0.38)   (0.39)    (0.39)    (0.41)    (0.30)   (0.31)  (0.32)   (0.32)  (0.22)
  Distributions (from capital gains)    (0.03)   (0.03)   (0.05)    (0.10)    (0.09)    (0.03)   (0.03)  (0.05)   (0.10)   --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.41)   (0.41)   (0.44)    (0.49)    (0.50)    (0.33)   (0.34)  (0.37)   (0.42)  (0.22)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $8.38    $8.12    $7.87     $7.81     $7.48     $8.40    $8.13   $7.88    $7.82   $7.49
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     8.44%    8.65%    6.56%    11.66%    (5.52)%    7.59%    7.67%   5.60%   10.58%  (7.57)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................  $48,424  $50,614  $50,995   $57,678   $61,466    $2,809   $2,640  $2,327   $2,079    $849
Ratio of expenses to average
  net assets**......................     0.89%    0.89%    0.83%     0.91%     0.73%     1.80%    1.79%   1.73%    1.90%   1.76%(3)
Ratio of net income to
  average net assets**..............     4.57%    4.82%    4.94%     5.26%     5.21%     3.66%    3.92%   4.03%    4.28%   4.28%(3)
Portfolio turnover rate ............     2.92%   12.28%   16.24%     3.36%    19.34%     2.92%   12.28%  16.24%    3.36%  19.34%(4)


LOUISIANA FUND

Per Share Data:*
Net asset value, beginning
  of period ........................    $8.28    $8.16    $8.14     $7.94     $8.79     $8.27    $8.16   $8.14    $7.94   $8.73
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income ............     0.41     0.41     0.42      0.43      0.44      0.33     0.34    0.35     0.35    0.24
  Net gains or losses on securities
    (both realized and unrealized)..     0.24     0.23     0.08      0.34     (0.77)     0.24     0.22    0.08     0.34   (0.79)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.65     0.64     0.50      0.77     (0.33)     0.57     0.56    0.43     0.69   (0.55)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Less distributions:
  Dividends (from net
    investment income) .............    (0.41)   (0.41)   (0.42)    (0.43)    (0.44)    (0.33)   (0.34)  (0.35)   (0.35)  (0.24)
  Distributions (from capital gains)    (0.01)   (0.11)   (0.06)    (0.14)    (0.08)    (0.01)   (0.11)  (0.06)   (0.14)   --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.42)   (0.52)   (0.48)    (0.57)    (0.52)    (0.34)   (0.45)  (0.41)   (0.49)  (0.24)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $8.51    $8.28    $8.16     $8.14     $7.94     $8.50    $8.27   $8.16    $8.14   $7.94
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     8.08%    8.17%    6.32%    10.30%    (3.83)%    7.11%    7.07%   5.37%    9.17%  (6.45)%(2)

Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................  $56,308  $56,199  $57,264   $61,988   $61,441      $837     $509    $389     $465    $704
Ratio of expenses to average
  net assets .......................     0.88%    0.86%    0.82%     0.89%     0.87%     1.78%    1.76%   1.72%    1.91%   1.78%(3)
Ratio of net income to
  average net assets ...............     4.86%    5.08%    5.15%     5.44%     5.31%     3.96%    4.18%   4.25%    4.41%   4.33%(3)
Portfolio turnover rate ............    15.72%   16.08%   10.08%     4.82%    17.16%    15.72%   16.08%  10.08%    4.82%  17.16%(4)
</TABLE>

    

- ----------
See footnotes on page 60.

                                       54
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<PAGE>


- --------------------------------------------------------------------------------

MARYLAND FUND

   

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------     -------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------     -------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------   -------     -----   ------  ------   ------ -----------
<S>                                   <C>     <C>       <C>      <C>        <C>         <C>     <C>     <C>      <C>       <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................    $8.14    $7.99     $7.96    $7.71      $8.64     $8.15   $7.99   $7.97    $7.72   $8.46
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:                                                     
  Net investment income ............     0.40     0.40      0.40     0.41       0.42      0.32    0.33    0.33     0.33    0.23
  Net gains or losses on securities                                                    
    (both realized and unrealized)..     0.23     0.19      0.06     0.38      (0.76)     0.23    0.20    0.05     0.38   (0.74)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.63     0.59      0.46     0.79      (0.34)     0.55    0.53    0.38     0.71   (0.51)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Less distributions:                                                                    
  Dividends (from net                                                                  
    investment income) .............    (0.40)   (0.40)    (0.40)   (0.41)     (0.42)    (0.32)  (0.33)  (0.33)   (0.33)  (0.23)
  Distributions (from capital gains)    (0.05)   (0.04)    (0.03)   (0.13)     (0.17)    (0.05)  (0.04)  (0.03)   (0.13)   --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.45)   (0.44)    (0.43)   (0.54)     (0.59)    (0.37)  (0.37)  (0.36)   (0.46)  (0.23)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $8.32    $8.14     $7.99    $7.96      $7.71     $8.33   $8.15   $7.99    $7.97   $7.72
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     7.89%    7.64%     6.00%   10.90%     (4.08)%    6.91%   6.80%   4.91%    9.75%  (6.21)%(2)

Ratios/Supplemental Data:                                                              
Net assets, end of period                                                              
  (in thousands) ...................  $54,891  $52,549   $54,041  $56,290    $57,263    $3,128  $2,063  $2,047     $630    $424
Ratio of expenses to average                                                           
  net assets .......................     0.89%    0.90%     0.84%    0.96%      0.92%     1.80%   1.81%   1.72%    2.02%   1.80%(3)
Ratio of net income to                                                                 
  average net assets ...............     4.82%    4.99%     5.05%    5.31%      5.17%     3.91%   4.08%   4.14%    4.27%   4.26%(3)
Portfolio turnover rate ............     7.59%   14.79%     5.56%    3.63%     17.68%     7.59%  14.79%   5.56%    3.63%  17.68%(4)



MASSACHUSETTS FUND                                                                     

Per Share Data:*                                                                       
Net asset value, beginning                                                             
  of period ........................    $7.99    $7.85     $7.91    $7.66      $8.54     $7.99   $7.84   $7.90    $7.66   $8.33
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:                                                     
  Net investment income ............     0.38     0.40      0.41     0.42       0.44      0.31    0.33    0.34     0.34    0.24
  Net gains or losses on securities                                                    
    (both realized and unrealized)..     0.37     0.22      0.05     0.28      (0.67)     0.36    0.23    0.05     0.27   (0.67)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.75     0.62      0.46     0.70      (0.23)     0.67    0.56    0.39     0.61   (0.43)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Less distributions:                                                                    
  Dividends (from net                                                                  
    investment income) .............    (0.38)   (0.40)    (0.41)   (0.42)     (0.44)    (0.31)  (0.33)  (0.34)   (0.34)  (0.24)
  Distributions (from capital gains)    (0.09)   (0.08)    (0.11)   (0.03)     (0.21)    (0.09)  (0.08)  (0.11)   (0.03)   --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.47)   (0.48)    (0.52)   (0.45)     (0.65)    (0.40)  (0.41)  (0.45)   (0.37)  (0.24)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $8.27    $7.99     $7.85    $7.91      $7.66     $8.26   $7.99   $7.84    $7.90   $7.66
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     9.80%    8.11%     5.97%    9.58%     (2.94)%    8.68%   7.29%   5.01%    8.33%  (5.34)%(2)

Ratios/Supplemental Data:                                                              
Net assets, end of period                                                              
  (in thousands) ................... $109,328 $110,011  $109,872 $115,711   $120,149    $1,468  $1,245  $1,405     $809  $1,099
Ratio of expenses to average                                                           
  net assets .......................     0.80%    0.84%     0.80%    0.86%      0.85%     1.71%   1.74%   1.70%    1.95%   1.78%(3)
Ratio of net income to                                                                 
  average net assets ...............     4.72%    5.06%     5.24%    5.51%      5.46%     3.81%   4.16%   4.32%    4.47%   4.52%(3)
Portfolio turnover rate ............    13.41%   29.26%    26.30%   16.68%     12.44%    13.41%  29.26%  26.30%   16.68%  12.44%(4)
</TABLE>                                       

    

- ----------
See footnotes on page 60.

                                       55
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

MICHIGAN FUND

   

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------     -------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------     -------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------   -------     -----   ------  ------   ------ -----------
<S>                                  <C>      <C>      <C>       <C>       <C>         <C>      <C>     <C>      <C>     <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................    $8.60    $8.46    $8.54     $8.28     $9.08     $8.59    $8.45   $8.54    $8.28   $9.01    
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:   
  Net investment income ............     0.41     0.43     0.45      0.46      0.46      0.33     0.36    0.37     0.37    0.25
  Net gains or losses on securities  
    (both realized and unrealized)       0.30     0.23     0.06      0.30     (0.71)     0.30     0.23    0.05     0.30   (0.73)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.71     0.66     0.51      0.76     (0.25)     0.63     0.59    0.42     0.67   (0.48)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Less distributions:                  
  Dividends (from net                
    investment income) .............    (0.41)   (0.43)   (0.45)    (0.46)    (0.46)    (0.33)   (0.36)  (0.37)   (0.37)  (0.25)
  Distributions (from capital gains)    (0.07)   (0.09)   (0.14)    (0.04)    (0.09)    (0.07)   (0.09)  (0.14)   (0.04)   --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.48)   (0.52)   (0.59)    (0.50)    (0.55)    (0.40)   (0.45)  (0.51)   (0.41)  (0.25)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $8.83    $8.60    $8.46     $8.54     $8.28     $8.82    $8.59   $8.45    $8.54   $8.28
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     8.63%    8.16%    6.16%     9.56%    (2.90)%    7.66%    7.19%   5.09%    8.36%  (5.47)%(2)

Ratios/Supplemental Data:            
Net assets, end of period            
  (in thousands) ................... $144,161 $143,370 $148,178  $151,589  $151,095    $1,841   $1,845  $1,486   $1,172    $671
Ratio of expenses to average         
  net assets .......................     0.79%    0.81%    0.78%     0.87%     0.84%     1.70%    1.71%   1.68%    2.01%   1.75%(3)
Ratio of net income to               
  average net assets ...............     4.78%    5.13%    5.29%     5.50%     5.32%     3.87%    4.23%   4.39%    4.40%   4.40%(3)
Portfolio turnover rate ............    23.60%   10.98%   19.62%    20.48%    10.06%    23.60%   10.98%  19.62%   20.48%  10.06%(4)


MINNESOTA FUND                       

Per Share Data:*                     
Net asset value, beginning           
  of period ........................    $7.79    $7.68    $7.82     $7.72     $8.28     $7.79    $7.68   $7.82    $7.73   $8.22
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:   
  Net investment income ............     0.38     0.40     0.42      0.45      0.45      0.31     0.33    0.35     0.38    0.25
  Net gains or losses on securities  
    (both realized and unrealized) .     0.20     0.11    (0.12)     0.11     (0.44)     0.20     0.11   (0.12)    0.10   (0.49)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total from investment operations ...     0.58     0.51     0.30      0.56      0.01      0.51     0.44    0.23     0.48   (0.24)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Less distributions:                  
  Dividends (from net                
    investment income) .............    (0.38)   (0.40)   (0.42)    (0.45)    (0.45)    (0.31)   (0.33)  (0.35)   (0.38)  (0.25)
  Distributions (from capital gains)    (0.01)      --    (0.02)    (0.01)    (0.12)    (0.01)     --    (0.02)   (0.01)    --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Total distributions ................    (0.39)   (0.40)   (0.44)    (0.46)    (0.57)    (0.32)   (0.33)  (0.37)   (0.39)  (0.25)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Net asset value, end of period .....    $7.98    $7.79    $7.68     $7.82     $7.72     $7.98    $7.79   $7.68    $7.82   $7.73
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     7.68%    6.85%    3.99%     7.61%     0.12%     6.71%    5.89%   3.06%    6.45%  (3.08)%(2)

Ratios/Supplemental Data:            
Net assets, end of period            
  (in thousands) ................... $121,374 $121,674 $126,173  $132,716  $134,990    $2,103   $1,799  $2,036   $2,237  $1,649
Ratio of expenses to average         
  net assets .......................     0.81%    0.85%    0.81%     0.87%      0.85%    1.72%    1.75%   1.71%    1.85%   1.74%(3)
Ratio of net income to               
  average net assets ...............     4.87%    5.21%    5.47%     5.89%      5.70%    3.96%    4.31%   4.57%    4.92%   4.68%(3)
Portfolio turnover rate ............    21.86%    6.88%   26.89%     5.57%      3.30%   21.86%    6.88%  26.89%    5.57%   3.30%(4)
</TABLE>                             

    

- ----------
See footnotes on page 60.

                                       56
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

MISSOURI FUND

   

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------     -------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------     -------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------   -------     -----   ------  ------   ------ -----------
<S>                                   <C>     <C>       <C>      <C>        <C>        <C>      <C>     <C>      <C>       <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................   $7.82     $7.71    $7.70    $7.41      $8.31     $7.82    $7.72   $7.70    $7.41   $8.20
                                       -----     -----    -----    -----      -----     -----    -----   -----    -----   -----
 Income from investment operations:
  Net investment income**...........    0.36      0.38     0.39     0.40       0.40      0.29     0.31    0.32     0.32    0.22
  Net gains or losses on securities
    (both realized and unrealized) .    0.28      0.19     0.08     0.36      (0.79)     0.28     0.18    0.09     0.36   (0.79)
                                        ----      ----     ----     ----      -----      ----     ----    ----     ----   ----- 
Total from investment operations ...    0.64      0.57     0.47     0.76      (0.39)     0.57     0.49    0.41     0.68   (0.57)
                                        ----      ----     ----     ----      -----      ----     ----    ----     ----   ----- 
Less distributions:
  Dividends (from net
    investment income) .............   (0.36)    (0.38)   (0.39)   (0.40)     (0.40)    (0.29)   (0.31)  (0.32)   (0.32)  (0.22)
  Distributions (from capital gains)   (0.07)    (0.08)   (0.07)   (0.07)     (0.11)    (0.07)   (0.08)  (0.07)   (0.07)    --
                                       -----     -----    -----    -----      -----     -----    -----   -----    -----       
Total distributions ................   (0.43)    (0.46)   (0.46)   (0.47)     (0.51)    (0.36)   (0.39)  (0.39)   (0.39)  (0.22)
                                       -----     -----    -----    -----      -----     -----    -----   -----    -----   ----- 
Net asset value, end of period .....   $8.03     $7.82    $7.71    $7.70      $7.41     $8.03    $7.82   $7.72    $7.70   $7.41
                                       =====     =====    =====    =====      =====     =====    =====   =====    =====   =====
Total return .......................    8.41%     7.70%    6.27%   10.67%     (4.85)%    7.45%    6.60%   5.46%    9.49%  (7.16)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ................... $49,949   $52,766  $49,941  $51,169    $52,621      $418     $474    $565     $515    $350
Ratio of expenses to average
  net assets**......................    0.89%     0.89%    0.86%    0.88%      0.74%     1.79%    1.80%   1.76%    1.98%   1.70%(3)
Ratio of net income to
  average net assets**..............    4.59%     4.93%    5.03%    5.31%      5.18%     3.69%    4.02%   4.13%    4.23%   4.27%(3)
Portfolio turnover rate ............   21.26%     6.47%    8.04%    3.88%     14.33%    21.26%    6.47%   8.04%    3.88%  14.33%(4)


NEW JERSEY FUND

Per Share Data:*
Net asset value, beginning
  of period ........................   $7.56     $7.60    $7.59    $7.40      $8.24     $7.64    $7.68   $7.67    $7.48   $8.14
                                       -----     -----    -----    -----      -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income**...........    0.35      0.36     0.39     0.39       0.41      0.29     0.31    0.33     0.33    0.23
  Net gains or losses on securities
    (both realized and unrealized) .    0.30      0.21     0.01     0.29      (0.74)     0.30     0.21    0.01     0.29   (0.66)
                                        ----      ----     ----     ----      -----      ----     ----    ----     ----   ----- 
Total from investment operations ...    0.65      0.57     0.40     0.68      (0.33)     0.59     0.52    0.34     0.62   (0.43)
                                        ----      ----     ----     ----      -----      ----     ----    ----     ----   ----- 
Less distributions:
  Dividends (from net
    investment income) .............   (0.35)    (0.36)   (0.39)   (0.39)     (0.41)    (0.29)   (0.31)  (0.33)   (0.33)  (0.23)
                                       -----     -----    -----    -----      -----     -----    -----   -----    -----   ----- 
  Distributions (from capital gains)   (0.08)    (0.25)    --      (0.10)     (0.10)    (0.08)   (0.25)   --      (0.10)    --
                                       -----     -----             -----      -----     -----    -----            -----       
Total distributions ................   (0.43)    (0.61)   (0.39)   (0.49)     (0.51)    (0.37)   (0.56)  (0.33)   (0.43)  (0.23)
                                       -----     -----    -----    -----      -----     -----    -----   -----    -----   ----- 
Net asset value, end of period .....   $7.78     $7.56    $7.60    $7.59      $7.40     $7.86    $7.64   $7.68    $7.67   $7.48
                                       =====     =====    =====    =====      =====     =====    =====   =====    =====   =====
Total return .......................    8.87%     7.96%    5.37%    9.77%     (4.25)%    7.97%    7.10%   4.56%    8.79%  (5.47)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ................... $61,739   $62,597  $66,293  $73,561    $73,942    $1,582   $1,282  $1,152   $1,190    $986
Ratio of expenses to average
  net assets**......................    1.02%     1.06%    1.02%    1.01%      0.90%     1.80%    1.83%   1.79%    1.89%   1.75%(3)
Ratio of net income to
  average net assets**..............    4.54%     4.90%    5.06%    5.29%      5.24%     3.76%    4.13%   4.29%    4.45%   4.37%(3)
Portfolio turnover rate ............   23.37%    20.22%   25.65%    4.66%     12.13%    23.37%   20.22%  25.65%    4.66%  12.13%(4)
</TABLE>

    

- ----------
See footnotes on page 60.


                                       57
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<PAGE>


- --------------------------------------------------------------------------------

NEW YORK FUND

   

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------     -------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------     -------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------   -------     -----   ------  ------   ------ -----------
<S>                                   <C>     <C>       <C>      <C>        <C>         <C>     <C>     <C>      <C>     <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................   $8.28     $7.98    $7.86     $7.67     $8.75     $8.29    $7.98   $7.87    $7.67   $8.55
                                       -----     -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income ............    0.40      0.41     0.42      0.42      0.43      0.32     0.34    0.34     0.34    0.23
  Net gains or losses on securities
    (both realized and unrealized)..    0.40      0.32     0.12      0.36     (0.88)     0.39     0.33    0.11     0.37   (0.88)
                                        ----      ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Total from investment operations ...    0.80      0.73     0.54      0.78     (0.45)     0.71     0.67    0.45     0.71   (0.65)
                                        ----      ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Less distributions:
  Dividends (from net
    investment income) .............   (0.40)    (0.41)   (0.42)    (0.42)    (0.43)    (0.32)   (0.34)  (0.34)   (0.34)  (0.23)
                                       -----     -----    -----     -----     -----     -----    -----   -----    -----   ----- 
  Distributions (from capital gains)   (0.08)    (0.02)    --       (0.17)    (0.20)    (0.08)   (0.02)   --      (0.17)   --
                                       -----     -----              -----     -----     -----    -----            -----      
Total distributions ................   (0.48)    (0.43)   (0.42)    (0.59)    (0.63)    (0.40)   (0.36)  (0.34)   (0.51)  (0.23)
                                       -----     -----    -----     -----     -----     -----    -----   -----    -----   ----- 
Net asset value, end of period .....   $8.60     $8.28    $7.98     $7.86     $7.67     $8.60    $8.29   $7.98    $7.87   $7.67
                                       =====     =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................   10.02%     9.45%    6.97%    10.93%    (5.37)%    8.88%    8.60%   5.86%    9.87%  (7.73)%(2)

Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................  $84,822  $83,528  $82,719   $83,980   $90,914    $2,182   $1,572  $1,152     $885    $476
Ratio of expenses to average
  net assets .......................    0.81%     0.82%    0.77%    0.88%      0.87%     1.72%    1.73%   1.68%    1.96%   1.81%(3)
Ratio of net income to
  average net assets ...............    4.74%     5.09%    5.24%    5.52%      5.31%     3.83%    4.18%   4.33%    4.42%   4.39%(3)
Portfolio turnover rate ............   39.85%    23.83%   25.88%   34.05%     28.19%    39.85%   23.83%  25.88%   34.05%  28.19%(4)


NORTH CAROLINA FUND

Per Share Data:*
Net asset value, beginning
  of period ........................   $8.05     $7.84    $7.74     $7.30     $8.22     $8.05    $7.83   $7.74    $7.29   $8.17
                                       -----     -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income**...........    0.36      0.37     0.37      0.39      0.41      0.30     0.31    0.31     0.33    0.23
  Net gains or losses on securities
    (both realized and unrealized)..    0.31      0.24     0.11      0.45     (0.87)     0.31     0.25    0.10     0.46   (0.88)
                                        ----      ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Total from investment operations ...    0.67      0.61     0.48      0.84     (0.46)     0.61     0.56    0.41     0.79   (0.65)
                                        ----      ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Less distributions:
  Dividends (from net
    investment income) .............   (0.36)    (0.37)   (0.37)    (0.39)    (0.41)    (0.30)   (0.31)  (0.31)   (0.33)  (0.23)
  Distributions (from capital gains)   (0.06)    (0.03)   (0.01)    (0.01)    (0.05)    (0.06)   (0.03)  (0.01)   (0.01)   --
                                       -----     -----    -----     -----     -----     -----    -----   -----    -----      
Total distributions ................   (0.42)    (0.40)   (0.38)    (0.40)    (0.46)    (0.36)   (0.34)  (0.32)   (0.34)  (0.23)
                                       -----     -----    -----     -----     -----     -----    -----   -----    -----   ----- 
Net asset value, end of period .....   $8.30     $8.05    $7.84     $7.74     $7.30     $8.30    $8.05   $7.83    $7.74   $7.29
                                       =====     =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................    8.60%     8.01%    6.39%    11.92%    (5.80)%    7.77%    7.33%   5.45%   11.19%  (8.15)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ................... $32,358   $32,684  $35,934   $37,446   $38,920    $1,456   $1,217  $1,232   $1,257  $1,282
Ratio of expenses to average
  net assets**......................    1.05%     1.09%    1.05%    0.82%      0.44%     1.82%    1.85%   1.81%    1.64%   1.27%(3)
Ratio of net income to
  average net assets**..............    4.41%     4.66%    4.75%    5.21%      5.29%     3.64%    3.90%   3.99%    4.42%   4.49%(3)
Portfolio turnover rate ............   20.37%    13.04%   15.12%    4.38%     15.61%    20.37%   13.04%  15.12%    4.38%  15.61%(4)
</TABLE>

    

- ----------
See footnotes on page 60.

                                       58
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<PAGE>


- --------------------------------------------------------------------------------

OHIO FUND

   

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------     -------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------    --------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------   -------    ------   ------  ------   ------ -----------
<S>                                  <C>      <C>      <C>       <C>       <C>         <C>       <C>     <C>      <C>       <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................    $8.19    $8.09    $8.11     $7.90     $8.77     $8.23    $8.13   $8.15    $7.92   $8.61
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income ............     0.40     0.42     0.43      0.44      0.44      0.33     0.35    0.36     0.36    0.24
  Net gains or losses on securities
    (both realized and unrealized) .     0.29     0.17     0.02      0.28     (0.70)     0.29     0.17    0.02     0.30   (0.69)
                                         ----     ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Total from investment operations ...     0.69     0.59     0.45      0.72     (0.26)     0.62     0.52    0.38     0.66   (0.45)
                                         ----     ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Less distributions:
  Dividends (from net
    investment income) .............    (0.40)   (0.42)   (0.43)    (0.44)    (0.44)    (0.33)   (0.35)  (0.36)   (0.36)  (0.24)
  Distributions (from capital gains)    (0.11)   (0.07)   (0.04)    (0.07)    (0.17)    (0.11)   (0.07)  (0.04)   (0.07)    --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----       
Total distributions ................    (0.51)   (0.49)   (0.47)    (0.51)    (0.61)    (0.44)   (0.42)  (0.40)   (0.43)  (0.24)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   ----- 
Net asset value, end of period .....    $8.37    $8.19    $8.09     $8.11     $7.90     $8.41    $8.23   $8.13    $8.15   $7.92
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     8.77%    7.54%    5.68%     9.59%    (3.08)%    7.78%    6.57%   4.74%    8.67%  (5.36)%(2)

Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ................... $153,126 $154,419 $162,243  $170,191  $171,469    $1,103   $1,160  $1,011     $660    $324
Ratio of expenses to average
  net assets .......................     0.78%    0.81%    0.77%     0.84%     0.84%     1.69%    1.71%   1.67%    1.93%   1.78%(3)
Ratio of net income to
  average net assets ...............     4.92%    5.19%    5.32%     5.56%     5.34%     4.01%    4.29%   4.42%    4.48%   4.41%(3)
Portfolio turnover rate ............    24.74%   11.76%   12.90%     2.96%     9.37%    24.74%   11.76%  12.90%    2.96%   9.37%(4)


OREGON FUND

Per Share Data:*
Net asset value, beginning
  of period ........................    $7.87    $7.65    $7.66     $7.43     $8.08     $7.87    $7.64   $7.65    $7.43    $8.02
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----    -----
Income from investment operations:
  Net investment income**...........     0.36     0.38     0.40      0.40      0.40      0.29     0.31    0.33     0.33    0.22
                                         ----     ----     ----      ----      ----      ----     ----    ----     ----    ----
  Net gains or losses on securities
    (both realized and unrealized) .     0.28     0.26     --        0.25     (0.59)     0.27     0.27    --       0.24   (0.59)
                                         ----     ----               ----     -----      ----     ----             ----   ----- 
Total from investment operations ...     0.64     0.64     0.40      0.65     (0.19)     0.56     0.58    0.33     0.57   (0.37)
                                         ----     ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Less distributions:
  Dividends (from net
    investment income) .............    (0.36)   (0.38)   (0.40)    (0.40)    (0.40)    (0.29)   (0.31)  (0.33)   (0.33)  (0.22)
  Distributions (from capital gains)    (0.10)   (0.04)   (0.01)    (0.02)    (0.06)    (0.10)   (0.04)  (0.01)   (0.02)    --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----       
Total distributions ................    (0.46)   (0.42)   (0.41)    (0.42)    (0.46)    (0.39)   (0.35)  (0.34)   (0.35)  (0.22)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   ----- 
Net asset value, end of period .....    $8.05    $7.87    $7.65     $7.66     $7.43     $8.04    $7.87   $7.64    $7.65   $7.43
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     8.48%    8.60%    5.27%     9.05%    (2.38)%    7.37%    7.77%   4.33%    7.86%  (4.76)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................  $57,601  $55,239  $57,345   $59,549   $59,884    $2,650   $1,678  $1,540   $1,495    $843
Ratio of expenses to average
  net assets**......................     0.88%    0.90%    0.86%     0.86%     0.78%     1.79%    1.80%   1.76%    1.83%   1.72%(3)
Ratio of net income to
  average net assets**..............     4.60%    4.88%    5.18%     5.40%     5.20%     3.69%    3.98%   4.28%    4.41%   4.32%(3)
Portfolio turnover rate ............    12.62%   19.46%   28.65%     2.47%     9.43%    12.62%   19.46%  28.65%    2.47%   9.43%(4)
</TABLE>

    

- ----------
See footnotes on page 60.

                                       59
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

PENNSYLVANIA FUND

   

<TABLE>
<CAPTION>
                                                       CLASS A                                            CLASS D
                                     ----------------------------------------------     -------------------------------------------
                                                  Year ended September 30,                         Year ended September 30,
                                     ----------------------------------------------    --------------------------------------------
                                                                                                                         2/1/94(1)
                                       1998     1997     1996      1995       1994      1998     1997    1996     1995  to 9/30/94
                                     --------  -------  -------  --------  --------    ------   ------  ------   ------ -----------
<S>                                   <C>     <C>       <C>      <C>       <C>         <C>     <C>     <C>      <C>      <C> 
Per Share Data:*
Net asset value, beginning
  of period ........................    $7.96    $7.82    $7.79     $7.55     $8.61     $7.95    $7.81   $7.78    $7.54   $8.37
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income ............     0.35     0.36     0.38      0.38      0.39      0.29     0.30    0.32     0.31    0.22
  Net gains or losses on securities
    (both realized and unrealized) .     0.36     0.24     0.12      0.37     (0.80)     0.36     0.24    0.12     0.37   (0.83)
                                         ----     ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Total from investment operations ...     0.71     0.60     0.50      0.75     (0.41)     0.65     0.54    0.44     0.68   (0.61)
                                         ----     ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Less distributions:
  Dividends (from net
    investment income) .............    (0.35)   (0.36)   (0.38)    (0.38)    (0.39)    (0.29)   (0.30)  (0.32)   (0.31)  (0.22)
  Distributions (from capital gains)    (0.08)   (0.10)   (0.09)    (0.13)    (0.26)    (0.08)   (0.10)  (0.09)   (0.13)   --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----      
Total distributions ................    (0.43)   (0.46)   (0.47)    (0.51)    (0.65)    (0.37)   (0.40)  (0.41)   (0.44)  (0.22)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   ----- 
Net asset value, end of period .....    $8.24    $7.96    $7.82     $7.79     $7.55     $8.23    $7.95   $7.81    $7.78   $7.54
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     9.20%    7.89%    6.57%    10.55%    (5.00)%    8.36%    7.07%   5.76%    9.53%  (7.50)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ...................  $29,582  $30,092  $31,139   $33,251   $34,943      $607     $816    $876     $426     $43
Ratio of expenses to average
  net assets .......................     1.19%    1.19%    1.11%     1.21%     1.16%     1.97%    1.96%   1.88%    2.23%   2.00%(3)
Ratio of net income to
  average net assets ...............     4.34%    4.60%    4.82%     5.05%     4.91%     3.56%    3.83%   4.05%    4.10%   4.20%(3)
Portfolio turnover rate ............    13.05%   32.99%    4.56%    11.78%     7.71%    13.05%   32.99%   4.56%   11.78%   7.71%(4)


SOUTH CAROLINA FUND

Per Share Data:*
Net asset value, beginning
  of period ........................    $8.16    $8.07    $7.97     $7.61     $8.52     $8.16    $8.06   $7.97    $7.61   $8.42
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   -----
Income from investment operations:
  Net investment income ............     0.39     0.40     0.41      0.41      0.41      0.31     0.33    0.34     0.34    0.22
  Net gains or losses on securities
    (both realized and unrealized) .     0.29     0.22     0.12      0.37     (0.79)     0.29     0.23    0.11     0.37   (0.81)
                                         ----     ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Total from investment operations ...     0.68     0.62     0.53      0.78     (0.38)     0.60     0.56    0.45     0.71   (0.59)
                                         ----     ----     ----      ----     -----      ----     ----    ----     ----   ----- 
Less distributions:
  Dividends (from net
    investment income) .............    (0.39)   (0.40)   (0.41)    (0.41)    (0.41)    (0.31)   (0.33)  (0.34)   (0.34)  (0.22)
  Distributions (from capital gains)    (0.07)   (0.13)   (0.02)    (0.01)    (0.12)    (0.07)   (0.13)  (0.02)   (0.01)   --
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----      
Total distributions ................    (0.46)   (0.53)   (0.43)    (0.42)    (0.53)    (0.38)   (0.46)  (0.36)   (0.35)  (0.22)
                                        -----    -----    -----     -----     -----     -----    -----   -----    -----   ----- 
Net asset value, end of period .....    $8.38    $8.16    $8.07     $7.97     $7.61     $8.38    $8.16   $8.06    $7.97   $7.61
                                        =====    =====    =====     =====     =====     =====    =====   =====    =====   =====
Total return .......................     8.66%    7.99%    6.82%    10.69%    (4.61)%    7.68%    7.15%   5.73%    9.63%  (7.14)%(2)
Ratios/Supplemental Data:
Net assets, end of period
  (in thousands) ................... $106,328 $101,018 $108,163  $112,421  $115,133    $5,594   $3,663  $2,714   $1,704  $1,478
Ratio of expenses to average
  net assets .......................     0.80%    0.84%    0.80%     0.88%     0.83%     1.71%    1.75%   1.70%    1.85%   1.74%(3)
Ratio of net income to
  average net assets ...............     4.74%    5.04%    5.15%     5.38%     5.12%     3.83%    4.13%   4.25%    4.40%   4.29%(3)
Portfolio turnover rate ............    16.63%    --      20.66%     4.13%     1.81%    16.63%     --    20.66%    4.13%   1.81%(4)
</TABLE>

- ----------

*    Per share amounts are based on average shares outstanding.

**   For periods prior to 1996 (1997 for the Florida and the North Carolina
     Fund), Seligman voluntarily waived a portion of its management fee. These
     amounts reflect the effect of the waivers.

(1)  Commencement of offering of Class D shares.
(2)  Not annualized.
(3)  Annualized.
(4)  For the year ended September 30, 1994.

    

                                       60
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<PAGE>


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How to Contact Us

The Fund                     Write:    Corporate Communications/
                                       Investor Relations Department
                                       J. & W. Seligman & Co. Incorporated
                                       100 Park Avenue, New York, NY 10017

                             Phone:    Toll-Free (800) 221-7844 in the US or
                                       (212) 850-1864 outside the US

                             Website : http://www.seligman.com

Your Regular                         
(Non-Retirement)                     
Account                      Write:    Shareholder Services Department
                                       Seligman Data Corp.
                                       100 Park Avenue, New York, NY 10017

                             Phone:    Toll-Free (800) 221-2450 in the US or
                                       (212) 682-7600 outside the US

                             Website : http://www.seligman.com



                --------------------------------------------------
                  24-hour telephone access is available by     
                  dialing (800) 622-4597 on a touchtone        
                  telephone. You will have instant access      
                  to price, yield, account balance, most       
                  recent transaction, and other information.   
               --------------------------------------------------


                                       61
- --------------------------------------------------------------------------------

<PAGE>


- --------------------------------------------------------------------------------

For More Information









             -----------------------------------------------------------  
                                                                          
             The following information is available without charge upon   
             request: Call toll-free (800) 221-2450 in the US or (212)    
             682-7600 outside the US.                                     
                                                                          
             Statement of Additional Information (SAI) contains           
             additional information about the Fund. It is on file with    
             the Securities and Exchange Commission (SEC) and is          
             incorporated by reference into (is legally part of) this     
             prospectus.                                                  
                                                                          
             Annual/Semi-Annual Reports contain additional information    
             about the Fund's investments. In the Fund's annual report,   
             you will find a discussion of the market conditions          
                                                                          
             -----------------------------------------------------------  
             


                            SELIGMAN ADVISORS, INC.
                                an affiliate of

                                     [LOGO]

                             J. & W. SELIGMAN & CO.
                                  INCORPORATED

                                ESTABLISHED 1864

                         100 Park Avenue, New York 10017



Information about the Fund, including the SAI, can be viewed and copied at the
SEC's Public Reference Room in Washington, DC. For information about the
operation of the Public Reference Room, call (800) SEC-0330. The SAI,
Annual/Semi-Annual reports and other information about the Fund are also
available on the SEC's Internet site: http://www.sec.gov.

Copies of this information may be obtained, upon payment of a duplicating fee,
by writing: Public Reference Section of the SEC, Washington, DC 20549-6009.

SEC FILE NUMBERS:    Seligman Municipal Fund Series, Inc.: 811-3828
                     Seligman Municipal Series Trust: 811-4250
                     Seligman New Jersey Municipal Fund, Inc.: 811-5126
                     Seligman Pennsylvania Municipal Fund Series: 811-4666




- --------------------------------------------------------------------------------
<PAGE>

                         SELIGMAN MUNICIPAL SERIES TRUST

                 Seligman California Municipal High-Yield Series
                  Seligman California Municipal Quality Series


                       Statement of Additional Information
                                February 1, 1999

                                 100 Park Avenue
                            New York, New York 10017
                                 (212) 850-1864

                       Toll Free Telephone: (800) 221-2450


This Statement of Additional  Information (SAI) expands upon and supplements the
information contained in the current Prospectus of the Seligman Municipal Funds,
dated  February  1, 1999.  This SAI,  although  not in itself a  prospectus,  is
incorporated by reference into the Prospectus in its entirety. It should be read
in conjunction with the Prospectus,  which may be obtained by writing or calling
the Funds at the above address or telephone numbers.

The financial statements and notes included in the Funds' Annual Report, and the
Independent Auditors' Report thereon, are incorporated herein by reference.  The
Annual  Report will be furnished to you without  charge if you request a copy of
this SAI.






                                Table of Contents
   
Fund History .........................................................  2
Description of the Funds and Their Investments and Risks .............  2
Management of the Funds ..............................................  8
Control Persons and Principal Holders of Securities...................  13
Investment Advisory and Other Services ...............................  13
Brokerage Allocation and Other Practices .............................  18
Shares of Beneficial Interest and Other Securities ...................  19
Purchase, Redemption, and Pricing of Shares ..........................  19
Taxation of the Funds ................................................  23
Underwriters..........................................................  25
Calculation of Performance Data ......................................  27
Financial Statements..................................................  29
General Information...................................................  29
Appendix A ...........................................................  32
Appendix B ...........................................................  35
Appendix C ...........................................................  44
    


TEB1A

<PAGE>


                                  Fund History

Seligman  Municipal  Series Trust was  organized as an  unincorporated  business
trust under the laws of the  Commonwealth of  Massachusetts  by a Declaration of
Trust dated July 27, 1984.

            Description of the Funds and Their Investments and Risks

Classification

Seligman  Municipal  Series  Trust  is a  non-diversified,  open-end  management
investment  company, or mutual fund. It consists of four separate series, two of
which are discussed in this SAI:

Seligman California Municipal High-Yield Series (High-Yield Fund)
Seligman California Municipal Quality Series (Quality Fund)
Seligman Florida Municipal Series
Seligman North Carolina Municipal Series

Investment Strategies and Risks

The following information regarding the Funds' investments and risks supplements
the information contained in the Prospectus.

The Funds seek to provide  income exempt from regular  federal  income taxes and
the personal  income taxes of California  consistent  with the  preservation  of
capital and with consideration given to opportunities for capital gain.

   
The  High-Yield  Fund is  expected  to invest  principally,  without  percentage
limitations,  in  municipal  securities  which on the date of purchase are rated
within any rating category of Moody's  Investors Service (Moody's) or Standard &
Poor's Corporation (S&P),  including  securities rated below investment grade or
securities  that are not rated.  The  securities  in which the  High-Yield  Fund
invests  generally  involve  greater  volatility  of  price  and risk of loss of
principal and income than securities in higher rated categories.
    

Although securities rated in the fourth rating category are commonly referred to
as  investment  grade,  investment  in such  securities  could involve risks not
usually  associated with bonds rated in the first three categories.  Bonds rated
BBB by S&P are more  likely  as a  result  of  adverse  economic  conditions  or
changing  circumstance to exhibit a weakened capacity to pay interest and re-pay
principal than bonds in higher rating  categories and bonds rated Baa by Moody's
lack  outstanding  investment  characteristics  and  in  fact  have  speculative
characteristics according to Moody's.  Municipal securities in the fourth rating
category of S&P or Moody's will generally  provide a higher yield than do higher
rated municipal securities of similar maturities; however, they are subject to a
greater degree of  fluctuation  in value as a result of changing  interest rates
and economic conditions.  The market value of the municipal securities will also
be affected by the degree of interest of dealers to bid for them, and in certain
markets dealers may be more unwilling to trade municipal securities rated in the
fourth rating categories than in the higher rating categories.

The Quality  Fund is  expected  to invest,  without  limitations,  in  municipal
securities  which on the date of  purchase  are rated  within the three  highest
rating categories of Moody's or S&P.

Each Fund may invest in municipal securities that are not rated, or which do not
fall into the credit ratings noted above if, based upon credit  analysis,  it is
believed  that  such  securities  are  of  comparable  quality.  In  determining
suitability of investment in a lower rated or unrated security, a Fund will take
into  consideration  asset  and  debt  service  coverage,  the  purpose  of  the
financing,  history of the issuer,  existence of other rated  securities  of the
issuer and other considerations as may be relevant,  including  comparability to
other issuers.

A description of the credit rating categories is contained in Appendix A to this
SAI.


                                       2
<PAGE>

California Municipal  Securities.  California Municipal Securities notes, bonds,
and  commercial  paper  issued by or on behalf of the State of  California,  its
political subdivisions,  agencies, and instrumentalities,  the interest on which
is exempt from regular federal income taxes and California state personal income
taxes. Municipal securities are traded primarily in an over-the-counter  market.
Each may invest,  without  percentage  limitations,  in certain private activity
bonds, the interest on which is treated as a preference item for purposes of the
alternative minimum tax.

Under the Investment  Company Act of 1940 (1940 Act), the  identification of the
issuer of municipal  bonds or notes  depends on the terms and  conditions of the
obligation. If the assets and revenues of an agency, authority,  instrumentality
or other  political  subdivision  are  separate  from  those  of the  government
creating the  subdivision  and the  obligation  is backed only by the assets and
revenues of the  subdivision,  such  subdivision is regarded as the sole issuer.
Similarly,  in the case of an industrial  development  revenue bond or pollution
control  revenue bond,  if only the assets and revenues of the  non-governmental
user back the bond, the non-governmental user is regarded as the sole issuer. If
in  either  case  the  creating  government  or  another  entity  guarantees  an
obligation,  the security is treated as an issue of such guarantor to the extent
of the value of the guarantee.

   
The Funds invest principally in long-term  municipal bonds.  Municipal bonds are
issued to obtain funds for various public  purposes,  including the construction
of a wide  range of  public  facilities  such as  airports,  bridges,  highways,
housing,  hospitals,  mass  transportation,  schools,  streets,  water and sewer
works,  and gas and electric  utilities.  Municipal  bonds also may be issued in
connection  with the refunding of outstanding  obligations,  obtaining  funds to
lend  to  other  public  institutions,   and  for  general  operating  expenses.
Industrial development bonds are issued by or on behalf of public authorities to
obtain funds to provide various  privately-operated  facilities for business and
manufacturing,  housing,  sports,  pollution  control,  and  for  airport,  mass
transit, port and parking facilities.
    

The two principal  classifications  of municipal bonds are "general  obligation"
and "revenue."  General  obligation  bonds are secured by the issuer's pledge of
its full  faith,  credit  and taxing  power for the  payment  of  principal  and
interest.  Revenue  bonds are  payable  only from the  revenues  derived  from a
particular  facility or class of facilities or, in some cases, from the proceeds
of a special excise tax or other specific  revenue source.  Although  industrial
development bonds (IDBs) are issued by municipal authorities, they are generally
secured by the  revenues  derived  from  payments of the  industrial  user.  The
payment of principal and interest on IDBs is dependent  solely on the ability of
the  user  of the  facilities  financed  by the  bonds  to  meet  its  financial
obligations and the pledge, if any, of real and personal property so financed as
security for such payment.

Each Fund,  with  respect to 75% of its assets,  will not  purchase  any revenue
bonds if as a result of such  purchase  more than 5% of such Fund's assets would
be invested in the revenue bonds of a single issuer.

The Funds may also invest in municipal notes. Municipal notes generally are used
to provide for short-term  capital needs and generally  have  maturities of five
years or less. Municipal Notes include:

    1. Tax Anticipation Notes and Revenue  Anticipation  Notes. Tax anticipation
notes and revenue  anticipation  notes are issued to finance  short-term working
capital needs of political subdivisions.  Generally,  tax anticipation notes are
issued in anticipation of various tax revenues,  such as income,  sales and real
property  taxes,  and are payable  from these  specific  future  taxes.  Revenue
anticipation  notes are  issued in  expectation  of  receipt  of other  kinds of
revenue, such as grant or project revenues. Usually political subdivisions issue
notes combining the qualities of both tax and revenue anticipation notes.

    2. Bond Anticipation  Notes.  Bond anticipation  notes are issued to provide
interim financing until long-term financing can be arranged.  In most cases, the
long-term bonds then provide the money for the repayment of the notes.

Issues of municipal Commercial Paper typically represent short-term,  unsecured,
negotiable promissory notes. In most cases, municipal commercial paper is backed
by letters of credit,  lending agreements,  note repurchase  agreements or other
credit facility agreements offered by banks or other institutions.


                                       3
<PAGE>

   
Variable and Floating Rate Securities.  A Fund may purchase floating or variable
rate  securities,  including  participation  interests  therein.  Investments in
floating or variable rate securities provide that the rate of interest is either
pegged to money  market  rates or set as a specific  percentage  of a designated
base rate,  such as rates on Treasury  Bonds or Treasury Bills or the prime rate
of a major commercial bank. A floating rate or variable rate security  generally
provides that a Fund can demand payment of the obligation on short notice (daily
or weekly,  depending on the terms of the  obligation) at an amount equal to par
(face  value)  plus  accrued  interest.  In  Unusual  circumstances,  the amount
received may be more or less than the amount the Fund paid for the securities.

Variable  rate  securities  provide for a specified  periodic  adjustment in the
interest  rate,  while  floating  rate  securities  have an interest  rate which
changes  whenever  there is a  change  in the  designated  base  interest  rate.
Frequently  such  securities  are  secured by letters of credit or other  credit
support  arrangements  provided by banks. The quality of the underlying creditor
or of the  bank or  issuer,  as the  case  may be,  must  be  equivalent  to the
standards set forth with respect to taxable investments below.
    

The maturity of variable or floating rate obligations  (including  participation
interests  therein) is deemed to be the longer of (1) the notice period required
before a Fund is entitled to receive payment of the obligation  upon demand,  or
(2) the period remaining until the  obligation's  next interest rate adjustment.
If the Fund does not redeem the  obligation  through  the  demand  feature,  the
obligation  will mature on a specific  date,  which may range up to thirty years
from the date of its issuance.

Participation  Interests.  From time to time,  a Fund may  purchase  from banks,
participation  interests  in all or  part  of  specific  holdings  of  municipal
securities. A participation interest gives the Fund an undivided interest in the
municipal  security in the  proportion  that the Fund's  participation  interest
bears to the total principal  amount of the municipal  security and provides the
demand repurchase feature described above.  Participations are frequently backed
by an  irrevocable  letter of credit  or  guarantee  of a bank that the Fund has
determined meets its prescribed quality standards.  A Fund has the right to sell
the instrument  back to the bank and draw on the letter of credit on demand,  on
short notice,  for all or any part of the Fund's  participation  interest in the
municipal  security,  plus accrued  interest.  Each Fund intends to exercise the
demand under the letter of credit only (1) upon a default under the terms of the
documents of the municipal security, (2) as needed to provide liquidity in order
to meet  redemptions,  or (3) to maintain a high quality  investment  portfolio.
Banks  will  retain a service  and  letter of credit  fee and a fee for  issuing
repurchase  commitments in an amount equal to the excess of the interest paid on
the municipal  securities over the negotiated yield at which the instruments are
purchased by a Fund.  Participation  interests will be purchased only if, in the
opinion of counsel,  interest  income on such interests will be tax-exempt  when
distributed as dividends to shareholders of the Fund. The Funds currently do not
purchase participation interests and have no current intention of doing so.

When-Issued  Securities.  Each  Fund  may  purchase  municipal  securities  on a
"when-issued"  basis,  which means that  delivery of and payment for  securities
normally take place in less than 45 days after the date of the buyer's  purchase
commitment.  The  payment  obligation  and  the  interest  rate  on  when-issued
securities are each fixed at the time the purchase  commitment is made, although
no interest  accrues to a purchaser  prior to the  settlement of the purchase of
the  securities.  As a result,  the yields obtained and the market value of such
securities  may be  higher  or lower on the date  the  securities  are  actually
delivered to the buyer. A Fund will generally purchase a municipal security sold
on a when-issued  basis with the intention of actually  acquiring the securities
on the settlement date.

A separate account consisting of cash or high-grade liquid debt securities equal
to the amount of outstanding purchase commitments is established with the Fund's
custodian in connection with any purchase of when-issued securities. The account
is  marked to market  daily,  with  additional  cash or liquid  high-grade  debt
securities  added when  necessary.  A Fund  meets in  respective  obligation  to
purchase  when-issued  securities from outstanding cash balances,  sale of other
securities or,  although it would not normally expect to do so, form the sale of
the when-issued  securities themselves (which may have a market value greater or
lesser than the Fund's payment obligations).


                                       4
<PAGE>

Municipal  securities  purchased on a when-issued basis and the other securities
held in each Fund are subject to changes in market value based upon the public's
perception  of  the  creditworthiness  of  the  issuer  and  changes,   real  or
anticipated,  in the level of interest  rates  (which will  generally  result in
similar changes in value,  i.e., both  experiencing  appreciation  when interest
rates decline and  depreciation  when interest  rates rise).  Therefore,  to the
extent a Fund remains  substantially fully invested at the same time that it has
purchased securities on a when-issued basis, there will be a greater possibility
that the market  value of the Fund's  assets will vary.  Purchasing  a municipal
security on a when-issued  basis can involve a risk that the yields available in
the market when the  delivery  takes place may be higher than those  obtained on
the security purchased on a when-issued basis.

Standby  Commitments.  The Funds are authorized to acquire  standby  commitments
issued by banks with respect to securities they hold, although the Funds have no
present  intention  of  investing  any  assets  in  standby  commitments.  These
commitments  would obligate the seller of the standby  commitment to repurchase,
at a Fund's option, specified securities at a specified price.

   
The  price  which  a Fund  would  pay  for  municipal  securities  with  standby
commitments  generally  would be higher than the price which  otherwise would be
paid  for the  municipal  securities  alone,  and the  Fund  would  use  standby
commitments  solely to facilitate  portfolio  liquidity.  The standby commitment
generally  is for a shorter  term than the maturity of the security and does not
restrict in any way the Fund's right to dispose of or retain the security. There
is a risk that the seller of a standby  commitment may not be able to repurchase
the security  upon the exercise of the right to resell by the Fund.  To minimize
such risks,  each Fund is presently  authorized to acquire  standby  commitments
solely from banks deemed creditworthy. The Board of Trustees may, in the future,
consider  whether the Funds should be permitted to acquire  standby  commitments
from dealers.  Prior to investing in standby  commitments of dealers, a Fund, if
it  deems  necessary  based  upon  the  advice  of  counsel,  will  apply to the
Securities  and  Exchange  Commission  for an exemptive  order  relating to such
commitments  and the  valuation  thereof.  There  can be no  assurance  that the
Securities and Exchange Commission will issue such an order.

Standby  commitments  with  respect  to  portfolio  securities  of a  Fund  with
maturities of less than 60 days which are separate from the underlying portfolio
securities are not assigned a value. The cost of any such standby commitments is
carried as an unrealized loss from the time of purchase until it is exercised or
expires. Standby commitments with respect to portfolio securities of a Fund with
maturities of 60 days or more which are separate from the  underlying  portfolio
securities are valued at fair value as determined in accordance  with procedures
established by the Board of Trustees. The Board of Trustees would, in connection
with the determination of value of such a standby  commitment,  consider,  among
other factors, the creditworthiness of the writer of the standby commitment, the
duration of the  standby  commitment,  the dates on which or the periods  during
which the standby  commitment  may be  exercised  and the  applicable  rules and
regulations of the Securities and Exchange Commission.

Illiquid Securities. The Fund may invest up to 15% of its net assets in illiquid
securities,  including  restricted  securities  (i.e.,  securities  not  readily
marketable  without  registration  under the  Securities  Act of 1933 (the "1933
Act"))  and  other  securities  that are not  readily  marketable.  The Fund may
purchase  restricted  securities  that can be  offered  and  sold to  "qualified
institutional  buyers"  under Rule 144A of the 1933 Act, and the Fund's Board of
Trustees,  may determine,  when appropriate,  that specific Rule 144A securities
are liquid and not subject to the 15% limitation on illiquid securities.  Should
the Board of Trustees make this  determination,  it will  carefully  monitor the
security  (focusing  on such  factors,  among  others,  as trading  activity and
availability of information) to determine that the Rule 144A security  continues
to be liquid.  It is not  possible  to predict  with  assurance  exactly how the
market for Rule 144A securities will further  evolve.  This investment  practice
could have the effect of increasing the level of illiquidity in the Fund, if and
to the extent that qualified institutional buyers become for a time uninterested
in purchasing Rule 144A securities.
    

Borrowing.  Each Fund may borrow money only from banks and only for temporary or
emergency  purposes  (but not for the  purchase of portfolio  securities)  in an
amount  not in excess  of 10% of the  value of its total  assets at the time the
borrowing is made (not including the amount borrowed).  Permitted 


                                       5
<PAGE>

borrowings  may be secured or unsecured.  The Fund will not purchase  additional
portfolio  securities if the Fund has outstanding  borrowings in excess of 5% of
the value of its total assets.

Taxable Investments.  Under normal market conditions,  each Fund will attempt to
invest  100% and as a matter of  fundamental  policy will invest at least 80% of
the value of its net assets in  securities  the interest on which is exempt from
regular  federal income tax and California  personal  income tax. Such interest,
however, may be subject to the federal alternative minimum tax.

Under normal market conditions, temporary investments in taxable securities will
be limited as a matter of fundamental policy to 20% of the value of a Fund's net
assets.

Except as otherwise  specifically noted above, the Funds' investment  strategies
are not fundamental and a Fund, with the approval of the Board of Trustees,  may
change such strategies without the vote of shareholders.

Fund Policies

Each Fund is subject to fundamental  policies that place restrictions on certain
types of  investments.  These  policies  cannot be  changed  except by vote of a
majority of the outstanding voting securities of a Fund. Under these policies, a
Fund may not:

- -    Borrow  money,  except from banks for temporary  purposes  (such as meeting
     redemption  requests or for extraordinary or emergency purposes but not for
     the purchase of portfolio securities) in an amount not to exceed 10% of the
     value of its total assets at the time the borrowing is made (not  including
     the  amount  borrowed).  A Fund  will  not  purchase  additional  portfolio
     securities if such Fund has  outstanding  borrowings in excess of 5% of the
     value of its total assets;

- -    Mortgage or pledge any of its assets, except to secure permitted borrowings
     noted above;

- -    Invest more than 25% of total assets at market  value in any one  industry;
     except that municipal  securities and securities of the US Government,  its
     agencies and  instrumentality's are not considered an industry for purposes
     of this limitation;

- -    As to 50% of the  value of its total  assets,  purchase  securities  of any
     issuer if  immediately  thereafter  more than 5% of total  assets at market
     value would be invested in the  securities of any issuer  (except that this
     limitation  does not  apply  to  obligations  issued  or  guaranteed  as to
     principal   and  interest  by  the  US   Government   or  its  agencies  or
     instrumentality's);

   
- -    Invest  in  securities  issued  by other  investment  companies,  except in
     connection with a merger,  consolidation,  acquisition or reorganization or
     for the  purpose  of  hedging  the Fund's  obligations  under the  Deferred
     Compensation Plan For Directors;
    

- -    Purchase  or hold any real  estate,  except  that  the Fund may  invest  in
     securities secured by real estate or interests therein or issued by persons
     (other than real  estate  investment  trusts)  which deal in real estate or
     interests therein;

- -    Purchase  or  hold  the  securities  of any  issuer,  if to its  knowledge,
     trustees or officers of the Fund individually owning beneficially more than
     0.5% of the  securities of that issuer own in the aggregate more than 5% of
     such securities;

- -   Write or purchase put, call, straddle or spread options; purchase securities
    on margin or sell "short";  or underwrite  the  securities of other issuers,
    except that the Fund may be deemed an  underwriter  in  connection  with the
    purchase and sale of portfolio securities;

- -    Purchase or sell  commodities  or  commodity  contracts  including  futures
     contracts; or

- -    Make loans, except to the extent that the purchase of notes, bonds or other
     evidences of indebtedness or deposits with banks may be considered loans. 



                                       6
<PAGE>

A Fund  also  may  not  change  its  investment  objective  without  shareholder
approval.

Under the 1940 Act, a "vote of a majority of the outstanding  voting securities"
of a Fund means the  affirmative  vote of the lesser of (1) more than 50% of the
outstanding  shares  of the  Fund or (2) 67% or more of the  shares  of the Fund
present at a shareholders' meeting if more than 50% of the outstanding shares of
the Fund are represented at the meeting in person or by proxy.

Temporary Defensive Position

In  abnormal  market  conditions,  if,  in the  judgment  of a  Fund,  municipal
securities  satisfying a Fund's  investment  objectives may not be purchased,  a
Fund may, for defensive purposes, temporarily invest in instruments the interest
on which is exempt from regular  federal  income taxes,  but not state  personal
income taxes.  Such securities  would include those described under  "California
Municipal Securities" above that would otherwise meet the Fund's objectives.

Also, in abnormal market  conditions,  a Fund may invest on a temporary basis in
fixed-income securities,  the interest on which is subject to federal, state, or
local  income  taxes,  pending  the  investment  or  reinvestment  in  municipal
securities of the proceeds of sales of shares or sales of portfolio  securities,
in order to avoid the necessity of  liquidating  portfolio  investments  to meet
redemptions  of shares by  investors or where  market  conditions  due to rising
interest  rates  or  other  adverse  factors  warrant  temporary  investing  for
defensive  purposes.  Investments in taxable securities will be substantially in
securities  issued or guaranteed by the United States Government (such as bills,
notes and bonds), its agencies,  instrumentalities or authorities;  highly-rated
corporate  debt  securities  (rated Aa3 or better by Moody's or AA- or better by
S&P);  prime  commercial  paper  (rated P-1 by Moody's or A-1+/A-1 by S&P);  and
certificates  of deposit of the 100  largest  domestic  banks in terms of assets
which are  subject  to  regulatory  supervision  by the US  Government  or state
governments and the 50 largest foreign banks in terms of assets with branches or
agencies in the United States. Investments in certificates of deposit of foreign
banks and  foreign  branches of US banks may involve  certain  risks,  including
different regulation, use of different accounting procedures, political or other
economic developments, exchange controls, or possible seizure or nationalization
of foreign deposits.

Portfolio Turnover

Portfolio  transactions  will be undertaken  principally  to accomplish a Fund's
objective in relation to anticipated  movements in the general level of interest
rates  but a Fund may also  engage in  short-term  trading  consistent  with its
objective. Securities may be sold in anticipation of a market decline (a rise in
interest  rates) or  purchased  in  anticipation  of a market rise (a decline in
interest rates) and later sold. In addition,  a security may be sold and another
purchased  at  approximately  the  same  time to  take  advantage  of  what  the
investment  manager  believes to be a temporary  disparity  in the normal  yield
relationship between the two securities.

   
A Fund's  portfolio  turnover  rate is  calculated  by  dividing  the  lesser of
purchases  or sales of portfolio  securities  for the fiscal year by the monthly
average  of the  value  of the  portfolio  securities  owned  during  the  year.
Securities whose maturity or expiration date at the time of acquisition were one
year or less are excluded from the calculation. The portfolio turnover rates for
the High-Yield  Fund for the fiscal years ended September 30, 1998 and 1997 were
10.75% and 22.42%,  respectively.  The portfolio  turnover rates for the Quality
Fund for the fiscal  years  ended  September  30,  1998 and 1997 were 30.82% and
12.16%,  respectively.  The fluctuation in portfolio turnover rates of each Fund
resulted from conditions in the California  municipal market. A Fund's portfolio
turnover rate will not be a limiting  factor when the Fund deems it desirable to
sell or purchase securities.
    


                                       7
<PAGE>


                             Management of the Funds

Board of Trustees

The Board of Trustees provides broad supervision over the affairs of the Funds.

Management Information

Trustees  and  officers  of the Funds,  together  with  information  as to their
principal business occupations during the past five years, are shown below. Each
Trustee who is an "interested  person" of the Funds, as defined in the 1940 Act,
is indicated by an asterisk. Unless otherwise indicated, their addresses are 100
Park Avenue, New York, NY 10017.

<TABLE>
<CAPTION>
             Name,                                                                     Principal
           (Age) and                   Positions(s) Held                          Occupation(s) During
            Address                        with Fund                                  Past 5 Years
            -------                        ---------                                  ------------
<S>                              <C>                             <C>
      William C. Morris*         Trustee, Chairman of the        Chairman, J. & W. Seligman & Co. Incorporated,  Chairman and 
             (60)                Board, Chief Executive          Chief  Executive  Officer,  the Seligman Group of investment 
                                 Officer and Chairman of the     companies;   Chairman,   Seligman  Advisors,  Inc,  Seligman 
                                 Executive Committee             Services,  Inc., and Carbo Ceramics Inc.,  ceramic proppants 
                                                                 for oil and gas  industry;  Director,  Seligman  Data Corp., 
                                                                 Kerr-McGee  Corporation,  diversified  energy  company;  and 
                                                                 Sarah  Lawrence  College;  and a  Member  of  the  Board  of 
                                                                 Governors of the  Investment  Company  Institute.  Formerly, 
                                                                 Director,  Daniel  Industries Inc.,  manufacturer of oil and 
                                                                 gas metering equipment.                                      

   
        Brian T. Zino*           Trustee, President and Member   Director and President, J. & W. Seligman & Co. Incorporated;
             (46)                of the Executive Committee      President (with the exception of Seligman Quality  Municipal 
                                                                 Fund,  Inc. and Seligman Select  Municipal  Fund,  Inc.) and 
                                                                 Director  or  Trustee,  the  Seligman  Group  of  investment 
                                                                 companies;  Chairman,  Seligman  Data Corp.;  Director,  ICI
                                                                 Mutual  Insurance  Company,  Seligman  Advisors,  Inc.,  and
                                                                 Seligman Services, Inc.                                     
    

     Richard R. Schmaltz*        Trustee and Member of the       Director and Managing Director,  Director of Investments, J.
             (58)                Executive Committee             & W. Seligman & Co.  Incorporated;  Director or Trustee, the
                                                                 Seligman Group of investment companies;  Director,  Seligman
                                                                 Henderson  Co.,  and  Trustee  Emeritus  of  Colby  College.
                                                                 Formerly,  Director,  Investment  Research  at  Neuberger  &
                                                                 Berman from May 1993 to September 1996.                     
</TABLE>


                                       8
<PAGE>

<TABLE>
<CAPTION>
             Name,                                                                     Principal
           (Age) and                   Positions(s) Held                          Occupation(s) During
            Address                        with Fund                                  Past 5 Years
            -------                        ---------                                  ------------
<S>                              <C>                             <C>
        John R. Galvin                      Trustee              Dean,   Fletcher  School  of  Law  and  Diplomacy  at  Tufts 
             (69)                                                University;  Director  or  Trustee,  the  Seligman  Group of  
       Tufts University                                          investment companies; Chairman, American Council on Germany;  
        Packard Avenue,                                          a Governor of the Center for Creative Leadership;  Director;  
       Medford, MA 02155                                         Raytheon Co., electronics;  National Defense University; and  
                                                                 the  Institute  for Defense  Analysis.  Formerly,  Director,  
                                                                 USLIFE  Corporation;  Ambassador,  U.S. State Department for  
                                                                 negotiations in Bosnia; Distinguished Policy Analyst at Ohio 
                                                                 State  University  and  Olin   Distinguished   Professor  of 
                                                                 National  Security  Studies  at the United  States  Military 
                                                                 Academy.  From June, 1987 to June,  1992, he was the Supreme 
                                                                 Allied Commander, Europe and the Commander-in-Chief,  United 
                                                                 States European Command.                                     

       Alice S. Ilchman                     Trustee              Retired  President,  Sarah  Lawrence  College;  Director  or
             (63)                                                Trustee,   the  Seligman  Group  of  investment   companies;
      18 Highland Circle                                         Director,  the  Committee  for  Economic  Development;   and
     Bronxville, NY 10708                                        Chairman, The Rockefeller Foundation, charitable foundation.
                                                                 Formerly,  Trustee,  The  Markle  Foundation,  philanthropic
                                                                 organization;  and Director,  NYNEX,  telephone company; and
                                                                 International  Research  and  Exchange  Board,  intellectual
                                                                 exchanges.                                                  

   
       Frank A. McPherson                   Trustee              Retired  Chairman and Chief Executive  Officer of Kerr-McGee
              (65)                                               Corporation;  Director or  Trustee,  the  Seligman  Group of
   2601 Northwest Expressway,                                    investment companies; Director,  Kimberly-Clark Corporation,
            Suite 805E                                           consumer products; Bank of Oklahoma Holding Company; Baptist
   Oklahoma City, OK  73112                                      Medical Center;  Oklahoma Chapter of the Nature Conservancy;
                                                                 Oklahoma Medical Research Foundation;  and National Boys and
                                                                 Girls  Clubs  of  America;   and  Member  of  the   Business
                                                                 Roundtable  and  National   Petroleum   Council.   Formerly,
                                                                 Chairman,  Oklahoma  City  Public  Schools  Foundation;  and
                                                                 Director,  Federal Reserve System's Kansas City Reserve Bank
                                                                 and the Oklahoma City Chamber of Commerce.                  
    
</TABLE>



                                       9
<PAGE>

<TABLE>
<CAPTION>
             Name,                                                                     Principal
           (Age) and                   Positions(s) Held                          Occupation(s) During
            Address                        with Fund                                  Past 5 Years
            -------                        ---------                                  ------------
<S>                              <C>                             <C>
   
         John E. Merow                      Trustee              Retired  Chairman and Senior  Partner,  Sullivan & Cromwell,
             (69)                                                law  firm;  Director  or  Trustee,  the  Seligman  Group  of
       125 Broad Street,                                         investment  companies;  Director,  Commonwealth  Industries,
      New York, NY 10004                                         Inc.,  manufacturers of aluminum sheet products; the Foreign
                                                                 Policy  Association;  Municipal Art Society of New York; the
                                                                 U.S.  Council  for  International  Business;  and  New  York
                                                                 Presbyterian   Hospital;   Chairman,   American   Australian
                                                                 Association;  and New York Presbyterian  Healthcare Network,
                                                                 Inc.;  Vice-Chairman,  the  U.S.-New  Zealand  Council;  and
                                                                 Member of the American Law  Institute and Council on Foreign
                                                                 Relations.                                                  
    

        Betsy S. Michel                     Trustee              Attorney;   Director  or  Trustee,  the  Seligman  Group  of
             (56)                                                investment  companies;   Trustee,  the  Geraldine  R.  Dodge
         P.O. Box 449                                            Foundation, charitable foundation; and Chairman of the Board
      Gladstone, NJ 07934                                        of Trustees of St. George's School (Newport,  RI). Formerly,
                                                                 Director,  the National  Association of Independent  Schools
                                                                 (Washington, DC).                                           

        James C. Pitney                      Trustee             Retired  Partner,  Pitney,  Hardin,  Kipp & Szuch, law firm;
             (72)                                                Director  or  Trustee,  the  Seligman  Group  of  investment
 Park Avenue at Morris County,                                   companies.  Formerly,  Director,  Public Service  Enterprise
 P.O. Box 1945, Morristown, NJ                                   Group, public utility.                                      
             07962                                               

   
       James Q. Riordan                     Trustee              Director  or  Trustee,  the  Seligman  Group  of  investment 
             (71)                                                companies;  Director,  The Houston Exploration  Company; The  
       675 Third Avenue,                                         Brooklyn  Museum,  KeySpan  Energy  Corporation;  and Public  
          Suite 3004                                             Broadcasting   Service;   and  Trustee,  the  Committee  for  
      New York, NY 10017                                         Economic  Development.  Formerly,  Co-Chairman of the Policy  
                                                                 Council of the Tax Foundation;  Director,  Tesoro  Petroleum  
                                                                 Companies,  Inc. and Dow Jones & Company, Inc.; Director and 
                                                                 President,  Bekaert  Corporation;  and  Co-Chairman,   Mobil 
                                                                 Corporation.                                                 
    

       Robert L. Shafer                     Trustee              Retired Vice  President,  Pfizer Inc.;  Director or Trustee,
             (66)                                                the  Seligman  Group  of  investment  companies.   Formerly,
      96 Evergreen Avenue                                        Director, USLIFE Corporation.                               
        Rye, NY 10580                                                                                                     
</TABLE>


                                       10
<PAGE>

<TABLE>
<CAPTION>
             Name,                                                                     Principal
           (Age) and                   Positions(s) Held                          Occupation(s) During
            Address                        with Fund                                  Past 5 Years
            -------                        ---------                                  ------------
<S>                              <C>                             <C>
   
       James N. Whitson                      Trustee             Director and Consultant, Sammons Enterprises, Inc.; Director
             (63)                                                or Trustee,  the  Seligman  Group of  investment  companies;
    6606 Forestshire Drive                                       C-SPAN; and CommScope,  Inc. manufacturer of coaxial cables.
       Dallas, TX 75230                                          Formerly, Executive Vice President, Chief Operating Officer,
                                                                 Sammons  Enterprises,  Inc.; and Director,  Red Man Pipe and
                                                                 Supply Company, piping and other materials.                 
    

        Thomas G. Moles          Vice President and Senior       Director  and  Managing  Director,  J. & W.  Seligman  & Co.
              (56)               Portfolio Manager               Incorporated;  Vice President and Senior Portfolio  Manager,
                                                                 three other  open-end  investment  companies in the Seligman
                                                                 Group;  President  and Senior  Portfolio  Manager,  Seligman
                                                                 Quality  Municipal Fund, Inc. and Seligman Select  Municipal
                                                                 Fund, Inc., closed-end  investment companies;  and Director,
                                                                 Seligman Advisors, Inc. and Seligman Services, Inc.         

       Lawrence P. Vogel                 Vice President          Senior  Vice  President,  Finance,  J. & W.  Seligman  & Co.
             (42)                                                Incorporated,  Seligman  Advisors,  Inc.,  and Seligman Data
                                                                 Corp.;  Vice  President,  the Seligman  Group of  investment
                                                                 companies  and  Seligman  Services,   Inc.;  and  Treasurer,
                                                                 Seligman Henderson Co.                                      

   
        Frank J. Nasta                     Secretary             General Counsel,  Senior Vice President,  Law and Regulation 
             (34)                                                and   Corporate   Secretary,   J.  &  W.   Seligman   &  Co. 
                                                                 Incorporated;  Secretary,  the Seligman  Group of investment 
                                                                 companies,  Seligman Advisors, Inc., Seligman Henderson Co., 
                                                                 Seligman Services, Inc., and Seligman Data Corp.             
    
                                                                                                                              
         Thomas G. Rose                    Treasurer             Treasurer,  the Seligman  Group of investment  companies and
              (41)                                               Seligman Data Corp.                                         
</TABLE>

The  Executive  Committee  of the Board  acts on  behalf  of the  Board  between
meetings to determine the value of securities  and assets owned by the Funds for
which no market valuation is available,  and to elect or appoint officers of the
Funds to serve until the next meeting of the Board.

Trustees  and officers of the Funds are also  directors  and officers of some or
all of the other investment companies in the Seligman Group.


                                       11
<PAGE>

Compensation


   
<TABLE>
<CAPTION>
                                                                          Pension or             Total Compensation
                                                       Aggregate       Retirement Benefits         from Funds and
            Name and                                 Compensation      Accrued as Part of         Fund Complex Paid
       Position with Funds                          from Funds (1)       Fund Expenses           to Trustees (1)(2)
       -------------------                          --------------       -------------           ------------------
<S>                                                   <C>                    <C>                     <C>
William C. Morris, Trustee and Chairman                  N/A                 N/A                         N/A
Brian T. Zino, Trustee and President                     N/A                 N/A                         N/A
Richard R. Schmaltz, Trustee                             N/A                 N/A                         N/A
John R. Galvin, Trustee                               $1,292                 N/A                     $77,000
Alice S. Ilchman, Trustee                              1,148                 N/A                      70,000
Frank A. McPherson, Trustee                            1,249                 N/A                      75,000
John E. Merow, Trustee                                 1,230                 N/A                      74,000
Betsy S. Michel, Trustee                               1,292                 N/A                      77,000
James C. Pitney, Trustee                               1,189                 N/A                      72,000
James Q. Riordan, Trustee                              1,189                 N/A                      72,000
Robert L. Shafer, Trustee                              1,189                 N/A                      72,000
James N. Whitson, Trustee                              1,292(d)              N/A                      77,000(d)
</TABLE>
    

- ----------
(1)  For the Funds' fiscal year ended September 30, 1998.  Effective January 16,
     1998,  the per meeting fee for Trustees was  increased by $1,000,  which is
     allocated among all funds in the Fund Complex.
(2)  The Seligman Group of investment  companies consists of eighteen investment
     companies. (d) Deferred.

   
Seligman  Municipal  Series  Trust has a  compensation  arrangement  under which
outside  trustees may elect to defer  receiving their fees.  Seligman  Municipal
Series Trust has adopted a Deferred  Compensation Plan under which a trustee who
has  elected  deferral  of his or her fees may choose a rate of return  equal to
either (1) the interest rate on short-term  Treasury  bills,  or (2) the rate of
return  on the  shares of any of the  investment  companies  advised  by J. & W.
Seligman & Co. Incorporated, as designated by the trustee. The cost of such fees
and earnings is included in trustees'  fees and  expenses,  and the  accumulated
balance  thereof  is  included  in other  liabilities  in the  Funds'  financial
statements.  The total  amount of  deferred  compensation  (including  earnings)
payable in respect of the Funds to Mr.  Whitson  as of  September  30,  1998 was
$10,127. Messrs. Merow and Pitney no longer defer current compensation; however,
they have accrued  deferred  compensation in the amounts of $22,637 and $16,572,
respectively, as of September 30, 1998.

Each Fund may,  but is not  obligated  to,  purchase  shares of  Seligman  Group
investment  companies to hedge its  obligations in connection  with the Deferred
Compensation Plan.
    

Sales Charges

Class A shares of the Funds may be issued  without a sales charge to present and
retired directors,  trustees,  officers, employees (and their family members) of
the Funds,  the other  investment  companies in the Seligman Group,  and J. & W.
Seligman & Co.  Incorporated  and its affiliates.  Family members are defined to
include lineal descendents and lineal ancestors, siblings (and their spouses and
children) and any company or  organization  controlled by any of the  foregoing.
Such sales also may be made to employee  benefit  plans for such  persons and to
any investment advisory,  custodial, trust or other fiduciary account managed or
advised by J. & W. Seligman & Co. Incorporated or any affiliate. These sales may
be made for  investment  purposes  only,  and shares  may be resold  only to the
Funds.

Class A shares may be sold at net asset value to these  persons since such sales
require  less sales  effort and lower sales  related  expenses as compared  with
sales to the general public.



                                       12
<PAGE>

               Control Persons and Principal Holders of Securities

Control Persons

   
As of January 12, 1999, there was no person or persons who controlled any of the
Funds, either through significant ownership of Fund shares or any other means of
control.
    

Principal Holders

   
As of January 12, 1999, MLPF&S for the Sole Benefit of Its Customers,  Attn Fund
Administration,  4800 Deer Lake Drive East,  3rd Floor,  Jacksonville,  FL 32246
owned of record more than 5% of the outstanding  shares of a class of each Fund,
as follows:

                                                           Percentage of Total
                                                          Outstanding Shares of
         Fund                     Class                   the Class of the Fund
         ----                     -----                   ---------------------
     High-Yield Fund                A                             8.34%
     Quality Fund                   A                             7.57%
    

Management Ownership

   
Trustees  and  officers  of the  Funds  as a  group  owned  less  than 1% of the
outstanding  Class A shares of beneficial  interest of the High-Yield Fund as of
January  12,  1999.  As of the same date,  no  Trustees or officers of the Funds
owned  Class A shares of  beneficial  interest  of the  Quality  Fund or Class D
shares of beneficial interest of either Fund.
    

                     Investment Advisory and Other Services

   
Investment Manager
    

J. & W. Seligman & Co. Incorporated  (Seligman) manages the Funds. Seligman is a
successor  firm to an  investment  banking  business  founded  in 1864 which has
thereafter provided investment services to individuals,  families, institutions,
and  corporations.  On December 29, 1988, a majority of the  outstanding  voting
securities of Seligman was purchased by Mr. William C. Morris and a simultaneous
recapitalization  of Seligman  occurred.  See Appendix C for further  history of
Seligman.

All of the  officers of the Funds  listed  above are  officers or  employees  of
Seligman. Their affiliations with the Funds and with Seligman are provided under
their principal business occupations.

   
The Funds pay Seligman a management fee for its services,  calculated  daily and
payable  monthly.  The  management fee is equal to .50% per annum of each Fund's
average daily net assets. The following chart indicates the management fees paid
by each Fund as well as the  percentage  such  fees  represents  of each  Fund's
average daily net assets for the fiscal years ended  September  30, 1998,  1997,
and 1996.

                                                                 Percentage of
                             Fiscal Year       Management        Average Daily
       Fund                     Ended         Fee Paid( $)      Net Assets (%)
       ----                     -----         ------------      --------------

       High-Yield Fund         9/30/98          303,287               .50
                               9/30/97          266,730               .50
                               9/30/96          252,643               .50

       Quality Fund            9/30/98          442,776               .50
                               9/30/97          461,278               .50
                               9/30/96          483,123               .50
    


                                       13
<PAGE>

   
The Funds pay all of their  expenses  other  than  those  assumed  by  Seligman,
including brokerage  commissions,  if any, shareholder services and distribution
fees,  fees and  expenses  of  independent  attorneys  and  auditors,  taxes and
governmental fees, including fees and expenses of qualifying the Funds and their
shares under federal and state securities  laws, cost of stock  certificates and
expenses of  repurchase  or  redemption  of shares,  expenses  of  printing  and
distributing reports,  notices and proxy materials to shareholders,  expenses of
printing and filing  reports and other  documents  with  governmental  agencies,
expenses of  shareholders'  meetings,  expenses of corporate data processing and
related services,  shareholder record keeping and shareholder  account services,
fees and disbursements of transfer agents and custodians, expenses of disbursing
dividends and distributions,  fees and expenses of the Trustees of the Funds not
employed by or serving as a director of  Seligman or its  affiliates,  insurance
premiums and extraordinary expenses such as litigation expenses.  These expenses
are  allocated  between the Funds in a manner  determined  by the Trustees to be
fair and equitable.
    

The  Management  Agreement also provides that Seligman will not be liable to the
Funds for any error of judgment  or mistake of law, or for any loss  arising out
of any investment, or for any act or omission in performing its duties under the
Management  Agreement,   except  for  willful  misfeasance,   bad  faith,  gross
negligence,  or  reckless  disregard  of its  obligations  and duties  under the
Management Agreement.

Each Fund's Management  Agreement was unanimously  approved by the Trustees at a
Meeting  held on October 11, 1988 and was approved by the  shareholders  of each
Fund at a meeting held on December  15, 1988.  Each  Management  Agreement  will
continue in effect  until  December 31 of each year if (1) such  continuance  is
approved in the manner  required by the 1940 Act (i.e.,  by a vote of a majority
of the Trustees or of the  outstanding  voting  securities  of the Fund and by a
vote  of a  majority  of the  Trustees  who are not  parties  to the  Management
Agreement or interested persons of any such party) and (2) if Seligman shall not
have notified the Series at least 60 days prior to the  anniversary  date of the
previous  continuance  that it does not desire such  continuance.  A  Management
Agreement  may be  terminated by a Fund,  without  penalty,  on 60 days' written
notice  to  Seligman  and  will  terminate  automatically  in the  event  of its
assignment.  Each Fund has  agreed to change  its name upon  termination  of its
Management  Agreement if continued use of the name would cause  confusion in the
context of Seligman's business.

Officers,  directors  and  employees  of  Seligman  are  permitted  to engage in
personal securities transactions, subject to Seligman's Code of Ethics. The Code
of Ethics  proscribes  certain  practices  with  regard to  personal  securities
transactions and personal  dealings,  provides a framework for the reporting and
monitoring of personal securities transactions by Seligman's Compliance Officer,
and sets forth a  procedure  of  identifying,  for  disciplinary  action,  those
individuals who violate the Code of Ethics. The Code of Ethics prohibits each of
the  officers,  directors and employees  (including  all portfolio  managers) of
Seligman from purchasing or selling any security that the officer,  director, or
employee knows or believes (1) was  recommended by Seligman for purchase or sale
by any client,  including the Fund, within the preceding two weeks, (2) has been
reviewed by Seligman  for  possible  purchase or sale within the  preceding  two
weeks, (3) is being purchased or sold by any client,  (4) is being considered by
a research analyst,  (5) is being acquired in a private placement,  unless prior
approval has been obtained from Seligman's  Compliance  Officer, or (6) is being
acquired during an initial or secondary public offering. The Code of Ethics also
imposes a strict standard of confidentiality  and requires portfolio managers to
disclose  any  interest  they may have in the  securities  or issuers  that they
recommend for purchase by any client.

The Code of Ethics also  prohibits  (1) each  portfolio  manager or member of an
investment  team from  purchasing or selling any security  within seven calendar
days of the  purchase or sale of the security by a client's  account  (including
investment  company accounts) for which the portfolio manager or investment team
manages;  and (2) each employee from engaging in short-term  trading (a purchase
and sale or vice-versa  within 60 days). Any profit realized  pursuant to either
of these prohibitions must be disgorged.

Officers,  directors,  and  employees  are  required,  except under very limited
circumstances,  to engage in personal securities transactions through Seligman's
order  desk.  The order  desk  maintains  a list of  securities  that may not be
purchased due to a possible conflict with clients.  All officers,  directors and
employees are also  required to disclose all  securities  beneficially  owned by
them on December 31 of each year.


                                       14
<PAGE>

Principal Underwriter

   
Seligman Advisors,  Inc., (Seligman Advisors) an affiliate of Seligman, 100 Park
Avenue,  New York, New York 10017, acts as general  distributor of the shares of
the Funds and of the other mutual funds in the Seligman Group. Seligman Advisors
is an  "affiliated  person" (as defined in the 1940 Act) of  Seligman,  which is
itself an affiliated  person of the Funds.  Those  individuals  identified above
under "Management Information" of the Funds" as trustees or officers of both the
Funds and Seligman Advisors are affiliated persons of both entities.

Services Provided by the Investment Manager
    

Under the Management  Agreements,  each dated December 29, 1988,  subject to the
control of the Board of Trustees,  Seligman manages the investment of the assets
of each Fund,  including  making  purchases  and sales of  portfolio  securities
consistent with each Fund's investment objectives and policies,  and administers
their business and other affairs.  Seligman  provides the Funds with such office
space,  administrative  and other services and executive and other  personnel as
are necessary for Fund  operations.  Seligman  pays all of the  compensation  of
trustees of the Funds who are  employees or  consultants  of Seligman and of the
officers and employees of the Funds.  Seligman also provides  senior  management
for Seligman Data Corp., the Funds' shareholder service agent.

Service Agreements

There are no other management-related service contracts under which services are
provided to either of the Funds.

Other Investment Advice

No person or persons, other than directors,  officers, or employees of Seligman,
regularly advise either Fund with respect to its investments.

Dealer Reallowances

Dealers and financial  advisors receive a percentage of the initial sales charge
on sales of Class A shares of each Fund, as set forth below:

                                                                  Regular Dealer
                               Sales Charge       Sales Charge     Reallowance
                                as a % of         as a % of Net     As a % of
Amount of Purchase           Offering Price(1)  Amount Invested  Offering Price
- ------------------           -----------------  ---------------  --------------

Less than  $ 50,000              4.75%               4.99%            4.25%
$50,000  -  $ 99,999             4.00                4.17             3.50
$100,000  -  $249,999            3.50                3.63             3.00
$250,000  -  $499,999            2.50                2.56             2.25
$500,000  -  $999,999            2.00                2.04             1.75
$1,000,000  and over(2)           0                    0                0

(1)  "Offering  Price" is the amount that you actually  pay for Fund shares;  it
     includes the initial sales charge.
(2)  You will not pay a sales charge on purchases of $1 million or more, but you
     will be subject to a 1% CDSC if you sell your shares within 18 months.

   
Seligman Services,  Inc.  (Seligman  Services),  an affiliate of Seligman,  is a
limited  purpose  broker/dealer.   Seligman  Services  is  eligible  to  receive
commissions from certain sales of Fund shares. For the Fund's fiscal years ended
September 30, 1998, 1997, and 1996,  Seligman Services  received  commissions in
the following amounts:
    


                                       15
<PAGE>

   
Fund                                   Commissions Paid to SSI
- ----                                   -----------------------
                                   1998            1997           1996
                                   ----            ----           ----
High-Yield Fund                   $1,887          $ 495           $ 28
Quality Fund                       1,346          1,571          2,241
    


Rule 12b-1 Plan

Seligman  Municipal  Series  Trust has  adopted an  Administration,  Shareholder
Services and Distribution  Plan (12b-1 Plan) in accordance with Section 12(b) of
the 1940 Act and Rule 12b-1 thereunder.

   
Under the 12b-1 Plan, each Fund may pay to Seligman Advisors an  administration,
shareholder  services and  distribution fee in respect of the Fund's Class A and
Class D shares.  Payments under the 12b-1 Plan may include,  but are not limited
to: (1)  compensation  to securities  dealers and other  organizations  (Service
Organizations)  for  providing  distribution  assistance  with respect to assets
invested in the Fund; (2)  compensation to Service  Organizations  for providing
administration,  accounting and other shareholder  services with respect to Fund
shareholders;  and (3)  otherwise  promoting  the sale of  shares  of the  Fund,
including paying for the preparation of advertising and sales literature and the
printing and  distribution  of such  promotional  materials and  prospectuses to
prospective  investors  and  defraying  Seligman  Advisors'  costs  incurred  in
connection  with its  marketing  efforts  with  respect  to  shares of the Fund.
Seligman,  in its sole  discretion,  may also make similar  payments to Seligman
Advisors  from its own  resources,  which may  include the  management  fee that
Seligman  receives  from each  Fund.  Payments  made by each Fund under its Rule
12b-1 Plan are intended to be used to encourage  sales of such Fund,  as well as
to discourage redemptions.

Fees paid by each Fund under its 12b-1 Plan with  respect to any class of shares
may not be used to pay expenses incurred solely in respect of any other class or
any other Seligman fund. Expenses  attributable to more than one class of a Fund
will be allocated between the classes in accordance with a methodology  approved
by  the  Funds'  Board  of  Directors.   Each  Fund  may  participate  in  joint
distribution  activities  with other  Seligman  funds,  and the expenses of such
activities will be allocated among the applicable funds based on relative sales,
in accordance with a methodology approved by the Board.

Class A

Under the 12b-1 Plan, each Fund, with respect to Class A shares, is permitted to
pay quarterly to Seligman Advisors a service fee at an annual rate of up to .25%
of the average daily net asset value of the Class A shares.  These fees are used
by Seligman Advisors exclusively to make payments to Service Organizations which
have entered into agreements with Seligman Advisors.  Such Service Organizations
currently receive from Seligman Advisors a continuing  service fee of up to .10%
on an annual basis, payable quarterly,  of the average daily net assets of Class
A shares  attributable  to the  particular  Service  Organization  for providing
personal service and/or maintenance of shareholder accounts.  The fee payable to
Service Organizations from time to time shall, within such limits, be determined
by the  Directors  and may not be increased  from .10%  without  approval of the
Directors.  The Funds are not  obligated to pay  Seligman  Advisors for any such
costs it incurs in excess of the fee described  above.  No expenses  incurred in
one fiscal year by Seligman  Advisors  with  respect to Class A shares of a Fund
may be paid from Class A 12b-1 fees  received from that Fund in any other fiscal
year.  If the 12-b1 Plan is terminated in respect of Class A shares of any Fund,
no amounts  (other than amounts  accrued but not yet paid) would be owed by that
Fund to Seligman Advisors with respect to Class A shares.  The total amount paid
by each Fund to  Seligman  Advisors  in respect of Class A shares for the fiscal
year ended September 30, 1998 was as follows:

                                          Total            % of Average
             Fund                       Fees Paid           Net Assets
             ----                       ---------           ----------
             High-Yield Fund             $50,741               .09%
             Quality Fund                 79,348               .09
    


                                       16
<PAGE>

   
Class D 

Under the 12b-21 Plan, each Fund,  with respect to Class D shares,  pays monthly
to  Seligman  Advisors a 12b-1 fee at an annual  rate of up to 1% of the average
daily net asset value of Class D shares.  This fee is used by Seligman Advisors,
as  follows:  During  the first  year  following  the sale of Class D shares,  a
distribution fee of .75% of the average daily net assets attributable to Class D
shares is used, along with any CDSC proceeds, to (1) reimburse Seligman Advisors
for its payment at the time of sale of Class D shares of a .75% sales commission
to Service Organizations, and (2) pay for other distribution expenses, including
paying for the preparation of advertising and sales  literature and the printing
and distribution of such  promotional  materials and prospectuses to prospective
investors and other marketing costs of Seligman  Advisors.  In addition,  during
the first year following the sale of Class D shares, a service fee of up to .25%
of the average daily net assets  attributable  to such Class D shares is used to
reimburse  Seligman Advisors for its prepayment to Service  Organizations at the
time of sale of Class D shares of a  service  fee of up to .25% of the net asset
value of the Class D share sold (for  shareholder  services  to be  provided  to
Class D shareholders  over the course of the one year immediately  following the
sale). The payment to Seligman  Advisors is limited to amounts Seligman Advisors
actually  paid to Service  Organizations  at the time of sale as  service  fees.
After the initial one-year period following a sale of Class D shares, the entire
12b-1 fee  attributable to such Class D shares is paid to Service  Organizations
for providing  continuing  shareholder  services and distribution  assistance in
respect of assets  invested in each Fund.  The total amount paid by each Fund in
respect of Class D shares for the fiscal year ended September 30, 1998 was equal
to 1.00%  per annum of the  average  daily  net  assets  of Class D  shares,  as
follows:

                                                   Total
             Fund                                Fees Paid
             ----                                ---------
             High-Yield Fund                      $50,584
             Quality Fund                          19,565

The amounts expended by Seligman  Advisors in any one year with respect to Class
D shares of a Fund may exceed the 12b-1 fees paid by each Fund in that year. the
Fund's 12b-1 Plan permits expenses  incurred by Seligman  Advisers in respect of
Class D shares  in one  fiscal  year to be paid  from  Class D 12b-1  Plan  fees
received ; however,  in any fiscal year the Funds are not  obligated  to pay any
12b-1 fees in excess of the fees described above.

As of  September  30,  1998 there were  $18,087  and  $8,119,  respectively,  of
unreimbursed expenses incurred in respect of the High-Yield Fund and the Quality
Fund under the 12b-1 Plan with  respect to Class D shares which is equal to .28%
and .35%,  respectively,  of the net assets of Class D shares of the  High-Yield
Fund and the Quality Fund at September 30, 1998.

If the 12b-1  Plan is  terminated  in  respect  of Class D shares of a Fund,  no
amounts (other than amounts accrued but not yet paid) would be owed by that Fund
to Seligman Advisors with respect to Class D shares.

Payments made by the Funds under the 12b-1 Plan for fiscal year ended  September
30, 1998, were spent on the following activities in the following amounts:


                               Compensation to   Compensation to
     Fund/Class                 Underwriters      Broker/Dealers
     ----------                 ------------      --------------

     High-Yield Fund/A             $50,741
     High-Yield Fund/D             $21,095            $21,094

     Quality/A                     $79,348
     Quality/D                     $5,397             $14,168

The 12b-1  Plan was  approved  on July 16,  1992 by the  Trustees,  including  a
majority of the  Trustees  who are not  "interested  persons" (as defined in the
1940 Act) of the Funds and who have no direct or indirect  
    


                                       17
<PAGE>

financial  interest  in the  operation  of the  12b-1  Plan or in any  agreement
related  to the 12b-1  Plan  (the  "Qualified  Trustees")  and was  approved  by
shareholders of the Funds on November 23, 1992. The 12b-1 Plan became  effective
on January 1, 1993. Amendments to the 12b-1 Plan were approved in respect of the
Class D shares on November 18, 1993 by the Trustees, including a majority of the
Qualified  Trustees,  and became effective with respect to the Class D shares on
February 1, 1994.  The 12b-1 Plan will  continue in effect until  December 31 of
each year so long as such continuance is approved annually by a majority vote of
both the Trustees and the Qualified Trustees, cast in person at a meeting called
for the purpose of voting on such approval. The 12b-1 Plan may not be amended to
increase  materially  the  amounts  payable  under the  terms of the 12b-1  Plan
without the approval of a majority of the outstanding  voting securities of each
Fund and no  material  amendment  to the 12b-1 Plan may be made  except with the
approval  of a majority  of both the  Trustees  and the  Qualified  Trustees  in
accordance  with  the  applicable  provisions  of the  1940  Act and  the  rules
thereunder.

The 12b-1 Plan  requires  that the  Treasurer of the Funds shall  provide to the
Trustees,  and the Trustees shall review at least quarterly, a written report of
the amounts  expended (and purposes  therefor)  made under the 12b-1 Plan.  Rule
12b-1 also requires  that the  selection and  nomination of Trustees who are not
"interested persons" of the Funds be made by such disinterested Trustees.

   
Seligman  Services acts as a broker/dealer  of record for  shareholder  accounts
that do not have a designated  financial advisor and receives  compensation from
the Funds pursuant to the 12b-1 Plan for providing personal services and account
maintenance  to such accounts and other  distribution  services.  For the fiscal
years ended September 30, 1998,  1997, and 1996, SSI received  distribution  and
service fees from the Funds pursuant to the 12b-1 Plan, as follows:

                                   Distribution and Service Fees Paid to
                                              Seligman Services
                                              -----------------

          Fund                          1998           1997             1996
          ----                          ----           ----             ----
          High-Yield Fund             $1,597         $1,414           $1,592
          Quality                      2,602          2,688            2,753
    


                    Brokerage Allocation and Other Practices

Brokerage Transactions

   
For the fiscal years ended  September  30, 1998,  1997,  and 1996,  no brokerage
commissions were paid by either of the Funds. When two or more of the investment
companies in the Seligman Group or other investment advisory clients of Seligman
desire  to buy or sell  the  same  security  at the same  time,  the  securities
purchased or sold are allocated by Seligman in a manner believed to be equitable
to each. There may be possible  advantages or disadvantages of such transactions
with respect to price or the size of positions readily obtainable or saleable.
    

In  over-the-counter  markets,  the Funds deal with  responsible  primary market
makers unless a more favorable  execution or price is believed to be obtainable.
The  Funds may buy  securities  from or sell  securities  to  dealers  acting as
principal,   except  dealers  with  which  its  directors  and/or  officers  are
affiliated.

       

Commissions

For the fiscal years ended September 30, 1998, 1997, and 1996, the Funds did not
execute  any  portfolio  transactions  with,  and  therefore  did  not  pay  any
commissions  to, any broker  affiliated  with  either  the Funds,  Seligman,  or
Seligman Advisors.


                                       18
<PAGE>

       

Regular Broker-Dealers

   
During the  Funds'  fiscal  year ended  September  30,  1998,  none of the Funds
acquired  securities of its regular brokers or dealers (as defined in Rule 10b-1
under the 1940 Act) or of their parents.
    

               Shares of Beneficial Interest and Other Securities

Shares of Beneficial Interest

Seligman  Municipal  Series Trust is authorized to issue an unlimited  number of
full and fractional shares of beneficial interest,  par value $.001, in separate
series. To date, four series have been authorized,  the Funds being two of them.
Each Fund has two classes,  designated Class A and Class D shares. Each share of
a Fund's  Class A and  Class D  beneficial  interest  is  equal as to  earnings,
assets,  and voting  privileges,  except that each class bears its own  separate
distribution  and,  potentially,  certain other class expenses and has exclusive
voting  rights with respect to any matter to which a separate  vote of any class
is required by the 1940 Act or  Massachusetts  law.  Seligman  Municipal  Series
Trust has adopted a  multiclass  plan  pursuant to Rule 18f-3 under the 1940 Act
permitting  the issuance and sale of multiple  classes.  In accordance  with the
Declaration  of Trust,  the Board of  Trustees  may  authorize  the  creation of
additional  classes of  beneficial  interest  with such  characteristics  as are
permitted by the multiples plan and Rule 18f-3. The 1940 Act requires that where
more than one class exists,  each class must be preferred over all other classes
in respect of assets  specifically  allocated  to such  class.  All shares  have
noncumulative voting rights for the election of trustees. Each outstanding share
is fully paid and non-assessable,  and each is freely transferable. There are no
liquidation, conversion, or preemptive rights.



                                       19
<PAGE>

Other Securities

Seligman  Municipal  Series Trust has no  authorized  securities  other than its
shares of beneficial interest.


                   Purchase, Redemption, and Pricing of Shares

Purchase of Shares

Class A

Class A shares may be  purchased  at a price  equal to the next  determined  net
asset value per share, plus an initial sales charge.

Purchases  of Class A shares by a "single  person"  (as  defined  below)  may be
eligible for the following reductions in initial sales charges:

Volume  Discounts  are provided if the total  amount  being  invested in Class A
shares of a Fund  alone,  or in any  combination  of shares of the other  mutual
funds in the Seligman Group which are sold with an initial sales charge, reaches
levels indicated in the sales charge schedule set forth in the Prospectus.

The Right of  Accumulation  allows an  investor  to  combine  the  amount  being
invested  in Class A shares of a Fund and  shares of the other  Seligman  mutual
funds sold with an initial sales charge with the total net asset value of shares
of those mutual funds  already owned that were sold with an initial sales charge
and the total net asset value of shares of Seligman Cash  Management  Fund which
were acquired  through an exchange of shares of another  Seligman mutual fund on
which there was an initial  sales  charge at the time of  purchase to  determine
reduced  sales charges in accordance  with the schedule in the  prospectus.  The
value of the  shares  owned,  including  the value of shares  of  Seligman  Cash
Management  Fund  acquired in an exchange of shares of another  Seligman  mutual
fund on which there was an initial  sales charge at the time of purchase will be
taken into account in orders placed through a dealer,  however, only if Seligman
Advisors  is  notified  by an  investor  or a dealer of the amount  owned by the
investor  at  the  time  the  purchase  is  made  and  is  furnished  sufficient
information to permit confirmation.

A Letter of Intent allows an investor to purchase Class A shares over a 13-month
period at reduced  initial sales charges in accordance  with the schedule in the
Prospectus,  based on the  total  amount  of Class A shares of the Fund that the
letter states the investor intends to purchase plus the total net asset value of
shares that were sold with an initial sales charge of the other Seligman  mutual
funds  already  owned and the total net asset value of shares of  Seligman  Cash
Management  Fund which were  acquired  through an  exchange of shares of another
Seligman  mutual fund on which there was an initial  sales charge at the time of
purchase.  Reduced  sales  charges  also may apply to  purchases  made  within a
13-month  period starting up to 90 days before the date of execution of a letter
of intent.

   
CDSC Applicable to Class A Shares.  Class A shares purchased  without an initial
sales  charge  in  accordance  with the  sales  charge  schedule  in the  Funds'
Prospectus,  or pursuant to a Volume Discount, Right of Accumulation,  or Letter
of Intent  are  subject to a CDSC of 1% on  redemptions  of such  shares  within
eighteen months of purchase. Employee benefit plans eligible for net asset value
sales (as described  below) may be subject to a CDSC of 1% for  terminations  at
the plan level only, on redemptions of shares  purchased  within eighteen months
prior to plan  termination.  The 1% CDSC  will be  waived  on  shares  that were
purchased   through  Morgan  Stanley  Dean  Witter  &  Co.  by  certain  Chilean
institutional  investors (i.e. pension plans,  insurance  companies,  and mutual
funds). Upon redemption of such shares within an eighteen-month  period,  Morgan
Stanley Dean Witter will reimburse  Seligman  Advisors a pro rata portion of the
fee it received from Seligman Advisors at the time of sale of such shares.
    

See "CDSC  Waivers"  below for other  waivers which may be applicable to Class A
shares.


                                       20
<PAGE>

Persons  Entitled To  Reductions.  Reductions  in initial sales charges apply to
purchases  of Class A shares  by a "single  person,"  including  an  individual;
members of a family  unit  comprising  husband,  wife and minor  children;  or a
trustee or other fiduciary  purchasing for a single fiduciary account.  Employee
benefit plans qualified under Section 401 of the Internal  Revenue Code of 1986,
as amended,  organizations  tax exempt  under  Section  501(c)(3) or (13) of the
Internal  Revenue Code, and  non-qualified  employee  benefit plans that satisfy
uniform criteria are considered  "single persons" for this purpose.  The uniform
criteria are as follows:

     1.  Employees  must  authorize  the  employer,  if requested by a Fund,  to
receive in bulk and to distribute to each participant on a timely basis the Fund
Prospectus, reports, and other shareholder communications.

     2.  Employees  participating  in a plan will be  expected  to make  regular
periodic  investments (at least annually).  A participant who fails to make such
investments  may be dropped  from the plan by the employer or the Fund 12 months
and 30 days after the last regular investment in his account. In such event, the
dropped participant would lose the discount on share purchases to which the plan
might then be entitled.

     3. The employer  must solicit its employees  for  participation  in such an
employee  benefit plan or authorize  and assist an  investment  dealer in making
enrollment solicitations.

Eligible  Employee  Benefit Plans.  The table of sales charges in the Prospectus
applies to sales to "eligible  employee  benefit  plans," except that a Fund may
sell shares at net asset value to "eligible  employee  benefit plans" which have
at least (1) $500,000  invested in the Seligman  Group of mutual funds or (2) 50
eligible employees to whom such plan is made available.  Such sales must be made
in connection with a payroll  deduction  system of plan funding or other systems
acceptable  to  Seligman  Data  Corp.,  the Funds'  shareholder  service  agent.
"Eligible  employee benefit plan" means any plan or arrangement,  whether or not
tax qualified,  which provides for the purchase of Fund shares.  Sales of shares
to such plans must be made in connection with a payroll deduction system of plan
funding or other system acceptable to Seligman Data Corp.

Such  sales are  believed  to require  limited  sales  effort and  sales-related
expenses and  therefore  are made at net asset value.  Contributions  or account
information for plan  participation  also should be transmitted to Seligman Data
Corp.  by methods  which it  accepts.  Additional  information  about  "eligible
employee  benefit  plans" is  available  from  financial  advisors  or  Seligman
Advisors.

Further  Types of  Reductions.  Class A shares  may also be  issued  without  an
initial sales charge to any registered unit investment trust which is the issuer
of periodic payment plan certificates, the net proceeds of which are invested in
Fund shares;  to separate  accounts  established  and maintained by an insurance
company which are exempt from  registration  under Section  3(c)(11) of the 1940
Act; to registered  representatives  and employees  (and their spouses and minor
children) of any dealer that has a sales  agreement with Seligman  Advisors;  to
financial  institution  trust  departments;  to registered  investment  advisers
exercising  discretionary  investment  authority with respect to the purchase of
Fund shares; to accounts of financial institutions or broker/dealers that charge
account management fees,  provided Seligman or one of its affiliates has entered
into  an  agreement  with  respect  to  such  accounts;  pursuant  to  sponsored
arrangements with organizations  which make  recommendations to, or permit group
solicitations of, its employees,  members or participants in connection with the
purchase of shares of the Fund;  to other  investment  companies in the Seligman
Group in connection with a deferred fee arrangement for outside  directors;  and
to "eligible  employee benefit plans" which have at least (1) $500,000  invested
in the Seligman  mutual funds or (2) 50 eligible  employees to whom such plan is
made available.

Class D

Class D shares may be  purchased  at a price  equal to the next  determined  net
asset  value,  without  an initial  sales  charge.  However,  Class D shares are
subject to a CDSC of 1% if the shares are redeemed  


                                       21
<PAGE>

within one year of purchase,  charged as a  percentage  of the current net asset
value or the original purchase price, whichever is less.

Systematic  Withdrawals.  Class D shareholders who reinvest both their dividends
and capital gain distributions to purchase  additional shares of a Fund, may use
the Funds' Systematic Withdrawal Plan to withdraw up to 10 of the value of their
accounts per year without the imposition of a CDSC.  Account value is determined
as of the date the systematic withdrawals begin.

CDSC  Waivers.  The CDSC on Class D  shares  (and  certain  Class A  shares,  as
discussed above) will be waived or reduced in the following instances:

(1)  on  redemptions  following the death or  disability  (as defined in Section
     72(m)(7) of the  Internal  Revenue  Code) of a  shareholder  or  beneficial
     owner;

(2)  in connection with (1) distributions  from retirement plans qualified under
     Section  401(a) of the  Internal  Revenue  Code when such  redemptions  are
     necessary  to  make  distributions  to  plan  participants  (such  payments
     include,  but  are  not  limited  to,  death,  disability,  retirement,  or
     separation of service),  (2)  distributions  from a custodial account under
     Section  403(b)(7)  of the  Internal  Revenue  Code or an IRA due to death,
     disability,  minimum  distribution  requirements after attainment of age 70
     1/2 or, for accounts  established  prior to January 1, 1998,  attainment of
     age 59 1/2, and (3) a tax-free return of an excess contribution to an IRA;

(3)  in whole or in part, in connection  with shares sold to current and retired
     Directors of the Fund;

(4)  in whole or in part, in connection  with shares sold to any state,  county,
     or city or any instrumentality,  department,  authority, or agency thereof,
     which is prohibited by applicable  investment laws from paying a sales load
     or commission in connection with the purchase of any registered  investment
     management company;

(5)  in whole or in part, in connection with systematic withdrawals;

(6)  in connection with  participation  in the Merrill Lynch Small Market 401(k)
     Program.

If, with respect to a redemption of any Class A Class D shares sold by a dealer,
the CDSC is waived  because the  redemption  qualifies for a waiver as set forth
above,  the dealer shall remit to Seligman  Advisors  promptly  upon notice,  an
amount  equal to the  payment  or a  portion  of the  payment  made by  Seligman
Advisors at the time of sale of such shares.

Fund Reorganizations

Class A shares may be issued without an initial sales charge in connection  with
the acquisition of cash and securities owned by other investment companies.  Any
CDSC will be waived in connection with the redemption of shares of a Fund if the
Fund is combined with another  Seligman  mutual fund,  or in  connection  with a
similar reorganization transaction.

Payment in Securities.  In addition to cash, the Funds may accept  securities in
payment for Fund shares sold at the applicable  public offering price (net asset
value and, if applicable, any sales charge), although the Funds do not presently
intend to accept securities in payment for Fund shares.  Generally,  a Fund will
only consider  accepting  securities (l) to increase its holdings in a portfolio
security,  or (2) if  Seligman  determines  that the  offered  securities  are a
suitable  investment  for the  Fund and in a  sufficient  amount  for  efficient
management. Although no minimum has been established, it is expected that a Fund
would not  accept  securities  with a value of less than  $100,000  per issue in
payment for shares. A Fund may reject in whole or in part offers to pay for Fund
shares with securities, may require partial payment in cash for applicable sales
charges, and may discontinue  accepting securities as payment for Fund shares at
any time without  notice.  The Funds will not accept  restricted  securities  in
payment  for  shares.  The Funds will value  accepted  securities  in the manner
provided for valuing portfolio securities.


                                       22
<PAGE>

Offering Price

When you buy or sell Fund shares, you do so at the Class's net asset value (NAV)
next calculated  after Seligman  Advisors  accepts your request.  Any applicable
sales charge will be added to the purchase price for Class A shares.

NAV per share of each class of a Fund is  determined  as of the close of regular
trading on the New York Stock Exchange  (normally,  4:00 p.m.  Eastern time), on
each day that the NYSE is open for business. The NYSE is currently closed on New
Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good Friday,  Memorial
Day,  Independence  Day, Labor Day,  Thanksgiving Day, and Christmas Day. A Fund
will  also  determine  NAV for  each  class  on each  day in  which  there  is a
sufficient degree of trading in the Fund's portfolio  securities that the NAV of
Fund shares might be materially affected.  NAV per share for a class is computed
by dividing such class's share of the value of the net assets of the Fund (i.e.,
the value of its assets less  liabilities)  by the total  number of  outstanding
shares of such class.  All expenses of the Fund,  including the management  fee,
are accrued daily and taken into account for the purpose of determining NAV. The
NAV of Class D shares will  generally be lower than the NAV of Class A shares as
a result of the higher 12b-1 fees with  respect to such shares.  It is expected,
however,  that the net asset  value per  share of the two  classes  will tend to
converge  immediately  after the  recording of  dividends,  which will differ by
approximately  the amount of the  distribution  and other class expenses accrual
differential between the classes.

The  securities  in  which  the  Funds  invest  are  traded   primarily  in  the
over-the-counter  market.  Municipal  securities and other  short-term  holdings
maturing in more than 60 days are valued on the basis of quotations  provided by
an independent pricing service, approved by the Trustees, which uses information
with respect to  transactions  in bonds,  quotations  from bond dealers,  market
transactions  in  comparable   securities  and  various   relationships  between
securities in determining  value. In the absence of such quotations,  fair value
will be  determined  in  accordance  with  procedures  approved by the Trustees.
Short-term holdings having remaining maturities of 60 days or less are generally
valued at amortized cost.

Generally, trading in certain securities such as municipal securities, corporate
bonds, US Government  securities,  and money market instruments is substantially
completed  each day at various times prior to the close of the NYSE.  The values
of such  securities  used in determining  the net asset value of a Fund's shares
are computed as of such times.

Specimen Price Make-Up

Under the  current  distribution  arrangements  between  the Funds and  Seligman
Advisors,  Class A shares are sold with a maximum  initial sales charge of 4.75%
and Class D shares are sold at NAV1.  Using each  Class's NAV at  September  30,
1998, the maximum offering price of the Funds' shares is as follows:

                                     Class A

                          NAV          Maximum Sales Charge      Offering Price
Fund                   Per Share    (4.75% of Offering Price)       to Public
- ----                   ---------    -------------------------       ---------

High-Yield Fund         $6.80                 $.34                    $7.14
Quality Fund             7.21                  .36                     7.57


                                     Class D

                                      NAV and Offering
           Fund                      Price Per Share(1)
           ----                      ------------------
           High-Yield Fund                  $6.80
           Quality Fund                      7.19

- ---------------
(1)  Class D shares are subject to a CDSC of 1% on  redemptions  within one year
     of purchase.


                                       23
<PAGE>

Redemption in Kind

The  procedures  for selling Fund shares under  ordinary  circumstances  are set
forth in the Prospectus. In unusual circumstances,  payment may be postponed, or
the right of  redemption  postponed  for more than seven  days,  if the  orderly
liquidation  of  portfolio  securities  is  prevented  by  the  closing  of,  or
restricted  trading  on, the NYSE  during  periods of  emergency,  or such other
periods  as ordered by the  Securities  and  Exchange  Commission.  Under  these
circumstances, redemption proceeds may be made in securities. If payment is made
in securities,  a shareholder may incur brokerage  expenses in converting  these
securities to cash.

                              Taxation of the Funds

Each of the Funds is treated as a separate  corporation  for federal  income tax
purposes. As a result, determinations of net investment income,  exempt-interest
dividends and net long-term  and  short-term  capital gain and loss will be made
separately for each Fund.

Each of the Funds is qualified and intends to continue to qualify as a regulated
investment  company under  Subchapter M of the Internal  Revenue Code.  For each
year so qualified, a Fund will not be subject to federal income taxes on its net
investment  income and capital gains, if any,  realized during any taxable year,
which it distributes to its shareholders,  provided that at least 90% of its net
investment   income  and  net  short-term   capital  gains  are  distributed  to
shareholders each year.

Qualification as a regulated  investment company under the Internal Revenue Code
requires among other things, that (1) at least 90% of the annual gross income of
a Fund be derived from dividends,  interest, payments with respect to securities
loans and gains  from the sale or other  disposition  of stocks,  securities  or
currencies,  or other income  (including  but not limited to gains from options,
futures, or forward contracts) derived with respect to its business of investing
in such stocks, securities or currencies;  (2) and a Fund diversify its holdings
so that, at the end of each quarter of the taxable year, (i) at least 50% of the
market  value  of the  Fund's  assets  is  represented  by cash,  US  Government
securities  and other  securities  limited  in  respect  of any one issuer to an
amount  not  greater  than 5% of the Fund's  assets  and 10% of the  outstanding
voting securities of such issuer, and (ii) not more than 25% of the value of its
assets is invested in the securities of any one issuer (other than US Government
securities).

Federal Income Taxes

If, at the end of each  quarter of its  taxable  year,  at least 50% of a Fund's
total assets is invested in obligations  exempt from regular federal income tax,
the Fund will be eligible to pay dividends that are  excludable by  shareholders
from gross income for regular  federal income tax purposes.  The total amount of
such  exempt  interest  dividends  paid by a Fund  cannot  exceed  the amount of
federally  tax-exempt  interest  received  by the Fund  during the year less any
expenses allocable to the Fund.

Distributions  of net capital gains (i.e.,  the excess of net long-term  capital
gains over any net  short-term  losses) are taxable as long-term  capital  gain,
whether  received in cash or invested in  additional  shares,  regardless of how
long the shares have been held by a shareholder,  except that the portion of net
capital gains  representing  accrued market  discount on tax-exempt  obligations
acquired  after April 30, 1993 will be taxable as  ordinary  income.  Individual
shareholders  will be subject to federal  tax on  distributions  of net  capital
gains at a maximum rate of 20% if designated as derived from the Fund's  capital
gains from property held for more than one year. Net Capital gain of a corporate
shareholder is taxed at the same rate as ordinary income.  Distributions  from a
Fund's other  investment  income (other than exempt interest  dividends) or from
net realized  short-term gain will taxable to  shareholders as ordinary  income,
whether  received  in cash  or  invested  in  additional  shares.  Distributions
generally will not be eligible for the dividends  received  deduction allowed to
corporate  shareholders.  Shareholders  receiving  distributions  in the form of
additional  shares  issued by a Fund will be  treated  for  federal  income  tax
purposes as having received a distribution in an amount equal to the fair market
value on the date of distribution of the shares received.


                                       24
<PAGE>

Interest on  indebtedness  incurred or  continued to purchase or carry shares of
any Fund will not be  deductible  for federal  income tax purposes to the extent
that the Fund's distributions are exempt from federal income tax.

Any gain or loss  realized  upon a sale or  redemption  of shares in a Fund by a
shareholder  who is not a dealer in  securities  will  generally be treated as a
long-term  capital  gain or loss if the shares  have been held for more than one
year and otherwise as a short-term capital gain or loss. Individual shareholders
will be subject to federal  income tax on net capital gains at a maximum rate of
20% in  respect of shares  held for more than one year.  Net  capital  gain of a
corporate shareholder is taxed at the same rate as ordinary income.  However, if
shares on which a long-term  capital  gain  distribution  has been  received are
subsequently  sold or redeemed  and such shares have been held for six months or
less, any loss realized will be treated as long-term  capital loss to the extent
that it offsets the long-term capital gain  distribution.  In addition,  no loss
will be allowed on the sale or other  disposition of shares of a Fund if, within
a period  beginning  30 days  before  the date of such sale or  disposition  and
ending 30 days after such date, the holder acquires  (including  shares acquired
through dividend  reinvestment)  securities that are substantially  identical to
the shares of the Fund.

In  determining  gain or loss on  shares  of a Fund  that are sold or  exchanged
within 90 days after acquisition,  a shareholder generally will not be permitted
to  include  in the tax basis  attributable  to such  shares  the  sales  charge
incurred in acquiring such shares to the extent of any  subsequent  reduction of
the sales charge by reason of the Exchange or Reinstatement Privilege offered by
the Fund. Any sales charge not taken into account in  determining  the tax basis
of shares sold or exchanged  within 90 days after  acquisition  will be added to
the  shareholder's  tax basis in the shares acquired pursuant to the Exchange or
Reinstatement Privilege.

   
Shareholders  are urged to consult their tax advisors  concerning  the effect of
federal income taxes in their individual circumstances.  In particular,  persons
who may be  "substantial  users" (or "related  person" of substantial  users) of
facilities  financed by industrial  development  bonds or private activity bonds
should consult the tax advisors before purchasing shares of any Fund.
    

California Taxes

   
In the opinion of Sullivan & Cromwell,  counsel to the Funds,  provided  that at
the end of each  quarter of its taxable year at least 50% of the total assets of
the High-Yield Fund or Quality Fund consist of federally tax-exempt  obligations
of the State of California and its political subdivisions ("California Municipal
Securities"), shareholders of each such Fund who are subject to California State
taxation on dividends will not be subject to California personal income taxes on
dividends from that Fund  attributable to interest received by each such Fund on
California Municipal Securities as well as on certain other federally tax-exempt
obligations  the  interest on which is exempt from  California  personal  income
taxes.  To the extent  that the  distributions  are derived  from other  income,
including  long- or short-term  capital gains,  such  distributions  will not be
exempt from California personal income taxation, and, further to the extent that
they constitute long-term capital gain dividends they will be taxed as long-term
gain to a shareholder.
    

Interest on  indebtedness  incurred or  continued to purchase or carry shares of
the  High-Yield  Fund or  Quality  Fund will not be  deductible  for  California
personal  income tax purposes to the extent such Fund  distributions  are exempt
from California personal income tax.

   
Prospective  investors should be aware that an investment in these Funds may not
be suitable for persons who are not  residents of the State of California or who
do not receive income subject to income taxes of the State.
    

Unless a shareholder includes a certified taxpayer identification number (social
security number for  individuals) on the account  application and certifies that
the shareholder is not subject to backup withholding,  the Funds are required to
withhold  and remit to the US  Treasury  a portion  of  distributions  and other
reportable  payments to the shareholder.  The rate of backup withholding is 31%.
Shareholders should be aware that, under regulations promulgated by the Internal
Revenue  Service,  a Fund may be 


                                       25
<PAGE>

fined  $50   annually   for  each   account  for  which  a  certified   taxpayer
identification number is not provided. In the event that such a fine is imposed,
the Fund may  charge a service  fee of up to $50 that may be  deducted  from the
shareholder's account and offset against any undistributed dividends and capital
gain distributions.  The Funds also reserve the right to close any account which
does not have a certified taxpayer identification number.

                                  Underwriters

Distribution of Securities

Seligman   Municipal  Fund  Series  and  Seligman  Advisors  are  parties  to  a
Distributing  Agreement dated January 1, 1993 under which Seligman Advisors acts
as the  exclusive  agent  for  distribution  of shares  of the  Funds.  Seligman
Advisors  accepts  orders for the  purchase  of Fund  shares,  which are offered
continuously.  As  general  distributor  of  the  Funds'  shares  of  beneficial
interest, Seligman Advisors allows reallowances to all dealers on sales of Class
A shares,  as set forth above under  "Dealer  Reallowances."  Seligman  Advisors
retains the balance of sales charges and any CDSCs paid by investors.

   
Total sales charges paid by  shareholders of Class A shares of the Funds for the
fiscal years ended  September  30, 1998,  1997,  and 1996 are shown below.  Also
shown are the amounts of Class A sales  charges  that were  retained by Seligman
Advisors:

                                      1998

                             Total Sales Charges Paid    Amount of Class A Sales
                                  by Shareholders         Charges Retained by
Fund                             On Class A Shares          Seligman Advisors
- ----                             -----------------          -----------------
High-Yield Fund                       $137,920                    $17,349
Quality Fund                            99,647                     11,984


                                      1997

                             Total Sales Charges Paid    Amount of Class A Sales
                                  by Shareholders         Charges Retained by
Fund                             On Class A Shares          Seligman Advisors
- ----                             -----------------          -----------------
High-Yield Fund                       $146,934                    $17,268
Quality Fund                            55,181                      6,928


                                      1996

                             Total Sales Charges Paid    Amount of Class A Sales
                                  by Shareholders         Charges Retained by
Fund                             On Class A Shares          Seligman Advisors
- ----                             -----------------          -----------------
High-Yield Fund                       $114,640                    $14,028
Quality Fund                           118,847                     14,194
    



                                       26
<PAGE>

Compensation

   
Seligman Advisors received the following commissions and other compensation from
the Funds during its fiscal year ended September 30, 1998:

<TABLE>
<CAPTION>
                                               Compensation on
                         Net Underwriting      Redemptions and
                          Discounts and          Repurchases
                           Commissions         CDSC on Class A
                          (Class A Sales         and Class D           Brokerage              Other
Fund                    Charges Retained)         Retained)           Commissions          Compensation
- ----                    -----------------         ---------           -----------          ------------
<S>                          <C>                     <C>                   <C>                  <C>
High-Yield Fund              $17,349                 $6,508                $0                   $0
Quality Fund                  11,984                    939                 0                    0
</TABLE>
    

Other Payments

Seligman  Advisors shall pay  broker/dealers,  from its own resources,  a fee on
purchases of Class A shares of  $1,000,000  or more (NAV sales),  calculated  as
follows:  1.00% of NAV sales up to but not  including  $2  million;  .80% of NAV
sales from $2 million up to but not including $3 million; .50% of NAV sales from
$3 million up to but not  including  $5  million;  and .25% of NAV sales from $5
million and above.  The calculation of the fee will be based on assets held by a
"single  person,"  including an individual,  members of a family unit comprising
husband, wife and minor children purchasing securities for their own account, or
a trustee or other fiduciary purchasing for a single fiduciary account or single
trust.  Purchases made by a trustee or other  fiduciary for a fiduciary  account
may not be  aggregated  purchases  made on  behalf  of any  other  fiduciary  or
individual account.

   
Seligman Advisors shall also pay broker/dealers,  from its own resources,  a fee
on assets of certain  investments in Class A shares of the Seligman mutual funds
participating  in an "eligible  employee  benefit plan" that are attributable to
the particular broker/dealer. The shares eligible for the fee are those on which
an initial sales charge was not paid because either the  participating  eligible
employee benefit plan has at least (1) $500,000  invested in the Seligman mutual
funds or (2) 50 eligible employees to whom such plan is made available.  Class A
shares  representing  only an initial  purchase of Seligman Cash Management Fund
are not eligible for the fee. Such shares will become  eligible for the fee once
they are exchanged for shares of another  Seligman  mutual fund.  The payment is
based on  cumulative  sales  for each Plan  during a single  calendar  year,  or
portion thereof.  The payment  schedule,  for each calendar year, is as follows:
1.00% of sales up to but not including $2 million; .80% of sales from $2 million
up to but not including $3 million;  .50% of sales from $3 million up to but not
including $5 million; and .25% of sales from $5 million and above.
    

Seligman  Advisors may from time to time assist  dealers by, among other things,
providing  sales  literature  to, and  holding  informational  programs  for the
benefit  of,  dealers'  registered   representatives.   Dealers  may  limit  the
participation of registered  representatives in such  informational  programs by
means of sales  incentive  programs which may require the sale of minimum dollar
amounts of shares of Seligman mutual funds.  Seligman  Advisors may from time to
time pay a bonus or other  incentive to dealers that sell shares of the Seligman
mutual funds. In some instances, these bonuses or incentives may be offered only
to certain dealers which employ registered  representatives who have sold or may
sell a  significant  amount of shares of the Fund and/or  certain  other  mutual
funds managed by Seligman during a specified period of time. Such bonus or other
incentive may take the form of payment for travel expenses,  including  lodging,
incurred in connection with trips taken by qualifying registered representatives
and members of their families to places within or outside the United States. The
cost to Seligman  Advisors of such promotional  activities and payments shall be
consistent  with the rules of the National  Association  of Securities  Dealers,
Inc., as then in effect.



                                       27
<PAGE>

                         Calculation of Performance Data

Class A

   
The  annualized  yield for the 30-day  period ended  September  30, 1998 for the
Class A shares of the High-Yield Fund and the Quality Fund were 3.94% and 3.74%,
respectively.  The  annualized  yield was  computed  by  dividing  a Fund's  net
investment  income per share  earned  during this  30-day  period by the maximum
offering price per share (i.e.,  the net asset value plus the maximum sales load
of 4.75% of the net amount  invested) on September 30, 1998,  which was the last
day of this period.  The average number of Class A shares of the High-Yield Fund
and the Quality Fund was 8,530,049 and 12,134,701,  respectively,  which was the
average  daily number of shares  outstanding  during the 30-day period that were
eligible to receive  dividends.  Income was  computed by totaling  the  interest
earned on all debt  obligations  during the 30-day period and  subtracting  from
that amount the total of all recurring  expenses incurred during the period. The
30-day yield was then annualized on a bond-equivalent basis assuming semi-annual
reinvestment and compounding of net investment income.

The tax  equivalent  annualized  yields for the Class A shares of the High-Yield
Fund and the Quality Fund for the 30-day  period ended  September  30, 1998 were
7.19% and 6.83%, respectively.  The tax equivalent annualized yield was computed
by first computing the annualized yield as discussed above.  Then the portion of
the yield  attributable to securities the income of which was exempt for federal
and state income tax purposes was determined. This portion of the yield was then
divided by one minus  45.22%  (which  assumes the maximum  combined  federal and
state income tax rate for individual  taxpayers that are subject to California's
personal  income  taxes).  Then the small portion of the yield  attributable  to
securities  the income of which was exempt only for federal  income tax purposes
was  determined.  This  portion of the yield was then divided by one minus 39.6%
(39.6%  being  the  assumed  maximum  federal  income  tax rate  for  individual
taxpayers). These two calculations were then added to the portion of the Class A
shares' yield,  if any, that was  attributable to securities the income of which
was not tax-exempt.

The average  annual total  returns for the one-year  period ended  September 30,
1998 for the Class A shares of the  High-Yield  Fund and the  Quality  Fund were
3.30%  and  3.49%,  respectively.  The  average  annual  total  returns  for the
five-year  period  ended  September  30,  1998  for the  Class A  shares  of the
High-Yield  Fund and the Quality  Fund were 5.49% and 4.80%,  respectively.  The
average  annual total returns for the ten-year  period ended  September 30, 1998
for the Class A shares of the  High-Yield  Fund and the Quality  Fund were 7.46%
and 7.53%, respectively.  These returns were computed by assuming a hypothetical
initial payment of $1,000 in Class A shares of each Fund. From this $1,000,  the
maximum sales load of $47.50 (4.75% of public offering  price) was deducted.  It
was then  assumed that all of the  dividends  and  distributions  by each Fund's
Class A shares  over the  relevant  time  period  were  reinvested.  It was then
assumed that at the end of the one-year period,  the five-year  period,  and the
ten-year period of each Fund, the entire amount was redeemed. The average annual
total return was then calculated by determining the annual rate required for the
initial  payment  to grow to the amount  which  would  have been  received  upon
redemption (i.e., the average annual compound rate of return).

Class D

The  annualized  yields for the 30-day  period ended  September  30, 1998 of the
Class D shares of the High-Yield Fund and the Quality Fund were 3.25% and 3.06%,
respectively.  The  annualized  yield  was  computed  as for  Class A shares  by
dividing a Fund's net  investment  income per share  earned  during  this 30-day
period by the maximum  offering  price per share (i.e.,  the net asset value) on
September 30, 1998 which was the last day of this period.  The average number of
Class D shares of the  High-Yield  Fund and the  Quality  Fund was  939,129  and
313,646, respectively,  which was the average daily number of shares outstanding
during the 30-day  period that were  eligible to receive  dividends.  Income was
computed by totaling  the  interest  earned on all debt  obligations  during the
30-day  period  and  subtracting  from that  amount  the total of all  recurring
expenses  incurred during the period.  The 30-day yield was then annualized on a
bond-equivalent  basis assuming semi-annual  reinvestment and compounding of net
investment income.
    

                                       28
<PAGE>

   
The tax equivalent  annualized  yields for the 30-day period ended September 30,
1998 for the Class D shares of the  High-Yield  Fund and the  Quality  Fund were
5.93% and 5.59%, respectively.  The tax equivalent annualized yield was computed
as discussed above for Class A shares.

The average annual total returns for the Class D shares of the  High-Yield  Fund
and the Quality Fund for the one-year period ended September 30, 1998 were 6.47%
and 6.71%,  respectively.  The average  annual total return for the period since
inception  through  September 30, 1998 for the  High-Yield  Fund and the Quality
Fund were 5.48% and 4.77%, respectively. These returns were computed by assuming
a hypothetical initial payment of $1,000 in Class D shares of each Fund and that
all of the  dividends and  distributions  by each Fund's Class D shares over the
relevant time period were reinvested. It was then assumed that at the end of the
one-year  period and the period since  inception of each Fund, the entire amount
was redeemed, subtracting the 1% CDSC, if applicable.

The tables below illustrate the total returns on a $1,000  investment in each of
the Fund's Class A and Class D shares for the ten years ended September 30, 1998
or from a Class's inception through September 30, 1998,  assuming  investment of
all dividends and capital gain distributions.
    



                                       29
<PAGE>

                                     Class A
<TABLE>
<CAPTION>
       Fund/              Value of          Value of                         Total Value
        Year              Initial         Capital Gain       Value of             Of              Total
       Ended(1)        Investment(2)     Distributions       Dividends      Investment(2)     Return(1)(3)
       --------        -------------     -------------       ---------      -------------     ------------
<S>                         <C>                 <C>             <C>             <C>                <C>   
     High-Yield
      9/30/89               $ 966                $9              $69            $1,044
      9/30/90                 939                26              138             1,103
      9/30/91                 988                28              225             1,241
      9/30/92               1,010                31              311             1,352
      9/30/93               1,023                73              401             1,497
      9/30/94                 958                86              459             1,503
      9/30/95                 983                89              564             1,636
      9/30/96                 988                95              659             1,742
      9/30/97               1,004               123              767             1,894
   
      9/30/98               1,033               136              886             2,055             105.42%
    

      Quality
      9/30/89               $ 980                $1              $66            $1,047
      9/30/90                 942                19              130             1,091
      9/30/91               1,007                27              214             1,248
      9/30/92               1,038                31              298             1,367
      9/30/93               1,103                57              397             1,557
      9/30/94                 968                81              423             1,472
      9/30/95               1,007               100              525             1,632
      9/30/96               1,022               104              620             1,746
      9/30/97               1,059               108              734             1,901
   
      9/30/98               1,092               121              853             2,066             106.61%
    

</TABLE>


                                     Class D

<TABLE>
<CAPTION>
       Fund/              Value of          Value of                         Total Value
        Year              Initial         Capital Gain       Value of             Of              Total
       Ended(1)        Investment(2)     Distributions       Dividends      Investment(2)     Return(1)(3)
       --------        -------------     -------------       ---------      -------------     ------------
<S>                         <C>               <C>               <C>              <C>               <C>   
     High-Yield
      9/30/94               $ 946             $ ---              $29             $ 975
      9/30/95                 971               ---               80             1,051
      9/30/96                 975                 4              130             1,109
      9/30/97                 992                20              182             1,194
   
      9/30/98               1,020                27              236             1,238              28,27%
    

      Quality
      9/30/94               $ 895             $ ---              $25             $ 920
      9/30/95                 929                10               69             1,008
      9/30/96                 945                12              114             1,071
      9/30/97                 978                12              164             1,154
   
      9/30/98               1,009                18              216             1,243              24.28%
    
</TABLE>

- ----------
(1)  For the ten-year  period ended  September 30, 1998 for Class A shares;  and
     from commencement of operations for Class D shares on February 1, 1994.

   
(2)  The "Value of Initial  Investment"  as of the date  indicated  reflects the
     effect of the maximum  sales charge and CDSC, if  applicable,  assumes that
     all  dividends  and  capital  gain  distributions  were taken in cash,  and
     reflects  changes in the net asset value of the shares  purchased  with the
     hypothetical  initial investment.  "Total Value of Investment" reflects the
     effect of the CDSC, if applicable,  and assumes investment of all dividends
     and capital gain distributions.
    

(3)  Total  return  for  each  Class  of a Fund  is  calculated  by  assuming  a
     hypothetical  initial  investment  of $1,000 at the beginning of the period
     specified,  subtracting  the  maximum  sales load or CDSC,  if  applicable;
     determining total value of all dividends and distributions  that would have
     been paid during the period on such shares  assuming  that each dividend or
     distribution  was  invested  in  additional  shares  at  net  asset  value;
     calculating the total value of the investment at the end of the period; and
     finally,  by dividing the difference between the amount of the hypothetical
     initial  investment at the beginning of the period and its value at the end
     of the period by the amount of the hypothetical initial investment.


                                       30
<PAGE>

   
Each Fund's total  returns and average  annual total  returns for Class A shares
quoted  above do not reflect the  deduction  of 12b-1 fees for periods  prior to
January 1, 1993,  because the 12b-1 Plan was  implemented on that date. If these
fees were reflected, the performance results presented would have been lower.
    

                              Financial Statements

The Annual Report to  Shareholders  of Seligman  Municipal  Series Trust for the
fiscal year ended  September 30, 1998 contains a schedule of the  investments of
each  Fund  as of  September  30,  1998,  as  well as  certain  other  financial
information as of that date. The financial  statements and notes included in the
Annual Report,  and the Independent  Auditors' Report thereon,  are incorporated
herein by reference.  The Annual Report will be furnished,  without  charge,  to
investors who request copies of this SAI.

                               General Information

The Trustees are  authorized to classify or  reclassify  and issue any shares of
beneficial  interest  of the  Trust  into any  number of other  classes  without
further action by  shareholders.  The 1940 Act requires that where more than one
class exists,  each class must be preferred over all other classes in respect of
assets specifically allocated to such class.

As a general  matter,  the Trust will not hold  annual or other  meetings of the
shareholders.  This is because the Declaration of Trust provides for shareholder
voting only (a) for the election or removal of one or more Trustees if a meeting
is  called  for that  purpose,  (b) with  respect  to any  contract  as to which
shareholder  approval  is  required  by the 1940 Act,  (c) with  respect  to any
termination or reorganization of the Trust or any series, including the Fund, to
the extent and as provided in the Declaration of Trust,  (d) with respect to any
amendment of the  Declaration of Trust (other than amendments  establishing  and
designating  new  series,  abolishing  series  when  there are no units  thereof
outstanding, changing the name of the Trust or the name of any series, supplying
any omission,  curing any ambiguity or curing,  correcting or supplementing  any
provision  thereof which is  internally  inconsistent  with any other  provision
thereof  or which is  defective  or  inconsistent  with the 1940 Act or with the
requirements of the Code, or applicable regulations for the Fund's obtaining the
most  favorable   treatment   thereunder   available  to  regulated   investment
companies),  which  amendments  require  approval  by a  majority  of the Shares
entitled to vote, (e) to the same extent as the  stockholders of a Massachusetts
business corporation as to whether or not a court action,  proceeding,  or claim
should or should not be brought or maintained  derivatively or as a class action
on  behalf  of the  Trust  or the  shareholders,  and (f) with  respect  to such
additional matters relating to the Trust as may be required by the 1940 Act, the
Declaration of Trust,  the By-laws of the Trust,  any  registration of the Trust
with the Securities and Exchange  Commission (the "Commission") or any state, or
as the Trustees may consider  necessary or desirable.  Each Trustee serves until
the next meeting of shareholders,  if any, called for the purpose of considering
the election or  reelection  of such Trustee or of a successor to such  Trustee,
and until the election and  qualification  of his successor,  if any, elected at
such meeting, or until such Trustee sooner dies, resigns,  retires or is removed
by the shareholders or two-thirds of the Trustees.

The shareholders of the Trust have the right, upon the declaration in writing or
vote of more than  two-thirds  of the Trust's  outstanding  shares,  to remove a
Trustee. The Trustees will call a meeting of shareholders to vote on the removal
of a Trustee  upon the written  request of the record  holders of ten percent of
its shares.  In addition,  whenever ten or more  shareholders of record who have
been such for at least six months  preceding  the date of  application,  and who
hold in the aggregate either shares having a net asset value of at least $25,000
or at least 1 per centum of the  outstanding  shares,  whichever is less,  shall
apply to the  Trustees in writing,  stating that they wish to  communicate  with
other  shareholders  with a view to  obtaining  signatures  to a  request  for a
meeting for the purpose of voting upon the question of removal of any Trustee or
Trustees and accompanied by a form of communication  and request which they wish
to transmit,  the Trustee  shall within five business days after receipt of such
application  either: (1) afford to such applicants access to a list of the names
and addresses of all  shareholders as recorded on the books of the Trust; or (2)
inform such applicants as to the  approximate  number of shareholders of record,
and the approximate cost of mailing to them the proposed  communication and form
of requests.  If the Trustees elect to follow the latter  course,  the Trustees,
upon the  written  request of such  applicants,  


                                       31
<PAGE>

accompanied  by a tender  of the  material  to be mailed  and of the  reasonable
expenses of mailing,  shall, with reasonable  promptness,  mail such material to
all  shareholders of record at their addresses as recorded on the books,  unless
within  five  business  days after such tender the  Trustees  shall mail to such
applicants and file with the Commission, together with a copy of the material to
be mailed, a written  statement signed by at least a majority of the Trustees to
the effect that in their opinion either such material contains untrue statements
of fact or omits to  state  facts  necessary  to make the  statements  contained
therein  not  misleading,  or would  be in  violation  of  applicable  law,  and
specifying  the basis of such opinion.  After  opportunity  for hearing upon the
objections  specified in the written statement so filed, the Commission may, and
if demanded by the Trustees or by such applicants  shall,  enter an order either
sustaining one or more of such objections or refusing to sustain any of them. If
the Commission  shall enter an order refusing to sustain any of such objections,
or if, after the entry of an order  sustaining  one or more of such  objections,
the Commission  shall find,  after notice and opportunity for hearing,  that all
objections  so sustained  have been met, and shall enter an order so  declaring,
the  Trustees  shall  mail  copies of such  material  to all  shareholders  with
reasonable  promptness  after the entry of such  order and the  renewal  of such
tender.

Rule 18f-2 under the 1940 Act provides that any matter  required to be submitted
by the provisions of the 1940 Act or applicable state law, or otherwise,  to the
holders of the outstanding  voting  securities of an investment  company such as
the  Trust  shall  not be deemed to have  been  effectively  acted  upon  unless
approved by the holders of a majority of the  outstanding  shares of each series
affected by such  matter.  Rule 18f-2  further  provides  that a series shall be
deemed to be affected by a matter  unless it is clear that the interests of each
series in the matter are  substantially  identical  or that the matter  does not
significantly affect any interest of such series.  However, the Rule exempts the
selection  of  independent  public   accountants,   the  approval  of  principal
distributing  contracts  and the election of trustees  from the separate  voting
requirements of the Rule.

The  shareholders  of  a  Massachusetts  business  trust  could,  under  certain
circumstances,  be held  personally  liable  as  partners  for its  obligations.
However,  the Declaration of Trust contains an express disclaimer of shareholder
liability for acts or  obligations of the Trust.  The  Declaration of Trust also
provides  for  indemnification  and  reimbursement  of expenses out of a series'
assets  for any  shareholder  held  personally  liable for  obligations  of such
series.

Custodian.  Investors  Fiduciary Trust Company,  801 Pennsylvania,  Kansas City,
Missouri 64105, serves as custodian for the Funds. It also maintains,  under the
general  supervision of Seligman,  the accounting records and determines the net
asset value for the Funds.

   
Auditors.  Deloitte & Touche LLP,  independent  auditors,  have been selected as
auditors of the Funds. Their address is Two World Financial Center, New York, NY
10281.
    



                                       32
<PAGE>

                                   Appendix A

Moody's Investors Service, Inc. ("Moody's")
Municipal Bonds

     Aaa:  Municipal  bonds  which are  rated  Aaa are  judged to be of the best
quality.  They carry the smallest degree of investment risk.  Interest  payments
are protected by a large or by an  exceptionally  stable margin and principal is
secure. While the various protective elements are likely to change, such changes
as can be  visualized  are most  unlikely  to impair  the  fundamentally  strong
position of such issues.

     Aa:  Municipal bonds which are rated Aa are judged to be of high quality by
all  standards.  Together  with the Aaa group they  comprise  what are generally
known as high grade bonds.  They are rated lower than Aaa bonds because  margins
of protection may not be as large or  fluctuation of protective  elements may be
of  greater  amplitude  or there may be other  elements  present  which make the
long-term risks appear somewhat larger than in Aaa securities.

     A:  Municipal  bonds which are rated A possess  many  favorable  investment
attributes and are to be considered as upper medium grade  obligations.  Factors
giving  security to principal and interest are considered  adequate but elements
may be present which  suggest a  susceptibility  to  impairment  sometime in the
future.

     Baa:  Municipal  bonds which are rated Baa are  considered  as medium grade
obligations,  i.e.,  they are  neither  highly  protected  nor  poorly  secured.
Interest  payments and principal  security  appear  adequate for the present but
certain  protective  elements  may  be  characteristically  lacking  or  may  be
unreliable over any great length of time. Such bonds lack outstanding investment
characteristics and in fact may have speculative characteristics as well.

     Ba:  Municipal  bonds  which  are rated Ba are  judged to have  speculative
elements;  their  future  cannot  be  considered  as  well-assured.   Often  the
protection of interest and principal payments may be very moderate,  and thereby
not  well  safeguarded  during  other  good  and  bad  times  over  the  future.
Uncertainty of position characterizes bonds in this class.

     B: Municipal bonds which are rated B generally lack  characteristics of the
desirable  investment.  Assurance  of  interest  and  principal  payments  or of
maintenance  of other terms of the contract  over any long period of time may be
small.

     Caa: Municipal bonds which are rated Caa are of poor standing.  Such issues
may be in default or there may be present  elements  of danger  with  respect to
principal or interest.

     Ca:  Municipal  bonds which are rated Ca  represent  obligations  which are
speculative  in high  degree.  Such  issues  are often in  default or have other
marked shortcomings.

     C:  Municipal  bonds which are rated C are the lowest rated class of bonds,
and issues so rated can be regarded as having  extremely  poor prospects of ever
attaining any real investment standing.

     Moody's  applies  numerical  modifiers (1, 2 and 3) in each generic  rating
classification  from Aa  through B in its  corporate  bond  rating  system.  The
modifier 1 indicates  that the  security  ranks in the higher end of its generic
rating  category;  modifier 2  indicates  a mid-range  ranking;  and  modifier 3
indicates that the issuer ranks in the lower end of its generic rating category.

Municipal Notes

     Moody's  ratings  for  Municipal  notes  and  other  short-term  loans  are
designated Moody's Investment Grade (MIG). This distinction is in recognition of
the differences  between short-term and long-term credit risk. Loans bearing the
designation  MIG 1 are  of the  best  quality,  enjoying  strong  protection  by
established  cash  flows of funds  for their  servicing  or by  established  and
broad-based access to the market for refinancing.  Loans bearing the designation
MIG 2 are of high  quality,  with margins of  protection  


                                       33
<PAGE>

ample  although  not so large  as in the  preceding  group.  Loans  bearing  the
designation MIG 3 are of favorable quality, with all security elements accounted
for but lacking the undeniable  strength of the preceding grades.  Market access
for  refinancing in  particular,  is likely to be less well  established.  Notes
bearing the  designation  MIG 4 are judged to be of adequate  quality,  carrying
specific  risk  but  having  protection  commonly  regarded  as  required  of an
investment security and not distinctly or predominantly speculative.

Commercial Paper

     Moody's  Commercial Paper Ratings are opinions of the ability of issuers to
repay  punctually  promissory  senior  debt  obligations  not having an original
maturity in excess of one year.  Issuers rated  "Prime-1" or "P-1" indicates the
highest quality repayment capacity of the rated issue.

     The  designation  "Prime-2" or "P-2" indicates that the issuer has a strong
capacity for repayment of senior  short-term  promissory  obligations.  Earnings
trends and  coverage  ratios,  while sound,  may be more  subject to  variation.
Capitalization characteristics, while still appropriate, may be more affected by
external conditions. Ample alternative liquidity is maintained.

     The  designation  "Prime-3"  or  "P-3"  indicates  that the  issuer  has an
acceptable  capacity for repayment of  short-term  promissory  obligations.  The
effect  of  industry   characteristics  and  market  compositions  may  be  more
pronounced.  Variability in earnings and  profitability may result in changes in
the  level of debt  protection  measurements  and may  require  relatively  high
financial leverage.
Adequate alternate liquidity is maintained.

     Issues  rated  "Not  Prime"  do not fall  within  any of the  Prime  rating
categories.

Standard & Poor's Corporation ("S&P")
Municipal Bonds

     AAA: Municipal bonds rated AAA are highest grade  obligations.  Capacity to
pay interest and repay principal is extremely strong.

     AA:  Municipal  bonds  rated AA have a very high  degree of safety and very
strong capacity to pay interest and repay principal and differs from the highest
rated issues only in small degree.

     A: Municipal bonds rated A are regarded as upper medium grade.  They have a
strong  degree  of safety  and  capacity  to pay  interest  and repay  principal
although  they are  somewhat  more  susceptible  in the long term to the adverse
effects of changes in circumstances and economic  conditions than debt in higher
rated categories.

     BBB: Municipal bonds rated BBB are regarded as having a satisfactory degree
of safety and  capacity  to pay  interest  and re-pay  principal.  Whereas  they
normally exhibit adequate protection parameters,  adverse economic conditions or
changing  circumstances  are more  likely to lead to a weakened  capacity to pay
interest  and  re-pay  principal  for bonds in this  category  than for bonds in
higher rated categories.

     BB, B, CCC, CC:  Municipal  bonds rated BB, B, CCC and CC are regarded,  on
balance,  as predominantly  speculative with respect to capacity to pay interest
and pre-pay principal in accordance with the terms of the bond. BB indicates the
lowest degree of  speculation  and CC the highest degree of  speculation.  While
such bonds will likely have some quality and protective  characteristics,  these
are  outweighed  by  large  uncertainties  or major  risk  exposure  to  adverse
conditions.

     C: The rating C is reserved  for income bonds on which no interest is being
paid.

     D: Bonds rated D are in default,  and payment of interest and/or  repayment
of principal is in arrears.


                                       34
<PAGE>

     NR: Indicates that no rating has been requested, that there is insufficient
information  on which to base a  rating  or that S&P does not rate a  particular
type of bond as a matter of policy.

Municipal Notes

     SP-1: Very strong or strong  capacity to pay principal and interest.  Those
issues determined to possess overwhelming safety characteristics will be given a
plus (+) designation.

     SP-2:  Satisfactory capacity to pay principal and interest.

Commercial Paper

     S&P Commercial  Paper ratings are current  assessments of the likelihood of
timely payment of debts having an original maturity of no more than 365 days.

     A-1:  The A-1  designation  indicates  that the degree of safety  regarding
timely payment is very strong.

     A-2:  Capacity  for  timely  payment  on issues  with this  designation  is
satisfactory.  However,  the  relative  degree  of  safety is not as high as for
issues designated "A-1".

     A-3: Issues  carrying this  designation  have adequate  capacity for timely
payment. They are, however, more vulnerable to the adverse effects of changes in
circumstances than obligations carrying the higher designations.

     B: Issues rated "B" are regarded as having only a speculative  capacity for
timely payment.

     C: This rating is assigned to short-term debt  obligations  with a doubtful
capacity of payment.

     D:  Debt rated "D" is in payment default.

     NR: Indicates that no rating has been requested, that there is insufficient
information  on which to base a  rating  or that S&P does not rate a  particular
type of bond as a matter of policy.

     The ratings  assigned by S&P may be modified by the  addition of a plus (+)
or minus (-) sign to show relative standing within its major rating categories.


                                       35
<PAGE>

                                   Appendix B

   
      RISK FACTORS REGARDING INVESTMENTS IN CALIFORNIA MUNICIPAL SECURITIES

The following information as to certain California considerations is provided to
investors in view of the Fund's  policy of investing  primarily in securities of
California  issuers.  Such information is derived from public official documents
relating to  securities  offerings of  California  issuers  which are  generally
available  to  investors.  The Fund has no  reason  to  believe  that any of the
statements   in  such  public   official   documents  are  untrue  but  has  not
independently  verified such statements.  The following information  constitutes
only a brief summary of the  information in such public  official  documents and
does not purport to be a complete  description of all  considerations  regarding
investment in California municipal securities.

California's  economy, the largest among the 50 states and one of the largest in
the world, has major components in agriculture,  manufacturing, high technology,
trade,   entertainment,   tourism,   construction  and  services.   Since  1994,
California's  economy  has  been  performing  strongly  after  suffering  a deep
recession  between 1990 and 1994.  The State's July 1, 1997  population  of over
32.9 million  represents  over 12 percent of the total United States  population
with total employment of approximately 15 million.

STATE INDEBTEDNESS

General

The State Treasurer is responsible for the sale of debt obligations of the State
and its  various  authorities  and  agencies.  The  State  has  always  paid the
principal of and interest on its general  obligation bonds,  general  obligation
commercial  paper,  lease-purchase  debt and short-term  obligations,  including
revenue anticipation notes and revenue anticipation warrants, when due.

Capital Facilities Financing

General  Obligation  Bonds - The State  Constitution  prohibits  the creation of
general obligation  indebtedness of the State unless a bond law is approved by a
majority of the  electorate  voting at a general  election or a direct  primary.
General  obligation  bond acts provide  that debt service on general  obligation
bonds shall be appropriated  annually from the General Fund and all debt service
on  general  obligation  bonds is paid from the  General  Fund.  Under the State
Constitution,  debt service on general  obligation bonds is the second charge to
the General  Fund after the  application  of moneys in the  General  Fund to the
support of the public school system and public institutions of higher education.
Certain  general  obligation bond programs  receive  revenues from sources other
than the sale of bonds or the investment of bond proceeds.

As of  November 1, 1998,  the State had  outstanding  $18,698,941,000  aggregate
principal  amount of  long-term  general  obligation  bonds,  and  unused  voter
authorizations  for the future issuance of  $5,726,874,000  of long-term general
obligation bonds.

At the November 3, 1998 election,  voters approved a bond measure  ("Proposition
1A") totaling $9.2 billion for public school  construction  and renovation,  and
for higher education facilities. Not more than half the total bond authorization
from  Proposition  1A can be issued  (including  bonds in the form of commercial
paper) before June 30, 2000.  Proposition  1A also  encourages  the Treasurer to
sell the bonds in a manner such that the ratio of State debt  service to General
Fund revenue does not exceed 6 percent.

Commercial  Paper  Program - Pursuant to the terms of the bank credit  agreement
presently in effect supporting the general obligation  commercial paper program,
not more than $1.5 billion of general  obligation  commercial paper notes may be
outstanding  at any time;  this  amount may be  increased  or  decreased  in the
future.  Commercial  paper  notes are deemed  issued upon  authorization  by the
respective Finance Committees, whether or not such notes are actually issued. As
of November 1, 1998, the Finance Committees had authorized the issuance of up to
$2,743,744,000  of  commercial  paper  notes;  as 
    


                                       36
<PAGE>

   
of that date $  815,250,000  aggregate  principal  amount of general  obligation
commercial paper notes was actually issued and outstanding.

Lease-Purchase  Debt - In addition to general obligation bonds, the State builds
and acquires capital  facilities  through the use of  lease-purchase  borrowing.
Under these arrangements,  the State Public Works Board,  another State or local
agency or a joint powers  authority  issues bonds to pay for the construction of
facilities  such as  office  buildings,  university  buildings  or  correctional
institutions.  For  purposes  of  this  section,   "lease-purchase  debt"  means
principally bonds or certificates of participation for capital  facilities where
the rental  payments  providing  the  security  are a direct or indirect  charge
against the General  Fund and also  includes  revenue  bonds for a State  energy
efficiency  program  secured by payments  made by various State  agencies  under
energy service contracts.  The State had $6,519,924,397  General  Fund-supported
lease-purchase  debt  outstanding  at November 1, 1998.  The State  Public Works
Board,  which is  authorized  to sell lease revenue  bonds,  had  $1,461,263,000
authorized  and unissued as of November 1, 1998.  Also,  as of that date certain
joint powers authorities were authorized to issue approximately  $197,610,000 of
revenue bonds to be secured by State leases.

Non-Recourse  Debt - Revenue  bonds  represent  obligations  payable  from State
revenue-producing  enterprises  and  projects,  which are not  payable  from the
General Fund, and conduit obligations payable only from revenues paid by private
users of facilities  financed by the revenue bonds. The enterprises and projects
include  transportation  projects,  various  public works  projects,  public and
private educational facilities, housing, health facilities and pollution control
facilities.  There are 17 agencies and  authorities  authorized to issue revenue
obligations (excluding  lease-purchase debt). State agencies and authorities had
$24,597,625,404  aggregate principal amount of revenue bonds and notes which are
non-recourse to the General Fund outstanding as of September 30, 1998.

Cash Flow Borrowings

As  part  of its  cash  management  program,  the  State  has  regularly  issued
short-term  obligations to meet cash flow needs.  Between spring 1992 and summer
1994,  the State had depended  upon  external  borrowing,  including  borrowings
extending  into the  subsequent  fiscal year, to meet its cash needs,  including
repayments of maturing  Notes and  Warrants.  The State has not had to resort to
such cross-year borrowing after the 1994-95 Fiscal Year.

The State  issued  $1.7  billion of revenue  anticipation  notes for the 1998-99
Fiscal Year to mature on June 30, 1999.

The State's fiscal year begins on July 1 and ends on June 30. The State operates
on a budget basis, using a modified accrual system of accounting,  with revenues
credited  in  the  period  in  which  they  are  measurable  and  available  and
expenditures  debited in the period in which the  corresponding  liabilities are
incurred.

The General Fund

The  moneys of the  State  are  segregated  into the  General  Fund and over 900
Special  Funds,  including  Bond,  Trust and Pension  Funds.  The  General  Fund
consists of revenues  received by the State  Treasury and not required by law to
be credited to any other fund, as well as earnings from the  investment of State
moneys  not  allocable  to  another  fund.  The  General  Fund is the  principal
operating fund for the majority of governmental activities and is the depository
of most of the major  revenue  sources of the  State.  The  General  Fund may be
expended as a consequence of  appropriation  measures enacted by the Legislature
and  approved by the  Governor,  as well as  appropriations  pursuant to various
constitutional authorizations and initiative statutes.
    


                                       37
<PAGE>

   
The Special Fund for Economic Uncertainties

The Special Fund for Economic Uncertainties ("SFEU") is funded with General Fund
revenues  and was  established  to  protect  the State from  unforeseen  revenue
reductions and/or unanticipated  expenditure increases.  Amounts in the SFEU may
be  transferred  by the State  Controller as necessary to meet cash needs of the
General Fund.  The State  Controller is required to return moneys so transferred
without  payment  of  interest  as soon as there  are  sufficient  moneys in the
General Fund.  In the Budget Act for Fiscal Year  1998-99,  signed on August 21,
1998, the  Department of Finance  projects the SFEU will have a balance of about
$1.255 billion at June 30, 1999.

Inter-Fund Borrowings

Inter-fund  borrowing has been used for many years to meet temporary  imbalances
of receipts and  disbursements  in the General  Fund.  As of June 30, 1998,  the
General  Fund had no  outstanding  loans  from the SFEU,  General  Fund  Special
Accounts or any other Special Funds.

State Appropriations Limit

The State is subject to an annual appropriations limit imposed by Article XIII B
of the State Constitution (the "Appropriations Limit"). The Appropriations Limit
does not restrict  appropriations to pay debt service on voter-authorized bonds.
Article  XIII B prohibits  the State from  spending  "appropriations  subject to
limitation" in excess of the Appropriations  Limit.  "Appropriations  subject to
limitation," with respect to the State, are authorizations to spend "proceeds of
taxes,"  which  consist of tax  revenues,  and certain  other  funds,  including
proceeds from regulatory licenses, user charges or other fees to the extent that
such proceeds exceed "the cost reasonably  borne by that entity in providing the
regulation,  product or service,"  but  "proceeds  of taxes"  exclude most state
subventions to local governments,  tax refunds and some benefit payments such as
unemployment insurance. No limit is imposed on appropriations of funds which are
not  "proceeds  of taxes," such as  reasonable  user charges or fees and certain
other non-tax funds.

Not included in the Appropriations Limit are appropriations for the debt service
costs of bonds  existing  or  authorized  by January 1,  1979,  or  subsequently
authorized  by the voters,  appropriations  required to comply with  mandates of
courts or the federal  government,  appropriations  for qualified capital outlay
projects, appropriations of revenues derived from any increase in gasoline taxes
and motor vehicles weight fees above January 1, 1990 levels,  and  appropriation
of certain  special  taxes imposed by initiative  (e.g.  cigarettes  and tobacco
taxes). The Appropriations Limit may also be exceeded in cases of emergency.

The  State's  Appropriations  Limit in each  year is based on the  limit for the
prior year,  adjusted  annually for changes in California  per capital  personal
income  and  changes in  population,  and  adjusted,  when  applicable,  for any
transfer of financial  responsibility  of providing  services to or from another
unit of government. The Appropriations Limit is tested over consecutive two-year
periods.  Any excess of the  aggregate  "proceeds of taxes"  received  over such
two-year period above the combined  Appropriations Limits for those two years is
divided equally between transfers to local school and community college ("K-14")
districts and refunds to taxpayers.

The  Legislature  has enacted  legislation  to  implement  Article  XIII B which
defines  certain  terms used in Article  XIII B and sets forth the  methods  for
determining the Appropriations  Limit.  California  Government Code Section 7912
requires  an  estimate  of  the  Appropriations  Limit  to be  included  in  the
Governor's  Budget,  and  thereafter  to be subject to the  budget  process  and
established in the Budget Act.

In the  Budget  Act for  Fiscal  Year  1998-99  enacted  August  21,  1998,  the
Department of Finance projects the State's Appropriations Subject to Limitations
will be $6.3  billion  under the  State's  Appropriations  Limit in Fiscal  Year
1998-99.
    


                                       38
<PAGE>

   
Proposition 98

On November 8, 1988,  voters of the State  approved  Proposition  98, a combined
initiative   constitutional   amendment  and  statute   called  the   "Classroom
Instructional  Improvement and Accountability  Act." Proposition 98 (as modified
by Proposition 111, which was enacted on June 5, 1990), changed State funding of
public  education  below the  university  level,  and the operation of the State
Appropriations Limit,  primarily by guaranteeing K-14 schools a minimum share of
General Fund  revenues.  Proposition 98 permits the  Legislature,  by two-thirds
vote of both  houses and with the  Governor's  concurrence,  to suspend the K-14
schools'  minimum  funding  formula for a one-year  period.  Proposition 98 also
contains  provisions  transferring  certain  State tax revenues in excess of the
Article XIII B limit to K-14  schools.  The 1998-99  Budget Act contains a large
increase in funding for K-14 education under  Proposition 98,  reflecting strong
revenues which have exceeded initial budgeted  amounts.  Part of the nearly $1.7
billion increased spending is allocated to prior fiscal years.

Fiscal Years Prior to 1995-96

Pressures on the State's  budget in the late 1980's and early 1990's were caused
by a  combination  of  external  economic  conditions  and growth of the largest
General Fund Programs--K-14 education, health, welfare and corrections--at rates
faster than the revenue base. During this period, expenditures exceeded revenues
in four out of six years up to 1992-93,  and the State accumulated and sustained
a budget deficit  approaching $2.8 billion at its peak at June 30, 1993. Between
1991-92 and 1994-95  Fiscal  Years,  each budget  required  multibillion  dollar
actions to bring projected  revenues and  expenditures  into balance,  including
significant  cuts in health  and  welfare  program  expenditures;  transfers  of
program  responsibilities  and  funding  from the  State  to local  governments;
transfers  of  program   responsibilities   and  funding  from  State  to  local
governments;  transfers  of about $3.6  billion  in annual  local  property  tax
revenues  from  other  local  governments  to local  school  districts,  thereby
reducing State funding for schools under  Proposition 98; and revenue  increases
(particularly in the 1991-92 Fiscal Year budget), most of which were for a short
duration.

Despite  these  budget  actions,  the  effects  of the  recession  led to large,
unanticipated  budget  deficits.  By the 1993-94  Fiscal Year,  the  accumulated
deficit was so large that it was impractical to budget to retire it in one year,
so  a  two-year  program  was   implemented,   using  the  issuance  of  revenue
anticipation  warrants  to carry a portion  of the  deficit  over the end of the
fiscal  year.  When the economy  failed to recover  sufficiently  in 1993-94,  a
second two-year plan was implemented in 1994-95,  again using  cross-fiscal year
revenue  anticipation  warrants to partly  finance the deficit  into the 1995-96
fiscal year.

Another  consequence of the  accumulated  budget  deficits,  together with other
factors such as disbursement of funds to local school districts  "borrowed" from
future  fiscal  years  and  hence  not  shown  in  the  annual  budget,  was  to
significantly  reduce the State's  cash  resources  available to pay its ongoing
obligations.  When the Legislature and the Governor failed to adopt a budget for
the 1992-93  Fiscal Year by July 1, 1992,  which would have allowed the State to
carry out its normal annual cash flow  borrowing to replenish its cash reserves,
the State Controller issued registered  warrants to pay a variety of obligations
representing prior years' or continuing appropriations,  and mandates from court
orders.  Available funds were used to make  constitutionally-mandated  payments,
such as debt  service on bonds and  warrants.  Between  July 1 and  September 4,
1992,  when the  budget  was  adopted,  the State  Controller  issued a total of
approximately $3.8 billion of registered warrants.

For several fiscal years during the  recession,  the State was forced to rely on
external  debt  markets to meet its cash  needs,  as a  succession  of notes and
revenue  anticipation  warrants were issued in the period from June 1992 to July
1994,  often  needed  to  pay  previously  maturing  notes  or  warrants.  These
borrowings were used also in part to spread out the repayment of the accumulated
budget  deficit over the end of the fiscal  year.  The last and largest of these
borrowings  was $4.0 billion of revenue  anticipation  warrants  issued in July,
1994 and matured on April 25, 1996.
    


                                       39
<PAGE>

   
1995-96 through 1997-98 Fiscal Years

The State's financial  condition  improved markedly during the 1995-96,  1996-97
and 1997-98 fiscal years,  with a combination of better than expected  revenues,
slowdown in growth of social welfare programs,  and continued spending restraint
based on the actions  taken in earlier  years.  The State's cash  position  also
improved and no external  deficit  borrowing  has occurred over the end of these
last three fiscal years.

The economy  grew  strongly  during  these fiscal  years,  and as a result,  the
General Fund took in substantially  greater tax revenues (around $2.2 billion in
1995-96,  $1.6  billion  in  1996-97  and $2.2  billion  in  1997-98)  than were
initially  planned when the budgets were enacted.  These  additional  funds were
largely  directed to school  spending as mandated by Proposition 98, and to make
up  shortfalls  from  reduced  federal  health and  welfare  aid in 1995-96  and
1996-97.  The  accumulated  budget deficit from the recession  years was finally
eliminated.  The Department of Finance estimates that the State's budget reserve
(the SFEU) totaled $639.8 million as of June 30, 1997 and $1.782 billion at June
30, 1998.

The following were major features of the 1997-98 Budget Act:

1.   For the second  year in a row,  the Budget  contained  a large  increase in
     funding for K-14 education under Proposition 98, reflecting strong revenues
     which exceeded initial budgeted  amounts.  Part of the nearly $1.75 billion
     in increased  spending was  allocated  to prior  fiscal  years.  Funds were
     provided  to  fully  pay  for  the  cost-of-living-increase   component  of
     Proposition  98,  and to  extend  the  class  size  reduction  and  reading
     initiatives.

2.   The  Budget  Act  reflected  payment  of $1.228  billion to satisfy a court
     judgment in a lawsuit  regarding  payments to the State pension  fund,  and
     brought funding of the State's pension  contribution  back to the quarterly
     basis which existed prior to the deferral actions which were invalidated by
     the courts.

3.   Funding  from  the  General  Fund  for the  University  of  California  and
     California  State University was increased by about 6 percent ($121 million
     and $107 million, respectively), and there was no increase in student fees.

4.   Because of the effect of the pension  payment,  most other  State  programs
     were continued at 1996-97 levels, adjusted for caseload changes.

5.   Health and welfare  costs were  contained,  continuing  generally the grant
     levels from prior years, as part of the initial  implementation  of the new
     CalWORKs program.

6.   Unlike  prior years,  this Budget Act did not depend on  uncertain  federal
     budget actions.  About $300 million in federal funds,  already  included in
     the federal FY 1997 and 1998  budgets,  was  included in the Budget Act, to
     offset incarceration costs for illegal aliens.

7.   The Budget Act  contained  no tax  increases,  and no tax  reductions.  The
     Renters Tax Credit was  suspended for another  year,  saving  approximately
     $500 million.

Current State Budget

The discussion below of the 1998-99 Fiscal Year budget is based on estimates and
projections  of revenues and  expenditures  for the current fiscal year and must
not be construed as statements of fact.  These  estimates  and  projections  are
based upon  various  assumptions  which may be  affected  by  numerous  factors,
including future economic  conditions in the State and the nation, and there can
be no assurance that the estimates will be achieved.
    


                                       40
<PAGE>

   
1998-99 Fiscal Year Budget

When the Governor released his proposed 1998-99 Fiscal Year budget on January 9,
1998,  the projected  General Fund revenues for the 1998-99 Fiscal Year of $55.4
billion, and proposed  expenditures in the same amount. By the time the Governor
released the May  Revision to the 1998-99  Budget  ("May  Revision")  on May 14,
1998,  the  Administration  projected  that  revenues of the 1997-98 and 1998-99
Fiscal Years  combined would be more than $4.2 billion higher than was projected
in  January.  The  Governor  proposed  that most of this  increased  revenue  be
dedicated to fund a 75% cut in the Vehicle License Fee ("VLF").

The  Legislature  passed on the 1998-99  Budget Bill on August 11, 1998, and the
Governor  signed it on August 21,  1998.  Some 33 companion  bills  necessary to
implement the budget were also signed.  In signing the Budget Bill, the Governor
used his line-item veto power to reduce  expenditures by $1.360 billion from the
General Fund, and $160 million from Special Funds.  Of this total,  the Governor
indicated  that about  $250  million  of vetoed  funds were "set  aside" to fund
programs for education.  Vetoed items included education funds, salary increases
and many individual resources and capital projects.

The 1998-99 Budget Act is based on projected General Fund revenues and transfers
of $57.0 billion (after giving effect to various tax reductions  enacted in 1997
and 1998),  a 4.2%  increase  from the revised  1997-98  figures.  Special  Fund
revenues were estimated at $14.3 billion.  The revenue projections were based on
the May Revision.  Economic problems overseas since that time may affect the May
Revision projections.

After giving effect to the Governor's  vetoes, the Budget Act provides authority
for  expenditures  of $57.3  billion from the General Fund (a 7.3% increase form
1997-98),  $14.7 billion from Special  Funds,  and $3.4 billion from bond funds.
The Budget Act  projects  a balance  in the SFEU at June 30,  1999 (but  without
including the "set aside" veto amount) of $1.255 billion,  a little more than 2%
of General  Fund  revenues.  The Budget Act assumes the State will carry out its
normal  intra-year  cash flow borrowing in the amount of $1.7 billion of revenue
anticipation notes, which were issued on October 1, 1998.

The most  significant  feature of the 1998-99 budget was agreement on a total of
$1.4  billion of tax cuts.  The central  element is a bill which  provides for a
phased-in reduction of the VLF. Since the VLF is currently transferred to cities
and  counties,  the bill  provides  for the  General  Fund to  replace  the lost
revenues. Starting on January 1, 1999, the VLF will be reduced by 25%, at a cost
to the General Fund of approximately $500 million in the 1998-99 Fiscal Year and
about $1 billion annually thereafter.

In addition to the cut in VLF, the 1998-99  budget  includes both  temporary and
permanent  increase in the personal  income tax  dependent  credit ($612 million
General Fund cost in 1998-99, but less in future years), a nonrefundable renters
tax credit ($133  million),  and various  targeted  business  tax credits  ($106
million).

Other significant elements of the 1998-99 Budget Act are as follows:

1.   Proposition  98 funding for K-12  schools is  increased  by $1.7 billion in
     General Fund moneys over revised 1997-98 levels,  about $300 million higher
     than the minimum  Proposition 98 guaranty.  An additional  $600 million was
     appropriated to "settle up" prior years'  Proposition 98 entitlements,  and
     was  primarily  devoted to  one-time  uses such as block  grants,  deferred
     maintenance,  and computer and laboratory equipment.  Of the 1998-99 funds,
     major new programs include money for instructional  and library  materials,
     deferred  maintenance,  support for  increasing the school year to 180 days
     and  reduction of class sizes in Grade 9. The Governor held $250 million of
     education  funds which were vetoed as set-aside for enactment of additional
     reforms. Overall,  per-pupil spending for K-12 schools under Proposition 98
     is increased to $5,695,  more than  one-third  higher than the level in the
     last  recession  year of 1993-97.  The Budget also includes $250 million as
     repayment of prior years' loans to schools,  as part of the  settlement  of
     the CTA v. Gould lawsuit.
    


                                       41
<PAGE>

   
2.   Funding for higher education increased substantially above the level called
     for in the Governor's four-year compact. General Fund support was increased
     by $340 million  (15.6%) for the  University of California and $267 million
     (14.1%) for the California State University system. In addition,  Community
     Colleges received a $300 million (6.6%) increase under Proposition 98.

3.   The Budget  includes  increased  funding  for  health,  welfare  and social
     services programs.  A 4.9% grant increase was included in the basic welfare
     grants,  the first  increase in those grants in 9 years.  Future  increases
     will depend on  sufficient  General Fund revenue to trigger the phased cuts
     in VLF described above.

4.   Funding for the judiciary and criminal justice programs  increased by about
     11% over 1997-98,  primarily to reflect  increased  State support for local
     trial courts and rising prison population.

5.   Various other  highlights of the Budget  included new funding for resources
     projects,  dedication  of $376  million of General  Fund moneys for capital
     outlay projects, funding of a 3% State employee salary increase, funding of
     2,000  new   Department   of   Transportation   positions   to   accelerate
     transportation construction projects, and funding of the Infrastructure and
     Economic Development Bank ($50 million).

6.   The State of  California  received  approximately  $167  million of federal
     reimbursements to offset costs related to the incarceration of undocumented
     alien felons for federal fiscal year 1997. The State anticipates  receiving
     approximately  $195 million in federal  reimbursements  for federal  fiscal
     year 1998.

After the  Budget  Act was  signed,  and  prior to the close of the  Legislative
session on August 31, 1998,  the  Legislature  passed a variety of fiscal bills.
The Governor had until September 30, 1998 to sign or veto these bills. The bills
with the most  significant  fiscal impact which the Governor signed include $235
million for certain  water  system  improvements  in Southern  California,  $243
million  for the State's  share of the  purchase  of  environmentally  sensitive
forest  lands,  $178  million  for  state  prisons,  $160  million  for  housing
assistance  ($40 million of which was included in the 1998-99  Budget Act and an
additional  $120  million  reflected  in  proposition  1A), and $125 million for
juvenile  facilities.  The Governor also signed bills  totaling $223 million for
education  programs  which were part of the  Governor's  $250  million veto "set
aside," and $32 million for local  governments  fiscal relief.  In addition,  he
signed a bill  reducing by $577 million the State's  obligation to contribute to
the State Teachers' Retirement System in the 1998-99 Fiscal Year.

Based solely on the legislation  enacted,  on a net basis,  the reserve for June
30, 1999, was reduced by $256 million.  On the other hand, 1997-98 revenues have
been increased by $160 million.  The revised June 30, 1999, reserve is projected
to be $1,159 million or $96 million below the level projected at the Budget Act.
The reserve  projected in the Budget Act was $1,255 million.  It is important to
emphasize that the new reserve level is based on 1998-99 revenue and expenditure
assumptions as of the Budget Act except to augment for legislation  signed after
the budget  enactment.  These  assumptions will not be updated until the 1999-00
Governor's  Budget is released on January  10,  1999.  In  November,  1998,  the
Legislative  Analyst's Office released a report predicting that the General Fund
revenues for 1998-99 would be somewhat lower, and expenditures  somewhat higher,
than  the  Budget  Act  forecasts,  but the net  variance  would be  within  the
projected $1.2 billion year-end reserve amount.
    


                                       42
<PAGE>

   
Information Technology

The State's reliance on information technology in every aspect of its operations
has made Year 2000-related  ("Y2K") information  technology ("IT") issues a high
priority for the State. The Department of Information  Technology  ("DOIT"),  an
independent  office  reporting  directly to the  Governor,  is  responsible  for
ensuring  the State's  information  technology  processes  are fully  functional
before  the year  2000.  The DOIT has  created  a Year  2000  Task  Force  and a
California 2000 Office to establish  statewide policy  requirements;  to gather,
coordinate,  and  share  information;  and to  monitor  statewide  progress.  In
December 1996, the DOIT began requiring  departments to report on Y2K activities
and currently  requires  departmental  monthly reporting of Y2K status. The DOIT
has  emphasized to departments  that efforts  should be focused on  applications
that support mission-critical business practices.

The risks posed by Y2K information technology related issues are not confined to
computer  systems,  but also include problems  presented by embedded  microchips
(products  or systems  that  contain  microchips  to perform  functions  such as
traffic  control,  instruments  used in hospitals or medical  laboratories,  and
California Aqueduct monitoring).  To address these problems, the Governor issued
Executive Order W-163-97, broadening the responsibilities of the DOIT to resolve
these  issues  as well as  legal  questions  associated  with  Y2K  issues.  The
executive  order also  required that mission  critical  systems be remediated by
December  31,  1998,  that  purchases  of new  systems,  hardware,  software and
equipment be Year 2000  compliant and further  limited new computer  projects to
those required by law until a department's  Y2K problems are resolved.  The DOIT
has also more recently required  departments to address  interfacing of State IT
systems with external IT systems,  and to report on contingency  planning status
for problems which might occur if IT systems are not fully remediated by the end
of 1999.

In its quarterly report for the period ending June 30, 1998 (the "July Quarterly
Report"),   the  DOIT  reported  that  departments  under  its  supervision  had
identified 642 mission  critical IT systems out of a total of 2,432 systems.  Of
the mission-critical  systems, 87 were reported as already Y2K compliant. Of the
remaining 555 mission critical systems requiring remediation,  128 were reported
as  completed.  While  the  DOIT  does not  oversee  certain  independent  State
entities, such as the judiciary,  the Legislature,  the University of California
and California  State  University  System,  it believes these other agencies are
well under way with their own Y2K remediation plans.

In late August,  1998, the State Auditor ("BSA") released a report on "Year 2000
Computer  Problems."  The BSA surveyed 39 State  departments  and compared their
status to the March 31, 1998 DOIT quarterly  report.  (The work for BSA's report
was done  before  the DOIT July  Quarterly  Report  was  ready.)  The BSA Report
concluded that some agencies had fallen behind schedule by as much as 1-3 months
compared to their March  expectations.  The BSA Report also noted  concern  that
departments were not making adequate plans to test remediated systems,  were not
focusing  sufficiently  on problems  associated  with data  interface with other
governmental  and private  bodies,  and were not far enough along in  developing
"business  continuation  plans" to ensure continued  operations after January 1,
2000 in the event of IT problems.  The DOIT  responded in some detail to the BSA
report,  generally  agreeing with its identification of issue areas, and stating
that it was following up on all areas with the departments.

In the July Quarterly  Report,  the DOIT estimates total Y2K costs identified by
the departments under its supervision at about $239 million,  of which more that
$100 million was projected to be expended in fiscal years 1998-99 and 1999-2000.
These costs are part of much larger overall IT costs incurred  annually by State
departments and do not include costs for  remediation  for embedded  technology,
desktop systems and additional  costs resulting from  discoveries in the testing
process. For fiscal year 1998-99, the Legislature created a $20 million fund for
unanticipated Y2K costs, which can be increased if necessary.

Although the DOIT reports that State departments are making substantial progress
overall  toward  the goal of Y2K  compliance,  the task is very  large  and will
likely encounter unexpected  difficulties.  The State cannot predict whether all
mission  critical  systems  will be ready and tested by late 1999 or what impact
failure of any  particular IT system(s) or of outside  interfaces  with State IT
systems  might have.  The State  Treasurer's  Office and the State  Controller's
Office report that they are both on schedule to complete  their Y2K  remediation
projects by December 31, 1998,  allowing full testing during 1999. These systems
include debt service  payments on State debt and the State fiscal and accounting
system.
    


                                       43
<PAGE>

   
Litigation

Certain  litigation is pending  against  California or its officers or employees
that, if decided  adversely,  could require the State to make significant future
expenditures or could impair future revenue sources.  Among the more significant
of these cases are those that involve:  (i) liability for damages  stemming from
the 1986 Yuba River  flood.  Damages  of  $500,000  were  awarded to a sample of
plaintiffs.  The State's potential liability to the remaining  plaintiffs ranges
from $800 million to $1.5 billion. An appeal has been filed; (ii) a class action
lawsuit  regarding  property  damages from 1997 flooding in Northern  California
with potential  liability of $2 billion;  (iii) law-suits seeking  reimbursement
for alleged  state-mandated costs for special education programs for handicapped
students with potential  liability of over $1 billion;  (iv) lawsuits related to
contamination  at the  Stringfellow  toxic waste site seeking  recovery for past
cost of clean-up  estimated at $300 million to $800 million;  (v) a challenge to
the authority of the State  Controller to make payments from the State  Treasury
in the absence of a state budget;  (vi)  challenges to the amendment of statutes
prescribing  specific  percentages  of  tobacco  tax  revenues  to be  placed in
accounts  to be  used  for  health  education,  research  programs  and  medical
treatment programs involving appropriations of approximately $166 million; (vii)
a  challenge  to the  validity  of the  State's  smog impact fee and request for
refunds in excess of $350 million;  (viii) an action to compel the Department of
Health Services to pay part B ambulance and physician services co-payments under
the Medicare and Medicaid Acts, with a potential estimated retroactive liability
of $490 million and $130 million  annually;  (ix)  challenges to the validity of
two sections of the  California  tax laws relating to deductions  from corporate
taxes with potential liability in excess of $200 million annually.
    



                                       44
<PAGE>

                                   Appendix C

                 HISTORY OF J. & W. SELIGMAN & CO. INCORPORATED

     Seligman's  beginnings date back to 1837, when Joseph Seligman,  the oldest
of eight  brothers,  arrived in the United  States from  Germany.  He earned his
living as a pack peddler in  Pennsylvania,  and began  sending for his brothers.
The Seligmans became successful merchants,  establishing businesses in the South
and East.

     Backed by nearly thirty years of business success - culminating in the sale
of government  securities to help finance the Civil War - Joseph Seligman,  with
his brothers,  established the international banking and investment firm of J. &
W.  Seligman & Co. In the years that  followed,  the Seligman  Complex  played a
major role in the  geographical  expansion  and  industrial  development  of the
United States.

The Seligman Complex:

 ...Prior to 1900

o    Helps finance America's fledgling railroads through underwritings.
o    Is admitted to the New York Stock  Exchange  in 1869.  Seligman  remained a
     member of the NYSE until 1993,  when the  evolution of its business made it
     unnecessary.
o    Becomes a prominent underwriter of corporate securities, including New York
     Mutual Gas Light Company, later part of Consolidated Edison.
o    Provides financial  assistance to Mary Todd Lincoln and urges the Senate to
     award her a pension.
o    Is appointed U.S. Navy fiscal agent by President Grant.
o    Becomes a leader in raising  capital  for  America's  industrial  and urban
     development.

 ...1900-1910

o    Helps Congress finance the building of the Panama Canal.

 ...1910s

o    Participates  in  raising  billions  for Great  Britain,  France and Italy,
     helping to finance World War I.

 ...1920s

o    Participates  in hundreds of successful  underwritings  including those for
     some  of the  Country's  largest  companies:  Briggs  Manufacturing,  Dodge
     Brothers, General Motors,  Minneapolis-Honeywell Regulatory Company, Maytag
     Company, United Artists Theater Circuit and Victor Talking Machine Company.
o    Forms  Tri-Continental  Corporation  in 1929,  today the nation's  largest,
     diversified  closed-end equity investment company,  with over $2 billion in
     assets and one of its oldest.

 ...1930s

o    Assumes  management of Broad Street  Investing  Co. Inc.,  its first mutual
     fund, today known as Seligman Common Stock Fund, Inc.
o    Establishes Investment Advisory Service.



                                       45
<PAGE>


 ...1940s

o    Helps shape the Investment Company Act of 1940.
o    Leads in the  purchase  and  subsequent  sale to the public of Newport News
     Shipbuilding  and  Dry  Dock  Company,  a  prototype  transaction  for  the
     investment banking industry.
o    Assumes management of National Investors Corporation, today Seligman Growth
     Fund, Inc.
o    Establishes Whitehall Fund, Inc., today Seligman Income Fund, Inc.

 ...1950-1989

o    Develops new open-end  investment  companies.  Today,  manages more than 40
     mutual fund portfolios.
o    Helps  pioneer  state-specific,  municipal  bond  funds,  today  managing a
     national and 18 state-specific municipal funds.
o    Establishes J. & W. Seligman Trust Company and J. & W. Seligman  Valuations
     Corporation.
o    Establishes  Seligman  Portfolios,  Inc.,  an  investment  vehicle  offered
     through variable annuity products.

 ...1990s

o    Introduces  Seligman Select Municipal Fund and Seligman  Quality  Municipal
     Fund, two closed-end funds that invest in high quality municipal bonds.
o    In 1991 establishes a joint venture with Henderson plc, of London, known as
     Seligman Henderson Co., to offer global investment products.
o    Introduces  to  the  public   Seligman   Frontier   Fund,   Inc.,  a  small
     capitalization mutual fund.
o    Launches  Seligman  Henderson  Global Fund,  Inc.,  which today offers five
     separate series:  Seligman Henderson International Fund, Seligman Henderson
     Global Smaller Companies Fund,  Seligman  Henderson Global Technology Fund,
     Seligman Henderson Global Growth  Opportunities Fund and Seligman Henderson
     Emerging Markets Growth Fund.
o    Launches  Seligman Value Fund Series,  which currently  offers two separate
     series: Seligman Large-Cap Value Fund and Seligman Small-Cap Value Fund.


                                       46

<PAGE>

                         SELIGMAN MUNICIPAL SERIES TRUST

                        Seligman Florida Municipal Series

                       Statement of Additional Information
                                February 1, 1999

                                 100 Park Avenue
                            New York, New York 10017
                                 (212) 850-1864

                       Toll Free Telephone: (800) 221-2450


This Statement of Additional  Information (SAI) expands upon and supplements the
information contained in the current Prospectus of the Seligman Municipal Funds,
dated  February  1, 1999.  This SAI,  although  not in itself a  prospectus,  is
incorporated by reference into the Prospectus in its entirety. It should be read
in conjunction with the Prospectus,  which may be obtained by writing or calling
the Fund at the above address or telephone numbers.

The financial statements and notes included in the Fund's Annual Report, and the
Independent Auditors' Report thereon, are incorporated herein by reference.  The
Annual  Report will be furnished to you without  charge if you request a copy of
this SAI.




                                Table of Contents

   
       Fund History ..............................................    2
       Description of the Fund and Its Investments and Risks .....    2
       Management of the Fund ....................................    8
       Control Persons and Principal Holders of Securities .......   13
       Investment Advisory and Other Services ....................   13
       Brokerage Allocation and Other Practices ..................   17
       Shares of Beneficial Interest and Other Securities ........   18
       Purchase, Redemption, and Pricing of Shares ...............   18
       Taxation of the Fund ......................................   23
       Underwriters ..............................................   24
       Calculation of Performance Data ...........................   26
       Financial Statements ......................................   28
       General Information .......................................   28
       Appendix A ................................................   31
       Appendix B ................................................   34
       Appendix C ................................................   36
    




TEB1B


<PAGE>



                                  Fund History

Seligman  Municipal  Series Trust was  organized as an  unincorporated  business
trust under the laws of the  Commonwealth of  Massachusetts  by a Declaration of
Trust dated July 27, 1984.

              Description of the Fund and Its Investments and Risks

Classification

Seligman  Municipal  Series  Trust  is a  non-diversified,  open-end  management
investment  company, or mutual fund. It consists of four separate series, one of
which is discussed in this SAI:

Seligman California Municipal High-Yield Series
Seligman California Municipal Quality Series
Seligman Florida Municipal Series (Florida Fund)
Seligman North Carolina Municipal Series

Investment Strategies and Risks

The following information regarding the Fund's investments and risks supplements
the information contained in the Prospectus.

The Fund seeks to provide high income exempt from regular  federal  income taxes
consistent   with   preservation   of  capital.   The  Fund  also  invests  with
consideration given to capital gain.

The Fund is expected to invest principally,  without percentage limitations,  in
municipal  securities  which on the date of purchase  are rated  within the four
highest rating  categories of Moody's  Investors Service (Moody's) or Standard &
Poor's  Corporation  (S&P).  Municipal  Securities rated in these categories are
commonly  referred  to as  investment  grade.  The Fund may invest in  municipal
securities  that are not  rated,  or which do not fall into the  credit  ratings
noted above if, based upon credit analysis,  it is believed that such securities
are of comparable quality.  In determining  suitability of investment in a lower
rated or unrated security,  the Fund will take into consideration asset and debt
service coverage, the purpose of the financing, history of the issuer, existence
of other  rated  securities  of the  issuer and other  considerations  as may be
relevant, including comparability to other issuers.

Although securities rated in the fourth rating category are commonly referred to
as  investment  grade,  investment  in such  securities  could involve risks not
usually  associated with bonds rated in the first three categories.  Bonds rated
BBB by S&P are more  likely  as a  result  of  adverse  economic  conditions  or
changing  circumstance to exhibit a weakened capacity to pay interest and re-pay
principal than bonds in higher rating  categories and bonds rated Baa by Moody's
lack  outstanding  investment  characteristics  and  in  fact  have  speculative
characteristics according to Moody's.  Municipal securities in the fourth rating
category of S&P or Moody's will generally  provide a higher yield than do higher
rated municipal securities of similar maturities; however, they are subject to a
greater degree of  fluctuation  in value as a result of changing  interest rates
and economic conditions.  The market value of the municipal securities will also
be affected by the degree of interest of dealers to bid for them, and in certain
markets dealers may be more unwilling to trade municipal securities rated in the
fourth rating categories than in the higher rating categories.

A description of the credit rating categories is contained in Appendix A to this
SAI.

From  time to time,  proposals  have been  introduced  before  Congress  for the
purpose of  restricting  or  eliminating  the federal  income tax  exemption for
interest on municipal  securities and for providing state and local  governments
with federal credit assistance. Reevaluation of the Fund's investment objectives
and structure might be necessary in the future due to market conditions that may
result from future changes in the tax laws.


                                       2
<PAGE>

Florida Municipal Securities.  Florida Municipal Securities include notes, bonds
and  commercial  paper  issued  by or on behalf  of the  State of  Florida,  its
political subdivisions,  agencies, and instrumentalities,  the interest on which
is exempt  from  regular  federal  income  taxes.  Such  securities  are  traded
primarily in an over-the-counter market. The Fund may invest, without percentage
limitations, in certain private activity bonds, the interest on which is treated
as a preference item for purposes of the alternative minimum tax.

Under the Investment  Company Act of 1940 (1940 Act), the  identification of the
issuer of municipal  bonds or notes  depends on the terms and  conditions of the
obligation. If the assets and revenues of an agency, authority,  instrumentality
or other  political  subdivision  are  separate  from  those  of the  government
creating the  subdivision  and the  obligation  is backed only by the assets and
revenues of the  subdivision,  such  subdivision is regarded as the sole issuer.
Similarly,  in the case of an industrial  development  revenue bond or pollution
control  revenue bond,  if only the assets and revenues of the  non-governmental
user back the bond, the non-governmental user is regarded as the sole issuer. If
in  either  case  the  creating  government  or  another  entity  guarantees  an
obligation,  the security is treated as an issue of such guarantor to the extent
of the value of the guarantee.

   
The Fund invests principally in long-term  municipal bonds.  Municipal bonds are
issued to obtain funds for various public  purposes,  including the construction
of a wide  range of  public  facilities  such as  airports,  bridges,  highways,
housing,  hospitals,  mass  transportation,  schools,  streets,  water and sewer
works,  and gas and electric  utilities.  Municipal  bonds also may be issued in
connection  with the refunding of outstanding  obligations,  obtaining  funds to
lend  to  other  public  institutions,   and  for  general  operating  expenses.
Industrial development bonds are issued by or on behalf of public authorities to
obtain funds to provide various  privately-operated  facilities for business and
manufacturing,  housing,  sports,  pollution  control,  and  for  airport,  mass
transit, port and parking facilities.
    

The two principal  classifications  of municipal bonds are "general  obligation"
and "revenue."  General  obligation  bonds are secured by the issuer's pledge of
its full  faith,  credit  and taxing  power for the  payment  of  principal  and
interest.  Revenue  bonds are  payable  only from the  revenues  derived  from a
particular  facility or class of facilities or, in some cases, from the proceeds
of a special excise tax or other specific  revenue source.  Although  industrial
development bonds (IDBs) are issued by municipal authorities, they are generally
secured by the  revenues  derived  from  payments of the  industrial  user.  The
payment of principal and interest on IDBs is dependent  solely on the ability of
the  user  of the  facilities  financed  by the  bonds  to  meet  its  financial
obligations and the pledge, if any, of real and personal property so financed as
security for such payment.

   
The Fund, with respect to 75% of its assets, will not purchase any revenue bonds
if as a result of such  purchase  more  than 5% of the  Fund's  assets  would be
invested in the revenue bonds of a single issuer.
    

The Fund may also invest in municipal notes.  Municipal notes generally are used
to provide for short-term  capital needs and generally  have  maturities of five
years or less. Municipal Notes include:

     1. Tax Anticipation Notes and Revenue  Anticipation Notes. Tax anticipation
notes and revenue  anticipation  notes are issued to finance  short-term working
capital needs of political subdivisions.  Generally,  tax anticipation notes are
issued in anticipation of various tax revenues,  such as income,  sales and real
property  taxes,  and are payable  from these  specific  future  taxes.  Revenue
anticipation  notes are  issued in  expectation  of  receipt  of other  kinds of
revenue, such as grant or project revenues. Usually political subdivisions issue
notes combining the qualities of both tax and revenue anticipation notes.

     2. Bond Anticipation  Notes. Bond anticipation  notes are issued to provide
interim financing until long-term financing can be arranged.  In most cases, the
long-term bonds then provide the money for the repayment of the notes.



                                       3
<PAGE>

Issues of municipal Commercial Paper typically represent short-term,  unsecured,
negotiable promissory notes. In most cases, municipal commercial paper is backed
by letters of credit,  lending agreements,  note repurchase  agreements or other
credit facility agreements offered by banks or other institutions.

   
Variable  and  Floating  Rate  Securities.  The Fund may  purchase  floating  or
variable rate securities, including participation interests therein. Investments
in floating or variable  rate  securities  provide  that the rate of interest is
either  pegged  to money  market  rates  or set as a  specific  percentage  of a
designated  base rate,  such as rates on Treasury Bonds or Treasury Bills or the
prime rate of a major commercial bank. A floating rate or variable rate security
generally  provides that the Fund can demand  payment of the obligation on short
notice (daily or weekly,  depending on the terms of the obligation) at an amount
equal to par (face value) plus accrued interest. In Unusual  circumstances,  the
amount  received  may be more or less  than the  amount  the  Fund  paid for the
securities.

Variable  rate  securities  provide for a specified  periodic  adjustment in the
interest  rate,  while  floating  rate  securities  have an interest  rate which
changes  whenever  there is a  change  in the  designated  base  interest  rate.
Frequently  such  securities  are  secured by letters of credit or other  credit
support  arrangements  provided by banks. The quality of the underlying creditor
or of the  bank or  issuer,  as the  case  may be,  must  be  equivalent  to the
standards set forth with respect to taxable investments below.

The maturity of variable or floating rate obligations  (including  participation
interests  therein) is deemed to be the longer of (1) the notice period required
before the Fund is entitled to receive payment of the obligation upon demand, or
(2) the period remaining until the  obligation's  next interest rate adjustment.
If the Fund does not redeem the  obligation  through  the  demand  feature,  the
obligation  will mature on a specific  date,  which may range up to thirty years
from the date of its issuance.

Participation  Interests.  From time to time,  the Fund may purchase from banks,
participation  interests  in all or  part  of  specific  holdings  of  municipal
securities. A participation interest gives the Fund an undivided interest in the
municipal  security in the  proportion  that the Fund's  participation  interest
bears to the total principal  amount of the municipal  security and provides the
demand repurchase feature described above.  Participations are frequently backed
by an  irrevocable  letter of credit  or  guarantee  of a bank that the Fund has
determined  meets its prescribed  quality  standards.  The Fund has the right to
sell the instrument back to the bank and draw on the letter of credit on demand,
on short notice, for all or any part of the Fund's participation interest in the
municipal  security,  plus  accrued  interest.  The Fund intends to exercise the
demand under the letter of credit only (1) upon a default under the terms of the
documents of the municipal security, (2) as needed to provide liquidity in order
to meet  redemptions,  or (3) to maintain a high quality  investment  portfolio.
Banks  will  retain a service  and  letter of credit  fee and a fee for  issuing
repurchase  commitments in an amount equal to the excess of the interest paid on
the municipal  securities over the negotiated yield at which the instruments are
purchased by the Fund. Participation interests will be purchased only if, in the
opinion of counsel,  interest  income on such interests will be tax-exempt  when
distributed  as dividends to  shareholders  of the Fund. The Fund currently does
not purchase participation interests and has no current intention of doing so.

When-Issued  Securities.  The  Fund  may  purchase  municipal  securities  on  a
"when-issued"  basis,  which means that  delivery of and payment for  securities
normally take place in less than 45 days after the date of the buyer's  purchase
commitment.  The  payment  obligation  and  the  interest  rate  on  when-issued
securities are each fixed at the time the purchase  commitment is made, although
no interest  accrues to a purchaser  prior to the  settlement of the purchase of
the  securities.  As a result,  the yields obtained and the market value of such
securities  may be  higher  or lower on the date  the  securities  are  actually
delivered to the buyer.  The Fund will generally  purchase a municipal  security
sold on a  when-issued  basis  with the  intention  of  actually  acquiring  the
securities on the settlement date.

A separate account consisting of cash or high-grade liquid debt securities equal
to the amount of outstanding purchase commitments is established with the Fund's
custodian in connection with any purchase of when-issued securities. The account
is  marked to market  daily,  with  additional  cash or liquid  high-grade  debt
securities  added when  necessary.  The Fund meets its respective  obligation to
purchase  
    


                                       4
<PAGE>

   
when-issued securities from outstanding cash balances,  sale of other securities
or,  although  it  would  not  normally  expect  to do so,  form the sale of the
when-issued  securities  themselves  (which may have a market  value  greater or
lesser than the Fund's payment obligations).

Municipal  securities  purchased on a when-issued basis and the other securities
held in the Fund are subject to changes in market  value based upon the public's
perception  of  the  creditworthiness  of  the  issuer  and  changes,   real  or
anticipated,  in the level of interest  rates  (which will  generally  result in
similar changes in value,  i.e., both  experiencing  appreciation  when interest
rates decline and  depreciation  when interest  rates rise).  Therefore,  to the
extent the Fund remains  substantially  fully  invested at the same time that it
has  purchased  securities  on a  when-issued  basis,  there  will be a  greater
possibility  that the market value of the Fund's assets will vary.  Purchasing a
municipal  security  on a  when-issued  basis can involve a risk that the yields
available in the market when the  delivery  takes place may be higher than those
obtained on the security purchased on a when-issued basis.

Standby  Commitments.  The Fund is  authorized  to acquire  standby  commitments
issued by banks with respect to securities  they hold,  although the Fund has no
present  intention  of  investing  any  assets  in  standby  commitments.  These
commitments  would obligate the seller of the standby  commitment to repurchase,
at the Fund's option, specified securities at a specified price.

The  price  which the Fund  would  pay for  municipal  securities  with  standby
commitments  generally  would be higher than the price which  otherwise would be
paid  for the  municipal  securities  alone,  and the  Fund  would  use  standby
commitments  solely to facilitate  portfolio  liquidity.  The standby commitment
generally  is for a shorter  term than the maturity of the security and does not
restrict in any way the Fund's right to dispose of or retain the security. There
is a risk that the seller of a standby  commitment may not be able to repurchase
the security  upon the exercise of the right to resell by the Fund.  To minimize
such risks,  the Fund is presently  authorized  to acquire  standby  commitments
solely from banks deemed creditworthy. The Board of Trustees may, in the future,
consider  whether the Funds should be permitted to acquire  standby  commitments
from dealers. Prior to investing in standby commitments of dealers, the Fund, if
it  deems  necessary  based  upon  the  advice  of  counsel,  will  apply to the
Securities  and  Exchange  Commission  for an exemptive  order  relating to such
commitments  and the  valuation  thereof.  There  can be no  assurance  that the
Securities and Exchange Commission will issue such an order.

Standby  commitments  with  respect  to  portfolio  securities  of the Fund with
maturities of less than 60 days which are separate from the underlying portfolio
securities are not assigned a value. The cost of any such standby commitments is
carried as an unrealized loss from the time of purchase until it is exercised or
expires.  Standby  commitments with respect to portfolio  securities of the Fund
with  maturities  of 60 days or more  which  are  separate  from the  underlying
portfolio  securities are valued at fair value as determined in accordance  with
procedures established by the Board of Trustees. The Board of Trustees would, in
connection  with  the  determination  of  value  of such a  standby  commitment,
consider, among other factors, the creditworthiness of the writer of the standby
commitment,  the duration of the standby  commitment,  the dates on which or the
periods during which the standby  commitment may be exercised and the applicable
rules and regulations of the Securities and Exchange Commission.

Illiquid Securities. The Fund may invest up to 15% of its net assets in illiquid
securities,  including  restricted  securities  (i.e.,  securities  not  readily
marketable  without  registration  under the  Securities  Act of 1933 (the "1933
Act"))  and  other  securities  that are not  readily  marketable.  The Fund may
purchase  restricted  securities  that can be  offered  and  sold to  "qualified
institutional  buyers"  under Rule 144A of the 1933 Act, and the Fund's Board of
Trustees,  may determine,  when appropriate,  that specific Rule 144A securities
are liquid and not subject to the 15% limitation on illiquid securities.  Should
the Board of Directors make this  determination,  it will carefully  monitor the
security  (focusing  on such  factors,  among  others,  as trading  activity and
availability of information) to determine that the Rule 144A security  continues
to be liquid.  It is not  possible  to predict  with  assurance  exactly how the
market for Rule 144A securities will further  evolve.  This investment  practice
could have the effect of increasing the level of illiquidity in the Fund, if and
to the extent that qualified institutional buyers become for a time uninterested
in purchasing Rule 144A  securities.  
    

                                       5
<PAGE>

   
Borrowing.  The Fund may borrow money only from banks and only for  temporary or
emergency  purposes  (but not for the  purchase of portfolio  securities)  in an
amount  not in excess  of 10% of the  value of its total  assets at the time the
borrowing is made (not including the amount borrowed).  Permitted borrowings may
be  secured  or  unsecured.  The Fund  will not  purchase  additional  portfolio
securities if the Fund has  outstanding  borrowings in excess of 5% of the value
of its total assets.

Taxable  Investments.  Under normal market conditions,  the Fund will attempt to
invest  100% and as a matter of  fundamental  policy will invest at least 80% of
the value of its net assets in  securities  the interest on which is exempt from
regular  federal income tax and California  personal  income tax. Such interest,
however, may be subject to the federal alternative minimum tax.

Under normal market conditions, temporary investments in taxable securities will
be limited as a matter of  fundamental  policy to 20% of the value of the Fund's
net assets.
    

Except as otherwise  specifically noted above, the Fund's investment  strategies
are not fundamental and a Fund, with the approval of the Board of Trustees,  may
change such strategies without the vote of shareholders.

Fund Policies

   
The Fund is subject to fundamental  policies that place  restrictions on certain
types of  investments.  These  policies  cannot be  changed  except by vote of a
majority of the outstanding voting securities of the Fund. Under these policies,
the Fund may not:
    

- -    Borrow  money,  except from banks for temporary  purposes  (such as meeting
     redemption  requests or for extraordinary or emergency purposes but not for
     the purchase of portfolio securities) in an amount not to exceed 10% of the
     value of its total assets at the time the borrowing is made (not  including
     the  amount  borrowed).  The Fund will not  purchase  additional  portfolio
     securities  if the Fund has  outstanding  borrowings in excess of 5% of the
     value of its total assets;

- -    Mortgage or pledge any of its assets, except to secure permitted borrowings
     noted above;

- -    Invest more than 25% of total assets at market  value in any one  industry;
     except that municipal  securities and securities of the US Government,  its
     agencies and  instrumentalities are not considered an industry for purposes
     of this limitation;

- -    As to 50% of the  value of its total  assets,  purchase  securities  of any
     issuer if  immediately  thereafter  more than 5% of total  assets at market
     value would be invested in the  securities of any issuer  (except that this
     limitation  does not  apply  to  obligations  issued  or  guaranteed  as to
     principal   and  interest  by  the  US   Government   or  its  agencies  or
     instrumentalities);

   
- -    Invest  in  securities  issued  by other  investment  companies,  except in
     connection with a merger,  consolidation,  acquisition or reorganization or
     for the  purpose  of  hedging  the Fund's  obligations  under the  Deferred
     Compensation Plan for Directors;
    

- -    Purchase  or hold any real  estate,  except  that  the Fund may  invest  in
     securities secured by real estate or interests therein or issued by persons
     (other than real  estate  investment  trusts)  which deal in real estate or
     interests therein;

- -    Purchase  or  hold  the  securities  of any  issuer,  if to its  knowledge,
     trustees or officers of the Fund individually owning beneficially more than
     0.5% of the  securities of that issuer own in the aggregate more than 5% of
     such securities;

- -    Write  or  purchase  put,  call,  straddle  or  spread  options;   purchase
     securities on margin or sell "short";  underwrite  the  securities of other
     issuers,  except that the Fund may be deemed an  underwriter  in connection
     with the  purchase  and sale of  portfolio  securities;



                                       6
<PAGE>

- -    Purchase or sell  commodities  or  commodity  contracts  including  futures
     contracts; or

- -    Make loans, except to the extent that the purchase of notes, bonds or other
     evidences of indebtedness or deposits with banks may be considered loans.

The Fund  also may not  change  its  investment  objective  without  shareholder
approval.

   
Under the 1940 Act, a "vote of a majority of the outstanding  voting securities"
of the Fund means the affirmative vote of the lesser of (1) more than 50% of the
outstanding  shares  of the  Fund or (2) 67% or more of the  shares  of the Fund
present at a shareholders' meeting if more than 50% of the outstanding shares of
the Fund are represented at the meeting in person or by proxy.
    

Temporary Defensive Position

   
In  abnormal  market  conditions,  if, in the  judgment  of the Fund,  municipal
securities satisfying the Fund's investment objectives may not be purchased, the
Fund may, for defensive purposes, temporarily invest in instruments the interest
on which is exempt from regular  federal  income taxes,  but not state  personal
income taxes.  Such  securities  would include those  described  under  "Florida
Municipal Securities" above that would otherwise meet the Fund's objectives.

Also, in abnormal market conditions, the Fund may invest on a temporary basis in
fixed-income securities,  the interest on which is subject to federal, state, or
local  income  taxes,  pending  the  investment  or  reinvestment  in  municipal
securities of the proceeds of sales of shares or sales of portfolio  securities,
in order to avoid the necessity of  liquidating  portfolio  investments  to meet
redemptions  of shares by  investors or where  market  conditions  due to rising
interest  rates  or  other  adverse  factors  warrant  temporary  investing  for
defensive  purposes.  Investments in taxable securities will be substantially in
securities  issued or guaranteed by the United States Government (such as bills,
notes and bonds), its agencies,  instrumentalities or authorities;  highly-rated
corporate  debt  securities  (rated Aa3 or better by Moody's or AA- or better by
S&P);  prime  commercial  paper  (rated P-1 by Moody's or A-1+/A-1 by S&P);  and
certificates  of deposit of the 100  largest  domestic  banks in terms of assets
which are  subject  to  regulatory  supervision  by the US  Government  or state
governments and the 50 largest foreign banks in terms of assets with branches or
agencies in the United States. Investments in certificates of deposit of foreign
banks and  foreign  branches of US banks may involve  certain  risks,  including
different regulation, use of different accounting procedures, political or other
economic developments, exchange controls, or possible seizure or nationalization
of foreign deposits.
    

Portfolio Turnover

Portfolio  transactions will be undertaken  principally to accomplish the Fund's
objective in relation to anticipated  movements in the general level of interest
rates but the Fund may also engage in  short-term  trading  consistent  with its
objective. Securities may be sold in anticipation of a market decline (a rise in
interest  rates) or  purchased  in  anticipation  of a market rise (a decline in
interest rates) and later sold. In addition,  a security may be sold and another
purchased  at  approximately  the  same  time to  take  advantage  of  what  the
investment  manager  believes to be a temporary  disparity  in the normal  yield
relationship between the two securities.

   
The Fund's  portfolio  turnover  rate is  calculated  by dividing  the lesser of
purchases  or sales of portfolio  securities  for the fiscal year by the monthly
average  of the  value  of the  portfolio  securities  owned  during  the  year.
Securities whose maturity or expiration date at the time of acquisition were one
year or less are excluded from the calculation.  The Fund's  portfolio  turnover
rates for the fiscal years ended  September  30, 1998 and 1997,  were 6.73%% and
33.68%,  respectively.  The fluctuation in portfolio  turnover rates of the Fund
resulted from conditions in the Florida municipal  market.  The Fund's portfolio
turnover rate will not be a limiting  factor when the Fund deems it desirable to
sell or purchase securities.
    


                                       7
<PAGE>


                             Management of the Fund

Board of Trustees

The Board of Trustees provides broad supervision over the affairs of the Fund.

Management Information

Trustees  and  officers  of the  Fund,  together  with  information  as to their
principal business occupations during the past five years, are shown below. Each
Trustee who is an  "interested  person" of the Fund, as defined in the 1940 Act,
is indicated by an asterisk. Unless otherwise indicated, their addresses are 100
Park Avenue, New York, NY 10017.

<TABLE>
<CAPTION>
                                  
        Name,                                                                     Principal      
      (Age) and                   Positions(s) Held                          Occupation(s) During
      Address                         with Fund                                  Past 5 Years    
      -------                         ---------                                  ------------    
<S>                         <C>                             <C>                                  
 William C. Morris*         Trustee, Chairman of the        Chairman,  J. & W.  Seligman  & Co.  Incorporated, 
        (60)                Board, Chief Executive          Chairman and Chief Executive Officer, the Seligman 
                            Officer and Chairman of the     Group of investment companies;  Chairman, Seligman 
                            Executive Committee             Advisors, Inc, Seligman Services,  Inc., and Carbo 
                                                            Ceramics Inc.,  ceramic  proppants for oil and gas 
                                                            industry;    Director,    Seligman   Data   Corp., 
                                                            Kerr-McGee    Corporation,    diversified   energy 
                                                            company;  and Sarah Lawrence College; and a Member 
                                                            of  the  Board  of  Governors  of  the  Investment 
                                                            Company  Institute.   Formerly,  Director,  Daniel 
                                                            Industries  Inc.,  manufacturer  of  oil  and  gas 
                                                            metering equipment.                                
                                                            

   
   Brian T. Zino*           Trustee, President and Member   Director  and  President,  J. & W.  Seligman & Co. 
        (46)                of the Executive Committee      Incorporated;  President  (with the  exception  of 
                                                            Seligman Quality Municipal Fund, Inc. and Seligman 
                                                            Select  Municipal  Fund,  Inc.)  and  Director  or 
                                                            Trustee,   the   Seligman   Group  of   investment 
                                                            companies;    Chairman,   Seligman   Data   Corp.; 
                                                            Director,  ICI Mutual Insurance Company,  Seligman 
                                                            Advisors, Inc., and Seligman Services, Inc.        
    
                                                                                                               

Richard R. Schmaltz*        Trustee and Member of the       Director  and  Managing   Director,   Director  of 
        (58)                Executive Committee             Investments,  J. & W. Seligman & Co. Incorporated; 
                                                            Director  or  Trustee,   the  Seligman   Group  of 
                                                            investment companies; Director, Seligman Henderson 
                                                            Co.,  and  Trustee   Emeritus  of  Colby  College. 
                                                            Formerly,   Director,   Investment   Research   at 
                                                            Neuberger  & Berman  from  May  1993 to  September 
                                                            1996.                                              
</TABLE>



                                       8
<PAGE>

<TABLE>
<CAPTION>
                                  
        Name,                                                                     Principal      
      (Age) and                   Positions(s) Held                          Occupation(s) During
      Address                         with Fund                                  Past 5 Years    
      -------                         ---------                                  ------------    
<S>                                    <C>                  <C>                                  
   John R. Galvin                      Trustee              Dean,  Fletcher  School  of Law and  Diplomacy  at 
        (69)                                                Tufts   University;   Director  or  Trustee,   the 
  Tufts University                                          Seligman Group of investment companies;  Chairman, 
   Packard Avenue,                                          American  Council on  Germany;  a Governor  of the 
  Medford, MA 02155                                         Center for Creative Leadership; Director; Raytheon 
                                                            Co., electronics; National Defense University; and 
                                                            the  Institute  for  Defense  Analysis.  Formerly, 
                                                            Director,  USLIFE  Corporation;  Ambassador,  U.S. 
                                                            State   Department  for  negotiations  in  Bosnia; 
                                                            Distinguished   Policy   Analyst   at  Ohio  State 
                                                            University  and Olin  Distinguished  Professor  of 
                                                            National  Security  Studies at the  United  States 
                                                            Military  Academy.  From June, 1987 to June, 1992, 
                                                            he was the Supreme  Allied  Commander,  Europe and 
                                                            the  Commander-in-Chief,  United  States  European 
                                                            Command.                                           
                                                            

  Alice S. Ilchman                     Trustee              Retired   President,   Sarah   Lawrence   College;
        (63)                                                Director  or  Trustee,   the  Seligman   Group  of
 18 Highland Circle                                         investment companies;  Director, the Committee for
Bronxville, NY 10708                                        Economic    Development;    and   Chairman,    The
                                                            Rockefeller  Foundation,   charitable  foundation.
                                                            Formerly,    Trustee,   The   Markle   Foundation,
                                                            philanthropic  organization;  and Director, NYNEX,
                                                            telephone company; and International  Research and
                                                            Exchange Board, intellectual exchanges.           
                                                            
                              
   
  Frank A. McPherson                   Trustee             Retired  Chairman and Chief  Executive  Officer of
         (65)                                              Kerr-McGee  Corporation;  Director or Trustee, the
2601 Northwest Expressway,                                 Seligman Group of investment companies;  Director,
      Suite 805E                                           Kimberly-Clark  Corporation,   consumer  products;
Oklahoma City, OK  73112                                   Bank of Oklahoma Holding Company;  Baptist Medical
                                                           Center;    Oklahoma    Chapter   of   the   Nature
                                                           Conservancy; Oklahoma Medical Research Foundation;
                                                           and National Boys and Girls Clubs of America;  and
                                                           Member of the  Business  Roundtable  and  National
                                                           Petroleum Council.  Formerly,  Chairman,  Oklahoma
                                                           City  Public  Schools  Foundation;  and  Director,
                                                           Federal Reserve  System's Kansas City Reserve Bank
                                                           and the Oklahoma City Chamber of Commerce.        
    
                                                                                                             
</TABLE>


                                       9
<PAGE>

<TABLE>
<CAPTION>
                                  
        Name,                                                                     Principal      
      (Age) and                   Positions(s) Held                          Occupation(s) During
      Address                         with Fund                                  Past 5 Years    
      -------                         ---------                                  ------------    
<S>                                   <C>                  <C>                                  
   
   John E. Merow                      Trustee              Retired  Chairman and Senior  Partner,  Sullivan &
       (69)                                                Cromwell,  law  firm;  Director  or  Trustee,  the
  125 Broad Street                                         Seligman  125 Broad  Street,  Group of  investment
 New York, NY  10004                                       companies;  Director,  Commonwealth  New York,  NY
                                                           10004 Industries,  Inc., manufacturers of aluminum
                                                           sheet  products;  the Foreign Policy  Association;
                                                           Municipal  Art  Society  of  New  York;  the  U.S.
                                                           Council for International  Business;  and New York
                                                           Presbyterian    Hospital;    Chairman,    American
                                                           Australian Association;  and New York Presbyterian
                                                           Healthcare  Network,  Inc.;   Vice-Chairman,   the
                                                           U.S.-New  Zealand  Council;   and  Member  of  the
                                                           American  Law  Institute  and  Council  on Foreign
                                                           Relations.                                        
    
                                                           

  Betsy S. Michel                     Trustee              Attorney;  Director or Trustee, the Seligman Group
       (56)                                                of investment companies; Trustee, the Geraldine R.
   P.O. Box 449                                            Dodge  Foundation,   charitable  foundation;   and
Gladstone, NJ 07934                                        Chairman of the Board of Trustees of St.  George's
                                                           School  (Newport,  RI).  Formerly,  Director,  the
                                                           National   Association  of   Independent   Schools
                                                           (Washington, DC).                                 
                                                           

   James C. Pitney                      Trustee            Retired Partner, Pitney, Hardin, Kipp & Szuch, law 
       (72)                                                firm;  Director or Trustee,  the Seligman Group of 
Park Avenue at Morris County,                              investment companies.  Formerly,  Director, Public 
P.O. Box 1945, Morristown, NJ                              Service Enterprise Group, public utility.          
      07962                                                


   
  James Q. Riordan                     Trustee             Director  or  Trustee,   the  Seligman   Group  of
        (71)                                               investment   companies;   Director,   The  Houston 
  675 Third Avenue,                                        Exploration Company; The Brooklyn Museum,  KeySpan 
     Suite 3004                                            Energy   Corporation;   and  Public   Broadcasting 
 New York, NY 10017                                        Service;  and Trustee,  the Committee for Economic 
                                                           Development.  Formerly,  Co-Chairman of the Policy 
                                                           Council of the Tax  Foundation;  Director,  Tesoro 
                                                           Petroleum Companies, Inc. and Dow Jones & Company, 
                                                           Inc.; Director and President, Bekaert Corporation; 
                                                           and Co-Chairman, Mobil Corporation.                
                                                           

  Robert L. Shafer                     Trustee             Retired Vice President,  Pfizer Inc.;  Director or 
        (66)                                               Trustee,   the   Seligman   Group  of   investment 
96 Evergreen Avenue,                                       companies. Formerly, Director, USLIFE Corporation. 
   Rye, NY 10580                                        
    
</TABLE>


                                       10
<PAGE>

<TABLE>
<CAPTION>
                                  
        Name,                                                                     Principal      
      (Age) and                   Positions(s) Held                          Occupation(s) During
      Address                         with Fund                                  Past 5 Years    
      -------                         ---------                                  ------------    
<S>                                   <C>                  <C>                                  
   
   James N. Whitson                   Trustee              Director  and  Consultant,   Sammons  Enterprises,
         (63)                                              Inc.;  Director or Trustee,  the Seligman Group of
6606 Forestshire Drive                                     investment companies;  C-SPAN; and CommScope, Inc.
   Dallas, TX 75230                                        manufacturer   of   coaxial   cables.    Formerly,
                                                           Executive Vice President, Chief Operating Officer,
                                                           Sammons Enterprises,  Inc.; and Director,  Red Man
                                                           Pipe  and   Supply   Company,   piping  and  other
                                                           materials.   
    
                                                         

    Thomas G. Moles          Vice President and Senior     Director and Managing Director, J. & W. Seligman &
          (56)               Portfolio Manager             Co.   Incorporated;   Vice  President  and  Senior  
                                                           Portfolio Manager, three other open-end investment  
                                                           companies in the  Seligman  Group;  President  and  
                                                           Senior   Portfolio   Manager,   Seligman   Quality  
                                                           Municipal Fund, Inc. and Seligman Select Municipal
                                                           Fund, Inc., closed-end  investment companies;  and
                                                           Director,  Seligman  Advisors,  Inc.  and Seligman
                                                           Services, Inc.                                    
                                                           

   Lawrence P. Vogel                 Vice President        Senior Vice President, Finance, J. & W. Seligman &
         (42)                                              Co.  Incorporated,  Seligman  Advisors,  Inc., and  
                                                           Seligman Data Corp.; Vice President,  the Seligman  
                                                           Group  of   investment   companies   and  Seligman
                                                           Services, Inc.; and Treasurer,  Seligman Henderson
                                                           Co.                                               
                                                           

   
    Frank J. Nasta                     Secretary           General  Counsel,  Senior Vice President,  Law and
         (34)                                              Regulation  and  Corporate  Secretary,   J.  &  W.  
                                                           Seligman  &  Co.  Incorporated;   Secretary,   the  
                                                           Seligman Group of investment  companies,  Seligman  
                                                           Advisors,  Inc.,  Seligman Henderson Co., Seligman
                                                           Services, Inc., and Seligman Data Corp.           
    
                                                           

     Thomas G. Rose                    Treasurer           Treasurer,   the  Seligman   Group  of  investment
          (41)                                             companies and Seligman Data Corp.                 
</TABLE>


   
The  Executive  Committee  of the Board  acts on  behalf  of the  Board  between
meetings to determine the value of  securities  and assets owned by the Fund for
which no market valuation is available,  and to elect or appoint officers of the
Fund to serve until the next meeting of the Board.

Trustees and officers of the Fund are also directors and officers of some or all
of the other investment companies in the Seligman Group.
    


                                       11
<PAGE>


Compensation

<TABLE>
<CAPTION>

                                                                          Pension or             Total Compensation
                                                       Aggregate       Retirement Benefits          from Fund and
            Name and                                 Compensation      Accrued as Part of         Fund Complex Paid
       Position with Fund                            from Fund (1)       Fund Expenses           to Trustees (1)(2)
       ------------------                            -------------       -------------           ------------------
<S>                                                    <C>                  <C>                     <C>
   
William C. Morris, Trustee and Chairman                  N/A                 N/A                         N/A
Brian T. Zino, Trustee and President                     N/A                 N/A                         N/A
Richard R. Schmaltz, Trustee                             N/A                 N/A                         N/A
John R. Galvin, Trustee                                 $599                 N/A                     $77,000
Alice S. Ilchman, Trustee                                527                 N/A                      70,000
Frank A. McPherson, Trustee                              577                 N/A                      75,000
John E. Merow, Trustee                                   567                 N/A                      74,000
Betsy S. Michel, Trustee                                 599                 N/A                      77,000
James C. Pitney, Trustee                                 547                 N/A                      72,000
James Q. Riordan, Trustee                                547                 N/A                      72,000
Robert L. Shafer, Trustee                                547                 N/A                      72,000
James N. Whitson, Trustee                                598(d)              N/A                      77,000(d)
</TABLE>
    
- ----------
(1)  For the Fund's fiscal year ended September 30, 1998.  Effective January 16,
     1998,  the per meeting fee for Trustees was  increased by $1,000,  which is
     allocated among all funds in the Fund Complex.

(2)  The Seligman Group of investment  companies consists of eighteen investment
     companies.

(d)  Deferred.

   
Seligman  Municipal  Series  Trust has a  compensation  arrangement  under which
outside  trustees may elect to defer  receiving their fees.  Seligman  Municipal
Series Trust has adopted a Deferred  Compensation Plan under which a trustee who
has  elected  deferral  of his or her fees may choose a rate of return  equal to
either (1) the interest rate on short-term  Treasury  bills,  or (2) the rate of
return  on the  shares of any of the  investment  companies  advised  by J. & W.
Seligman & Co. Incorporated, as designated by the trustee. The cost of such fees
and earnings is included in trustees'  fees and  expenses,  and the  accumulated
balance  thereof  is  included  in other  liabilities  in the  Fund's  financial
statements.  The total  amount of  deferred  compensation  (including  earnings)
payable in  respect of the Fund to Mr.  Whitson  as of  September  30,  1998 was
$2,667. Messrs. Merow and Pitney no longer defer current compensation;  however,
they have  accrued  deferred  compensation  in the amounts of $5,659 and $4,142,
respectively, as of September 30, 1998.

The Fund  may,  but is not  obligated  to,  purchase  shares of  Seligman  Group
investment  companies to hedge its  obligations in connection  with the Deferred
Compensation Plan.
    

Sales Charges

Class A shares of the Fund may be issued  without a sales  charge to present and
retired directors,  trustees,  officers, employees (and their family members) of
the Fund,  the other  investment  companies in the Seligman  Group,  and J. & W.
Seligman & Co.  Incorporated  and its affiliates.  Family members are defined to
include lineal descendents and lineal ancestors, siblings (and their spouses and
children) and any company or  organization  controlled by any of the  foregoing.
Such sales also may be made to employee  benefit  plans for such  persons and to
any investment advisory,  custodial, trust or other fiduciary account managed or
advised by J. & W. Seligman & Co. Incorporated or any affiliate. These sales may
be made for investment purposes only, and shares may be resold only to the Fund.

Class A shares may be sold at net asset value to these  persons since such sales
require  less sales  effort and lower sales  related  expenses as compared  with
sales to the general public.


                                       12
<PAGE>

               Control Persons and Principal Holders of Securities

   
Control Persons

As of January 12, 1999,  there was no person or persons who controlled the Fund,
either  through  significant  ownership  of Fund  shares or any  other  means of
control.

Principal Holders

As of January 12, 1999, MLPF&S for the Sole Benefit of Its Customers,  Attn Fund
Administration,  4800 Deer Lake Drive East,  3rd Floor,  Jacksonville,  FL 32246
owned of record 18.24% of the outstanding Class A shares of beneficial  interest
of the Fund.

Management Ownership

Trustees  and  officers  of the  Fund  as a  group  owned  less  than  1%of  the
outstanding Class A shares of beneficial  interest of the Fund as of January 12,
1999. As of the same date, no Trustees or officers of the Fund owned any Class D
shares of beneficial interest of the Fund.
    

                     Investment Advisory and Other Services

   
Investment Manager
    

J. & W. Seligman & Co.  Incorporated  (Seligman) manages the Fund. Seligman is a
successor  firm to an  investment  banking  business  founded  in 1864 which has
thereafter provided investment services to individuals,  families, institutions,
and  corporations.  On December 29, 1988, a majority of the  outstanding  voting
securities of Seligman was purchased by Mr. William C. Morris and a simultaneous
recapitalization  of Seligman  occurred.  See Appendix C for further  history of
Seligman.

All of the  officers  of the Fund listed  above are  officers  or  employees  of
Seligman.  Their affiliations with the Fund and with Seligman are provided under
their principal business occupations.

   
The Fund pays Seligman a management fee for its services,  calculated  daily and
payable  monthly.  The  management  fee is equal to .50% per annum of the Fund's
average daily net assets.  For the fiscal years ended September 30, 1998,  1997,
and 1996,  the Fund paid  Seligman  management  fees in the amount of  $220,971,
$228,202, and $243,865,respectively. Seligman, in its discretion, waived a small
portion of its fee from the Fund in 1996 which resulted in an annual fee rate of
 .50% of the Fund's average daily net assets.

The Fund  pays  all of its  expenses  other  than  those  assumed  by  Seligman,
including brokerage  commissions,  if any, shareholder services and distribution
fees,  fees and  expenses  of  independent  attorneys  and  auditors,  taxes and
governmental fees, including fees and expenses of qualifying the Funds and their
shares under federal and state securities  laws, cost of stock  certificates and
expenses of  repurchase  or  redemption  of shares,  expenses  of  printing  and
distributing reports,  notices and proxy materials to shareholders,  expenses of
printing and filing  reports and other  documents  with  governmental  agencies,
expenses of  shareholders'  meetings,  expenses of corporate data processing and
related services,  shareholder record keeping and shareholder  account services,
fees and disbursements of transfer agents and custodians, expenses of disbursing
dividends and  distributions,  fees and expenses of the Trustees of the Fund not
employed by or serving as a director of  Seligman or its  affiliates,  insurance
premiums and extraordinary expenses such as litigation expenses.  These expenses
are  allocated  between the Funds in a manner  determined  by the Trustees to be
fair and equitable.
    

The  Management  Agreement also provides that Seligman will not be liable to the
Fund for any error of judgment or mistake of law, or for any loss arising out of
any  investment,  or for any act or omission in


                                       13
<PAGE>

performing  its  duties  under the  Management  Agreement,  except  for  willful
misfeasance,   bad  faith,  gross  negligence,  or  reckless  disregard  of  its
obligations and duties under the Management Agreement.

The Fund's  Management  Agreement was approved by the Trustees at a meeting held
on June 21,  1990 and was  approved  by the  Florida  shareholders  at a Special
Meeting of the Fund held on December 7, 1990.  The  Agreement  will  continue in
effect until December 31 of each year if (1) such continuance is approved in the
manner  required by the 1940 Act (i.e.,  by a vote of a majority of the Trustees
or of the outstanding  voting securities of the Fund and by a vote of a majority
of the Trustees who are not parties to the  Management  Agreement or  interested
persons of any such party) and (2) Seligman  shall not have notified the Fund at
least 60 days  prior to  December  31 of any year that it does not  desire  such
continuance. The Agreement may be terminated by the Fund, without penalty, on 60
days' written notice to Seligman and will terminate  automatically  in the event
of its  assignment.  The Fund has agreed to change its name upon  termination of
its Management  Agreement if continued use of the name would cause  confusion in
the context of Seligman's business.

Officers,  directors  and  employees  of  Seligman  are  permitted  to engage in
personal securities transactions, subject to Seligman's Code of Ethics. The Code
of Ethics  proscribes  certain  practices  with  regard to  personal  securities
transactions and personal  dealings,  provides a framework for the reporting and
monitoring of personal securities transactions by Seligman's Compliance Officer,
and sets forth a  procedure  of  identifying,  for  disciplinary  action,  those
individuals who violate the Code of Ethics. The Code of Ethics prohibits each of
the  officers,  directors and employees  (including  all portfolio  managers) of
Seligman from purchasing or selling any security that the officer,  director, or
employee knows or believes (1) was  recommended by Seligman for purchase or sale
by any client,  including the Fund, within the preceding two weeks, (2) has been
reviewed by Seligman  for  possible  purchase or sale within the  preceding  two
weeks, (3) is being purchased or sold by any client,  (4) is being considered by
a research analyst,  (5) is being acquired in a private placement,  unless prior
approval has been obtained from Seligman's  Compliance  Officer, or (6) is being
acquired during an initial or secondary public offering. The Code of Ethics also
imposes a strict standard of confidentiality  and requires portfolio managers to
disclose  any  interest  they may have in the  securities  or issuers  that they
recommend for purchase by any client.

The Code of Ethics also  prohibits  (1) each  portfolio  manager or member of an
investment  team from  purchasing or selling any security  within seven calendar
days of the  purchase or sale of the security by a client's  account  (including
investment  company accounts) for which the portfolio manager or investment team
manages;  and (2) each employee from engaging in short-term  trading (a purchase
and sale or vice-versa  within 60 days). Any profit realized  pursuant to either
of these prohibitions must be disgorged.

Officers,  directors,  and  employees  are  required,  except under very limited
circumstances,  to engage in personal securities transactions through Seligman's
order  desk.  The order  desk  maintains  a list of  securities  that may not be
purchased due to a possible conflict with clients.  All officers,  directors and
employees are also  required to disclose all  securities  beneficially  owned by
them on December 31 of each year.

Principal Underwriter

   
Seligman Advisors,  Inc., (Seligman Advisors) an affiliate of Seligman, 100 Park
Avenue,  New York, New York 10017, acts as general  distributor of the shares of
the Fund and of the other mutual funds in the Seligman Group.  Seligman Advisors
is an  "affiliated  person" (as defined in the 1940 Act) of  Seligman,  which is
itself an affiliated  person of the Fund.  Those  individuals  identified  above
under  "Management  Information"  as  trustees  or officers of both the Fund and
Seligman Advisors are affiliated persons of both entities.

Services Provided by the Investment Manager
    

Under the Management Agreement,  dated December 29, 1988, subject to the control
of the Board of Trustees,  Seligman  manages the investment of the assets of the
Fund,  including making purchases and


                                       14
<PAGE>

sales of portfolio securities  consistent with the Fund's investment  objectives
and  policies,  and  administers  their  business  and other  affairs.  Seligman
provides the Fund with such office space,  administrative and other services and
executive and other  personnel as are necessary  for Fund  operations.  Seligman
pays all of the  compensation  of  trustees  of the Fund  who are  employees  or
consultants of Seligman and of the officers and employees of the Fund.  Seligman
also provides senior management for Seligman Data Corp., the Fund's  shareholder
service agent.

Service Agreements

There are no other management-related service contracts under which services are
provided to the Fund.

Other Investment Advice

No person or persons, other than directors,  officers, or employees of Seligman,
regularly advise the Fund with respect to its investments.

Dealer Reallowances

Dealers and financial  advisors receive a percentage of the initial sales charge
on sales of Class A shares of the Fund, as set forth below:

<TABLE>
<CAPTION>
                                                                                   Regular Dealer
                                      Sales Charge          Sales Charge             Reallowance
                                       as a % of           as a % of Net             As a % of
Amount of Purchase                  Offering Price(1)     Amount Invested          Offering Price
- ------------------                  -----------------     ---------------          --------------
<S>                                     <C>                    <C>                      <C>  
Less than  $ 50,000                     4.75%                  4.99%                    4.25%
$50,000  -  $ 99,999                    4.00                   4.17                     3.50
$100,000  -  $249,999                   3.50                   3.63                     3.00
$250,000  -  $499,999                   2.50                   2.56                     2.25
$500,000  -  $999,999                   2.00                   2.04                     1.75
$1,000,000  and over(2)                  0                       0                        0
</TABLE>

(1)  "Offering  Price" is the amount that you actually  pay for Fund shares;  it
     includes the initial sales charge.

(2)  You will not pay a sales charge on purchases of $1 million or more, but you
     will be subject to a 1% CDSC if you sell your shares within 18 months.

   
Seligman Services,  Inc.  (Seligman  Services),  an affiliate of Seligman,  is a
limited  purpose  broker/dealer.   Seligman  Services  is  eligible  to  receive
commissions from certain sales of Fund shares.  For fiscal years ended September
30, 1998,  1997, and 1996,  Seligman  Services  received  commissions of $2,125,
$1,118, and $1,101.
    

Rule 12b-1 Plan

Seligman  Municipal  Series  Trust has  adopted an  Administration,  Shareholder
Services and Distribution  Plan (12b-1 Plan) in accordance with Section 12(b) of
the 1940 Act and Rule 12b-1 thereunder.

   
Under the 12b-1 Plan, the Fund may pay to Seligman  Advisors an  administration,
shareholder  services  and  distribution  fee in  respect of Class A and Class D
shares.  Payments under the 12b-1 Plan may include,  but are not limited to: (1)
compensation   to   securities   dealers   and  other   organizations   (Service
Organizations)  for  providing  distribution  assistance  with respect to assets
invested in the Fund; (2)  compensation to Service  Organizations  for providing
administration,  accounting and other shareholder  services with respect to Fund
shareholders;  and (3)  otherwise  promoting  the sale of  shares  of the  Fund,
including paying for the preparation of advertising and sales literature and the
printing and  distribution  of such  promotional  materials and  prospectuses to
prospective  investors  and  defraying  Seligman  Advisors'  costs  incurred  in
connection  with its  marketing  efforts  with  respect  to  shares of the Fund.
Seligman,  in its sole  discretion,  may also make similar  payments to Seligman
Advisors  from its own  resources,  which
    


                                       15
<PAGE>

   
may include the  management fee that Seligman  receives from the Fund.  Payments
made by the Fund under the 12b-1 Plan are intended to be used to encourage sales
of the Fund, as well as to discourage redemptions.

Fees paid by the Fund under the 12b-1  Plan with  respect to any class of shares
may not be used to pay expenses incurred solely in respect of any other class or
any other Seligman  fund.  Expenses  attributable  to more than one class of the
Fund will be  allocated  between the classes in  accordance  with a  methodology
approved by the Fund's Board of  Directors.  The Fund may  participate  in joint
distribution  activities  with other  Seligman  funds,  and the expenses of such
activities will be allocated among the applicable funds based on relative sales,
in accordance with a methodology approved by the Board.

Class A 

Under the 12b-1 Plan, the Fund,  with respect to Class A shares,  pays quarterly
to  Seligman  Advisors  a  service  fee at an  annual  rate of up to .25% of the
average  daily net asset  value of the  Class A shares.  These  fees are used by
Seligman Advisors  exclusively to make payments to Service  Organizations  which
have entered into agreements with Seligman Advisors.  Such Service Organizations
receive  from  Seligman  Advisors  a  continuing  fee of up to .25% on an annual
basis,  payable  quarterly,  of the  average  daily net assets of Class A shares
attributable  to the  particular  Service  Organization  for providing  personal
service and/or maintenance of shareholder  accounts.  The fee payable to Service
Organizations from time to time shall,  within such limits, be determined by the
Directors of the Fund.  The Fund is not  obligated to pay Seligman  Advisors for
any such  costs it  incurs  in excess of the fee  described  above.  No  expense
incurred in one fiscal year by Seligman  Advisors with respect to Class A shares
of the Fund may be paid from  Class A 12b-1 fees  received  from the Fund in any
other fiscal year.  If the Fund's 12b-1 Plan is terminated in respect of Class A
shares,  no amounts (other than amounts  accrued but not yet paid) would be owed
by the Fund to  Seligman  Advisors  with  respect  to Class A shares.  The total
amount  paid by the Fund to  Seligman  Advisors in respect of Class A shares for
the fiscal year ended September 30, 1998 was $99,371,  equivalent to .23% of the
Class A shares' average daily net assets.

Class D

Under the 12b-1 Plan, the Fund, with respect to Class D shares,  pays monthly to
Seligman Advisors a 12b-1 fee at an annual rate of up to 1% of the average daily
net asset value of the Class D shares.  The Fee is used by Seligman  Advisors as
follows:  During  the  first  year  following  the  sale of  Class D  shares,  a
distribution fee of .75% of the average daily net assets attributable to Class D
share is used, along with any CDSC proceeds,  to (1) reimburse Seligman Advisors
for its payment at the time of sale of Class D shares of a .75% sales commission
to Service Organizations, and (2) pay for other distribution expenses, including
paying for the preparation of advertising and sales  literature and the printing
and distribution of such  promotional  materials and prospectuses to prospective
investors and other marketing costs of Seligman  Advisors.  In addition,  during
the first year following the sale of Class D shares, a service fee of up to .25%
of the average daily net assets  attributable  to such Class D shares is used to
reimburse  Seligman Advisors for its prepayment to Service  Organizations at the
time of sale of Class D shares of a  service  fee of up to .25% of the net asset
value of the Class D share sold (for  shareholder  services  to be  provided  to
Class D shareholders  over the course of the one year immediately  following the
sale). The payment to Seligman  Advisors is limited to amounts Seligman Advisors
actually  paid to Service  Organizations  at the time of sale as  service  fees.
After the initial one-year period following a sale of Class D shares, the entire
12b-1 fee  attributable to such Class D shares is paid to Service  Organizations
for providing  continuing  shareholder  services and distribution  assistance in
respect of assets  invested  in the Fund.  The total  amount paid by the Fund in
respect of Class D shares  for the fiscal  year  ended  September  30,  1998 was
$18,293,  equivalent to 1.00% per annum of the average daily net assets of Class
D shares.

The amounts expended by Seligman  Advisors in any one year with respect to Class
D shares of the Fund may  exceed  the 12b-1  fees paid by the Fund in that year.
The Fund's 12b-1 Plan permits expenses  incurred by Seligman Advisors in respect
of Class D shares in one fiscal year to be paid from Class D 12b-1 fees
    


                                       16
<PAGE>

   
received from the Fund in any other fiscal year; however, in any fiscal year the
Fund is not  obligated  to pay any 12b-1  fees in  excess of the fees  described
above.

As of September 30, 1998 Seligman  Advisors has incurred  $5,076 of unreimbursed
expenses in respect of the Fund's  Class D shares.  This amount equal to .26% of
the net assets of Class D at September 30, 1998.

If the 12b-1 Plan is  terminated  in  respect of Class D shares of the Fund,  no
amounts (other than amounts  accrued but not yet paid) would be owed by the Fund
to Seligman Advisors with respect to Class D shares.

Payments  made by the Fund  under  the  12b-1  Plan for its  fiscal  year  ended
September  30, 1998,  were spent on the  following  activities  in the following
amounts:
                                              Class A              Class D
                                              -------              -------

Compensation to underwriters                                        $3,556

Compensation to broker/dealers                 $99,371             $14,737
    

The 12b-1  Plan was  approved  on June 21,  1990 by the  Trustees,  including  a
majority of the  Trustees  who are not  "interested  persons" (as defined in the
1940 Act) of the Fund and who have no direct or indirect  financial  interest in
the  operation of the 12b-1 Plan or in any  agreement  related to the 12b-1 Plan
(the  "Qualified  Trustees")  and was  approved by  shareholders  of the Fund on
December 7, 1990. Amendments to the Plan were approved in respect of the Class D
shares on  November  18,  1993 by the  Trustees,  including  a  majority  of the
Qualified  Trustees,  and became effective with respect to the Class D shares on
February 1, 1994.  The 12b-1 Plan will  continue in effect until  December 31 of
each year so long as such continuance is approved annually by a majority vote of
both the Trustees and the Qualified Trustees, cast in person at a meeting called
for the purpose of voting on such approval. The 12b-1 Plan may not be amended to
increase  materially  the  amounts  payable  under the  terms of the 12b-1  Plan
without the approval of a majority of the outstanding  voting  securities of the
Fund and no  material  amendment  to the 12b-1 Plan may be made  except with the
approval  of a majority  of both the  Trustees  and the  Qualified  Trustees  in
accordance  with  the  applicable  provisions  of the  1940  Act and  the  rules
thereunder.

The 12b-1 Plan  requires  that the  Treasurer  of the Fund shall  provide to the
Trustees,  and the Trustees shall review at least quarterly, a written report of
the amounts  expended (and purposes  therefor)  made under the 12b-1 Plan.  Rule
12b-1 also requires  that the  selection and  nomination of Trustees who are not
"interested persons" of the Fund be made by such disinterested Trustees.

   
Seligman  Services acts as a broker/dealer  of record for  shareholder  accounts
that do not have a designated  financial advisor and receives  compensation from
the Fund pursuant to the 12b-1 Plan for providing  personal services and account
maintenance  to such accounts and other  distribution  services.  For the fiscal
years ended  September 30, 1998,  1997,  and 1996,  Seligman  Services  received
distribution  and service  fees of $4,566,  $5,302,  and  $5,070,  respectively,
pursuant to the 12b-1 Plan.
    

                    Brokerage Allocation and Other Practices

Brokerage Transactions

   
For the fiscal years ended  September  30, 1998,  1997,  and 1996,  no brokerage
commissions were paid by the Fund. When two or more of the investment  companies
in the Seligman Group or other investment advisory clients of Seligman desire to
buy or sell the same security at the same time, the securities purchased or sold
are  allocated by Seligman in a manner  believed to be equitable to each.  There
may be possible advantages or disadvantages of such transactions with respect to
price or the size of positions readily obtainable or saleable.
    

In  over-the-counter  markets,  the Fund deals with  responsible  primary market
makers unless a more favorable  execution or price is believed to be obtainable.
The Fund  may buy  securities  from or sell 


                                       17
<PAGE>

securities  to  dealers  acting as  principal,  except  dealers  with  which its
directors and/or officers are affiliated.

       

Commissions

For the fiscal years ended September 30, 1998,  1997, and 1996, the Fund did not
execute  any  portfolio  transactions  with,  and  therefore  did  not  pay  any
commissions  to, any  broker  affiliated  with  either  the Fund,  Seligman,  or
Seligman Advisors.

       

Regular Broker-Dealers

   
During the Fund's fiscal year ended September 30, 1998, the Fund did not acquire
securities of its regular brokers or dealers (as defined in Rule 10b-1 under the
1940 Act) or of their parents.
    

               Shares of Beneficial Interest and Other Securities

Shares of Beneficial Interest

Seligman  Municipal  Series Trust is authorized to issue an unlimited  number of
full and fractional shares of beneficial interest,  par value $.001, in separate
series.  To date, four series have been authorized,  the Fund being one of them.
The Fund has two classes,  designated Class A and Class D shares.  Each share of
the Fund's  Class A and Class D  beneficial  interest  is equal as to  earnings,
assets,  and voting  privileges,  except that each class bears its own  separate
distribution  and,  potentially,  certain other class expenses and has exclusive
voting  rights with respect to any matter to which a separate  vote of any class
is required by the 1940 Act or  Massachusetts  law.  Seligman  Municipal  Series
Trust has adopted a  multiclass  plan  pursuant to Rule 18f-3 under the 1940 Act
permitting  the issuance and sale of multiple  classes.  In accordance  with the
Declaration  of Trust,  the Board of  Trustees  may  authorize  the  creation of
additional  classes of  beneficial  interest  with such  characteristics  as are
permitted by the multiples plan and Rule 18f-3. The 1940 Act requires that where
more than one class exists,  each class must be preferred over all other classes
in respect of assets  specifically  allocated  to such  class.  All shares  have
noncumulative voting rights for the election of trustees. Each outstanding share
is fully paid and non-assessable,  and each is freely transferable. There are no
liquidation, conversion, or preemptive rights.


                                       18
<PAGE>

Other Securities

Seligman  Municipal  Series Trust has no  authorized  securities  other than its
shares of beneficial interest.

                   Purchase, Redemption, and Pricing of Shares

Purchase of Shares

Class A

Class A shares may be  purchased  at a price  equal to the next  determined  net
asset value per share, plus an initial sales charge.

Purchases  of Class A shares by a "single  person"  (as  defined  below)  may be
eligible for the following reductions in initial sales charges:


Volume  Discounts  are provided if the total  amount  being  invested in Class A
shares of the Fund alone,  or in any  combination  of shares of the other mutual
funds in the Seligman Group which are sold with an initial sales charge, reaches
levels indicated in the sales charge schedule set forth in the Prospectus.

The Right of  Accumulation  allows an  investor  to  combine  the  amount  being
invested in Class A shares of the Fund and shares of the other  Seligman  mutual
funds sold with an initial sales charge with the total net asset value of shares
of those mutual funds  already owned that were sold with an initial sales charge
and the total net asset value of shares of Seligman Cash  Management  Fund which
were acquired  through an exchange of shares of another  Seligman mutual fund on
which there was an initial  sales  charge at the time of  purchase to  determine
reduced  sales charges in accordance  with the schedule in the  prospectus.  The
value of the  shares  owned,  including  the value of shares  of  Seligman  Cash
Management  Fund  acquired in an exchange of shares of another  Seligman  mutual
fund on which there was an initial  sales charge at the time of purchase will be
taken into account in orders placed through a dealer,  however, only if Seligman
Advisors  is  notified  by an  investor  or a dealer of the amount  owned by the
investor  at  the  time  the  purchase  is  made  and  is  furnished  sufficient
information to permit confirmation.

A Letter of Intent allows an investor to purchase Class A shares over a 13-month
period at reduced  initial sales charges in accordance  with the schedule in the
Prospectus,  based on the  total  amount  of Class A shares of the Fund that the
letter states the investor intends to purchase plus the total net asset value of
shares that were sold with an initial sales charge of the other Seligman  mutual
funds  already  owned and the total net asset value of shares of  Seligman  Cash
Management  Fund which were  acquired  through an  exchange of shares of another
Seligman  mutual fund on which there was an initial  sales charge at the time of
purchase.  Reduced  sales  charges  also may apply to  purchases  made  within a
13-month  period starting up to 90 days before the date of execution of a letter
of intent.

   
CDSC Applicable to Class A Shares.  Class A shares purchased  without an initial
sales  charge  in  accordance  with the  sales  charge  schedule  in the  Fund's
Prospectus,  or pursuant to a Volume Discount, Right of Accumulation,  or Letter
of Intent  are  subject to a CDSC of 1% on  redemptions  of such  shares  within
eighteen months of purchase. Employee benefit plans eligible for net asset value
sales (as described  below) may be subject to a CDSC of 1% for  terminations  at
the plan level only, on redemptions of shares  purchased  within eighteen months
prior to plan  termination.  The 1% CDSC  will be  waived  on  shares  that were
purchased   through  Morgan  Stanley  Dean  Witter  &  Co.  by  certain  Chilean
institutional  investors (i.e. pension plans,  insurance  companies,  and mutual
funds). Upon redemption of such shares within an eighteen-month  period,  Morgan
Stanley Dean Witter will reimburse  Seligman  Advisors a pro rata portion of the
fee it received from Seligman Advisors at the time of sale of such shares.
    

See "CDSC  Waivers"  below for other  waivers which may be applicable to Class A
shares.



                                       19
<PAGE>

Persons  Entitled To  Reductions.  Reductions  in initial sales charges apply to
purchases  of Class A shares  by a "single  person,"  including  an  individual;
members of a family  unit  comprising  husband,  wife and minor  children;  or a
trustee or other fiduciary  purchasing for a single fiduciary account.  Employee
benefit plans qualified under Section 401 of the Internal  Revenue Code of 1986,
as amended,  organizations  tax exempt  under  Section  501(c)(3) or (13) of the
Internal  Revenue Code, and  non-qualified  employee  benefit plans that satisfy
uniform criteria are considered  "single persons" for this purpose.  The uniform
criteria are as follows:

     1.  Employees  must  authorize  the  employer,  if requested by a Fund,  to
receive in bulk and to distribute to each participant on a timely basis the Fund
prospectus, reports, and other shareholder communications.

     2.  Employees  participating  in a plan will be  expected  to make  regular
periodic  investments (at least annually).  A participant who fails to make such
investments  may be dropped  from the plan by the employer or the Fund 12 months
and 30 days after the last regular investment in his account. In such event, the
dropped participant would lose the discount on share purchases to which the plan
might then be entitled.

     3. The employer  must solicit its employees  for  participation  in such an
employee  benefit plan or authorize  and assist an  investment  dealer in making
enrollment solicitations.

Eligible  Employee  Benefit Plans.  The table of sales charges in the Prospectus
applies to sales to "eligible  employee benefit plans," except that the Fund may
sell shares at net asset value to "eligible  employee  benefit plans" which have
at least (1) $500,000  invested in the Seligman  Group of mutual funds or (2) 50
eligible employees to whom such plan is made available.  Such sales must be made
in connection with a payroll  deduction  system of plan funding or other systems
acceptable  to  Seligman  Data  Corp.,  the Fund's  shareholder  service  agent.
"Eligible  employee benefit plan" means any plan or arrangement,  whether or not
tax qualified,  which provides for the purchase of Fund shares.  Sales of shares
to such plans must be made in connection with a payroll deduction system of plan
funding or other system acceptable to Seligman Data Corp.

Such  sales are  believed  to require  limited  sales  effort and  sales-related
expenses and  therefore  are made at net asset value.  Contributions  or account
information for plan  participation  also should be transmitted to Seligman Data
Corp.  by methods  which it  accepts.  Additional  information  about  "eligible
employee  benefit  plans" is  available  from  financial  advisors  or  Seligman
Advisors.

Further  Types of  Reductions.  Class A shares  may also be  issued  without  an
initial sales charge to any registered unit investment trust which is the issuer
of periodic payment plan certificates, the net proceeds of which are invested in
Fund shares;  to separate  accounts  established  and maintained by an insurance
company which are exempt from  registration  under Section  3(c)(11) of the 1940
Act; to registered  representatives  and employees  (and their spouses and minor
children) of any dealer that has a sales  agreement with Seligman  Advisors;  to
financial  institution  trust  departments;  to registered  investment  advisers
exercising  discretionary  investment  authority with respect to the purchase of
Fund shares; to accounts of financial institutions or broker/dealers that charge
account management fees,  provided Seligman or one of its affiliates has entered
into  an  agreement  with  respect  to  such  accounts;  pursuant  to  sponsored
arrangements with organizations  which make  recommendations to, or permit group
solicitations of, its employees,  members or participants in connection with the
purchase of shares of the Fund;  to other  investment  companies in the Seligman
Group in connection with a deferred fee arrangement for outside  directors;  and
to "eligible  employee benefit plans" which have at least (1) $500,000  invested
in the Seligman  mutual funds or (2) 50 eligible  employees to whom such plan is
made available.


                                       20
<PAGE>

Class D

Class D shares may be  purchased  at a price  equal to the next  determined  net
asset  value,  without  an initial  sales  charge.  However,  Class D shares are
subject to a CDSC of 1% if the shares are redeemed  within one year of purchase,
charged as a percentage of the current net asset value or the original  purchase
price, whichever is less.

Systematic  Withdrawals.  Class D shareholders who reinvest both their dividends
and capital gain  distributions to purchase  additional  shares of the Fund, may
use the Fund's  Systematic  Withdrawal Plan to withdraw up to 10 of the value of
their  accounts  per year without the  imposition  of a CDSC.  Account  value is
determined as of the date the systematic withdrawals begin.

CDSC  Waivers.  The CDSC on Class D  shares  (and  certain  Class A  shares,  as
discussed above) will be waived or reduced in the following instances:

(1)  on  redemptions  following the death or  disability  (as defined in Section
     72(m)(7) of the  Internal  Revenue  Code) of a  shareholder  or  beneficial
     owner;

(2)  in connection with (1) distributions  from retirement plans qualified under
     Section  401(a) of the  Internal  Revenue  Code when such  redemptions  are
     necessary  to  make  distributions  to  plan  participants  (such  payments
     include,  but  are  not  limited  to,  death,  disability,  retirement,  or
     separation of service),  (2)  distributions  from a custodial account under
     Section  403(b)(7)  of the  Internal  Revenue  Code or an IRA due to death,
     disability,  minimum  distribution  requirements after attainment of age 70
     1/2 or, for accounts  established  prior to January 1, 1998,  attainment of
     age 59 1/2, and (3) a tax-free return of an excess contribution to an IRA;

(3)  in whole or in part, in connection  with shares sold to current and retired
     Directors of the Fund;

(4)  in whole or in part, in connection  with shares sold to any state,  county,
     or city or any instrumentality,  department,  authority, or agency thereof,
     which is prohibited by applicable  investment laws from paying a sales load
     or commission in connection with the purchase of any registered  investment
     management company;

(5)  in whole or in part, in connection with systematic withdrawals;

(6)  in connection with  participation  in the Merrill Lynch Small Market 401(k)
     Program.

If, with respect to a redemption of any Class A Class D shares sold by a dealer,
the CDSC is waived  because the  redemption  qualifies for a waiver as set forth
above,  the dealer shall remit to Seligman  Advisors  promptly  upon notice,  an
amount  equal to the  payment  or a  portion  of the  payment  made by  Seligman
Advisors at the time of sale of such shares.

Fund Reorganizations

Class A shares may be issued without an initial sales charge in connection  with
the acquisition of cash and securities owned by other investment companies.  Any
CDSC will be waived in connection with the redemption of shares of a Fund if the
Fund is combined with another  Seligman  mutual fund,  or in  connection  with a
similar reorganization transaction.

Payment in Securities.  In addition to cash, the Funds may accept  securities in
payment for Fund shares sold at the applicable  public offering price (net asset
value and, if applicable, any sales charge), although the Funds do not presently
intend to accept securities in payment for Fund shares.  Generally,  a Fund will
only consider  accepting  securities (l) to increase its holdings in a portfolio
security,  or (2) if  Seligman  determines  that the  offered  securities  are a
suitable  investment  for the  Fund and in a  sufficient  amount  for  efficient
management. Although no minimum has been established, it is expected that a Fund


                                       21
<PAGE>


would not  accept  securities  with a value of less than  $100,000  per issue in
payment for shares. A Fund may reject in whole or in part offers to pay for Fund
shares with securities, may require partial payment in cash for applicable sales
charges, and may discontinue  accepting securities as payment for Fund shares at
any time without  notice.  The Funds will not accept  restricted  securities  in
payment  for  shares.  The Funds will value  accepted  securities  in the manner
provided for valuing portfolio securities.

Offering Price

When you buy or sell Fund shares, you do so at the Class's net asset value (NAV)
next calculated  after Seligman  Advisors  accepts your request.  Any applicable
sales charge will be added to the purchase price for Class A shares.

NAV per share of each class of the Fund is determined as of the close of regular
trading on the New York Stock Exchange  (normally,  4:00 p.m.  Eastern time), on
each day that the NYSE is open for business. The NYSE is currently closed on New
Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good Friday,  Memorial
Day,  Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. The Fund
will  also  determine  NAV for  each  class  on each  day in  which  there  is a
sufficient degree of trading in the Fund's portfolio  securities that the NAV of
Fund shares might be materially affected.  NAV per share for a class is computed
by dividing such class's share of the value of the net assets of the Fund (i.e.,
the value of its assets less  liabilities)  by the total  number of  outstanding
shares of such class.  All expenses of the Fund,  including the management  fee,
are accrued daily and taken into account for the purpose of determining NAV. The
NAV of Class D shares will  generally be lower than the NAV of Class A shares as
a result of the higher 12b-1 fees with  respect to such shares.  It is expected,
however,  that the net asset  value per  share of the two  classes  will tend to
converge  immediately  after the  recording of  dividends,  which will differ by
approximately  the amount of the  distribution  and other class expenses accrual
differential between the classes.

The  securities  in  which  the  Fund  invests  are  traded   primarily  in  the
over-the-counter  market.  Municipal  securities and other  short-term  holdings
maturing in more than 60 days are valued on the basis of quotations  provided by
an independent pricing service, approved by the Trustees, which uses information
with respect to  transactions  in bonds,  quotations  from bond dealers,  market
transactions  in  comparable   securities  and  various   relationships  between
securities in determining  value. In the absence of such quotations,  fair value
will be  determined  in  accordance  with  procedures  approved by the Trustees.
Short-term holdings having remaining maturities of 60 days or less are generally
valued at amortized cost.

Generally, trading in certain securities such as municipal securities, corporate
bonds, US Government  securities,  and money market instruments is substantially
completed  each day at various times prior to the close of the NYSE.  The values
of such  securities  used in determining  the net asset value of a Fund's shares
are computed as of such times.

Specimen Price Make-Up

Under  the  current  distribution  arrangements  between  the Fund and  Seligman
Advisors,  Class A shares are sold with a maximum  initial sales charge of 4.75%
and Class D shares are sold at NAV(1).  Using each Class's NAV at September  30,
1998, the maximum offering price of the Fund's shares is as follows:

Class A

     Net asset value per share ....................................        $8.07

     Maximum sales charge (4.75% of offering price) ...............          .40
                                                                           -----

     Offering price to public .....................................        $8.47
                                                                           =====


                                       22
<PAGE>


Class D

     Net asset value and offering price per share(1) ..............        $8.08
                                                                           =====

- ----------
(1)  Class D shares are subject to a CDSC of 1% on  redemptions  within one year
     of purchase.

Redemption in Kind

The  procedures  for selling Fund shares under  ordinary  circumstances  are set
forth in the Prospectus. In unusual circumstances,  payment may be postponed, or
the right of  redemption  postponed  for more than seven  days,  if the  orderly
liquidation  of  portfolio  securities  is  prevented  by  the  closing  of,  or
restricted  trading  on, the NYSE  during  periods of  emergency,  or such other
periods  as ordered by the  Securities  and  Exchange  Commission.  Under  these
circumstances, redemption proceeds may be made in securities. If payment is made
in securities,  a shareholder may incur brokerage  expenses in converting  these
securities to cash.

                              Taxation of the Fund

The Fund is treated as a separate  corporation  for federal income tax purposes.
As a result, determinations of net investment income,  exempt-interest dividends
and net long-term and short-term  capital gain and loss will be made  separately
for the Fund.

The Fund is  qualified  and  intends  to  continue  to  qualify  as a  regulated
investment  company under  Subchapter M of the Internal  Revenue Code.  For each
year so qualified,  the Fund will not be subject to federal  income taxes on its
net investment  income and capital gains,  if any,  realized  during any taxable
year,  which it distributes to its  shareholders,  provided that at least 90% of
its net investment  income and net short-term  capital gains are  distributed to
shareholders each year.

Qualification as a regulated  investment company under the Internal Revenue Code
requires among other things, that (1) at least 90% of the annual gross income of
the  Fund  be  derived  from  dividends,  interest,  payments  with  respect  to
securities  loans  and  gains  from  the sale or other  disposition  of  stocks,
securities or  currencies,  or other income  (including but not limited to gains
from  options,  futures,  or  forward  contracts)  derived  with  respect to its
business of investing in such stocks, securities or currencies; (2) and the Fund
diversify  its holdings so that, at the end of each quarter of the taxable year,
(i) at least 50% of the market  value of the  Fund's  assets is  represented  by
cash, US Government  securities and other  securities  limited in respect of any
one issuer to an amount not greater than 5% of the Fund's  assets and 10% of the
outstanding  voting securities of such issuer, and (ii) not more than 25% of the
value of its assets is invested in the  securities of any one issuer (other than
US Government securities).

Federal Income Taxes

If, at the end of each quarter of its taxable  year,  at least 50% of the Fund's
total assets is invested in obligations  exempt from regular federal income tax,
the Fund will be eligible to pay dividends that are  excludable by  shareholders
from gross income for regular  federal income tax purposes.  The total amount of
such exempt  interest  dividends  paid by the Fund  cannot  exceed the amount of
federally  tax-exempt  interest  received  by the Fund  during the year less any
expenses allocable to the Fund.

Distributions  of net capital gains (i.e.,  the excess of net long-term  capital
gains over any net  short-term  losses) are taxable as long-term  capital  gain,
whether  received in cash or invested in  additional  shares,  regardless of how
long the shares have been held by a shareholder,  except that the portion of net
capital gains  representing  accrued market  discount on tax-exempt  obligations
acquired  after April 30, 1993 will be taxable as  ordinary  income.  Individual
shareholders  will be subject to federal  tax on  distributions  of net  capital
gains at a maximum rate of 20% if designated as derived from the Fund's  capital
gains from property held for more than one year. Net Capital gain of a corporate
shareholder is taxed at the same rate as ordinary income. Distributions from the
Fund's other  investment  income (other than exempt



                                       23
<PAGE>


interest  dividends)  or from net  realized  short-term  gain  will  taxable  to
shareholders  as  ordinary  income,  whether  received  in cash or  invested  in
additional  shares.  Distributions  generally  will  not  be  eligible  for  the
dividends  received  deduction allowed to corporate  shareholders.  Shareholders
receiving distributions in the form of additional shares issued by the Fund will
be treated for federal income tax purposes as having  received a distribution in
an amount  equal to the fair  market  value on the date of  distribution  of the
shares received.

Interest on  indebtedness  incurred or  continued to purchase or carry shares of
the Fund will not be  deductible  for federal  income tax purposes to the extent
that the Fund's distributions are exempt from federal income tax.

Any gain or loss  realized  upon a sale or redemption of shares in the Fund by a
shareholder  who is not a dealer in  securities  will  generally be treated as a
long-term  capital  gain or loss if the shares  have been held for more than one
year and otherwise as a short-term capital gain or loss. Individual shareholders
will be subject to federal  income tax on net capital gains at a maximum rate of
20% in  respect of shares  held for more than one year.  Net  capital  gain of a
corporate shareholder is taxed at the same rate as ordinary income.  However, if
shares on which a long-term  capital  gain  distribution  has been  received are
subsequently  sold or redeemed  and such shares have been held for six months or
less, any loss realized will be treated as long-term  capital loss to the extent
that it offsets the long-term capital gain  distribution.  In addition,  no loss
will be  allowed  on the sale or other  disposition  of  shares  of the Fund if,
within a period  beginning  30 days before the date of such sale or  disposition
and  ending 30 days  after such date,  the  holder  acquires  (including  shares
acquired  through  dividend  reinvestment)  securities  that  are  substantially
identical to the shares of the Fund.

In  determining  gain or loss on shares  of the Fund that are sold or  exchanged
within 90 days after acquisition,  a shareholder generally will not be permitted
to  include  in the tax basis  attributable  to such  shares  the  sales  charge
incurred in acquiring such shares to the extent of any  subsequent  reduction of
the sales charge by reason of the Exchange or Reinstatement Privilege offered by
the Fund. Any sales charge not taken into account in  determining  the tax basis
of shares sold or exchanged  within 90 days after  acquisition  will be added to
the  shareholder's  tax basis in the shares acquired pursuant to the Exchange or
Reinstatement Privilege.

   
Shareholders  are urged to consult their tax advisors  concerning  the effect of
federal income taxes in their individual circumstances.  In particular,  persons
who may be  "substantial  users" (or "related  person" of substantial  users) of
facilities  financed by industrial  development  bonds or private activity bonds
should consult the tax advisors before purchasing shares of the Fund.
    

Florida Taxes

Florida  does  not  presently  impose  an  income  tax on  individuals  and thus
individual  shareholders  of the Florida Fund will not be subject to any Florida
state  income tax on  distributions  received  from the Florida  Fund.  However,
Florida  imposes an  intangible  personal  property tax on shares of the Florida
Fund owned by a Florida  resident  on January 1 of each year  unless such shares
qualify for an exemption from that tax. The Municipal  Series Trust has received
a  Technical  Assistance  Advisement  from the State of Florida,  Department  of
Revenue,  to the  effect  that  shares of the  Florida  Fund  owned by a Florida
resident  will be exempt from the Florida  Intangible  Personal  Property Tax so
long as the  Florida  Fund  portfolio  includes  on  January 1 of each year only
assets,  such as Florida  tax-exempt  securities  and United  States  Government
securities,  that are exempt from the Florida Intangible  Personal Property Tax.
Corporate  shareholders  may be subject to Florida income taxes depending on the
portion of the income  related to the Florida  Fund that is allocable to Florida
under applicable Florida law.

Unless a shareholder includes a certified taxpayer identification number (social
security number for  individuals) on the account  application and certifies that
the  shareholder is not subject to backup  withholding,  the Fund is required to
withhold  and remit to the US  Treasury  a portion  of  distributions  and other
reportable  payments to the shareholder.  The rate of backup withholding is 31%.
Shareholders



                                       24
<PAGE>


should be aware that,  under  regulations  promulgated  by the Internal  Revenue
Service,  the Fund may be fined  $50  annually  for  each  account  for  which a
certified taxpayer identification number is not provided. In the event that such
a fine is  imposed,  the Fund may charge a service  fee of up to $50 that may be
deducted from the  shareholder's  account and offset  against any  undistributed
dividends  and capital gain  distributions.  The Fund also reserves the right to
close  any  account  which  does not have a  certified  taxpayer  identification
number.

                                  Underwriters

Distribution of Securities

Seligman  Municipal  Series  Trust  and  Seligman  Advisors  are  parties  to  a
Distributing  Agreement dated January 1, 1993 under which Seligman Advisors acts
as the exclusive agent for distribution of shares of the Fund. Seligman Advisors
accepts orders for the purchase of Fund shares, which are offered  continuously.
As general  distributor  of the Fund's shares of beneficial  interest,  Seligman
Advisors allows  reallowances to all dealers on sales of Class A shares,  as set
forth above under "Dealer  Reallowances."  Seligman Advisors retains the balance
of sales charges and any CDSCs paid by investors.

   
Total sales charges paid by  shareholders  of Class A shares of the Fund for the
fiscal years ended  September  30, 1998,  1997,  and 1996 are shown below.  Also
shown are the amounts of Class A sales  charges  that were  retained by Seligman
Advisors:

                             Total Sales Charges Paid    Amount of Class A Sales
                                  by Shareholders         Charges Retained by
Fiscal Year                      on Class A Shares          Seligman Advisors
- -----------                      -----------------          -----------------
1998                                   $69,408                    $8,741
1997                                    76,147                     9,343
1996                                    82,207                     9,355

For the fiscal years ended September 30, 1998, 1997, and 1996, Seligman Advisors
retained  CDSC  charges  on Class D shares  amounting  to $277,  $0,  and  $138,
respectively.
    

Compensation

   
Seligman Advisors received the following commissions and other compensation from
the Fund during its fiscal year ended September 30, 1998:

                           Compensation on
      Net Underwriting     Redemptions and
        Discounts and        Repurchases
         Commissions       (CDSC on Class A
        (Class A Sales       and Class D        Brokerage            Other 
      Charge Retained)        Retained)        Commissions       Compensation 
      ----------------        ---------        -----------       ------------ 
           $8,741                $277              $0                 $0
    

Other Payments

Seligman  Advisors shall pay  broker/dealers,  from its own resources,  a fee on
purchases of Class A shares of  $1,000,000  or more (NAV sales),  calculated  as
follows:  1.00% of NAV sales up to but not  including  $2  million;  .80% of NAV
sales from $2 million up to but not including $3 million; .50% of NAV sales from
$3 million up to but not  including  $5  million;  and .25% of NAV sales from $5
million and above.  The calculation of the fee will be based on assets held by a
"single  person,"  including an individual,  members of a family unit comprising
husband, wife and minor children purchasing securities 


                                       25
<PAGE>


for their own account,  or a trustee or other fiduciary  purchasing for a single
fiduciary  account  or  single  trust.  Purchases  made by a  trustee  or  other
fiduciary for a fiduciary account may not be aggregated purchases made on behalf
of any other fiduciary or individual account.

   
Seligman Advisors shall also pay broker/dealers,  from its own resources,  a fee
on assets of certain  investments in Class A shares of the Seligman mutual funds
participating  in an "eligible  employee  benefit plan" that are attributable to
the particular broker/dealer. The shares eligible for the fee are those on which
an initial sales charge was not paid because either the  participating  eligible
employee benefit plan has at least (1) $500,000  invested in the Seligman mutual
funds or (2) 50 eligible employees to whom such plan is made available.  Class A
shares  representing  only an initial  purchase of Seligman Cash Management Fund
are not eligible for the fee. Such shares will become  eligible for the fee once
they are exchanged for shares of another  Seligman  mutual fund.  The payment is
based on  cumulative  sales  for each Plan  during a single  calendar  year,  or
portion thereof.  The payment  schedule,  for each calendar year, is as follows:
1.00% of sales up to but not including $2 million; .80% of sales from $2 million
up to but not including $3 million;  .50% of sales from $3 million up to but not
including $5 million; and .25% of sales from $5 million and above.
    

Seligman  Advisors may from time to time assist  dealers by, among other things,
providing  sales  literature  to, and  holding  informational  programs  for the
benefit  of,  dealers'  registered   representatives.   Dealers  may  limit  the
participation of registered  representatives in such  informational  programs by
means of sales  incentive  programs which may require the sale of minimum dollar
amounts of shares of Seligman mutual funds.  Seligman  Advisors may from time to
time pay a bonus or other  incentive to dealers that sell shares of the Seligman
mutual funds. In some instances, these bonuses or incentives may be offered only
to certain dealers which employ registered  representatives who have sold or may
sell a  significant  amount of shares of the Fund and/or  certain  other  mutual
funds managed by Seligman during a specified period of time. Such bonus or other
incentive may take the form of payment for travel expenses,  including  lodging,
incurred in connection with trips taken by qualifying registered representatives
and members of their families to places within or outside the United States. The
cost to Seligman  Advisors of such promotional  activities and payments shall be
consistent  with the rules of the National  Association  of Securities  Dealers,
Inc., as then in effect.

                         Calculation of Performance Data

   
Class A

The  annualized  yield for the 30-day  period ended  September  30, 1998 for the
Fund's Class A shares was 3.74%.  The annualized  yield was computed by dividing
the Fund's net  investment  income per share earned during this 30-day period by
the maximum offering price per share (i.e., the net asset value plus the maximum
sales load of 4.75% of the net amount invested) on September 30, 1998, which was
the last day of this  period.  The average  number of Class A shares of the Fund
was 5,276,466,  which was the average daily number of shares  outstanding during
the 30-day period that were eligible to receive  dividends.  Income was computed
by totaling the interest earned on all debt obligations during the 30-day period
and subtracting  from that amount the total of all recurring  expenses  incurred
during the period.  The 30-day yield was then  annualized  on a  bond-equivalent
basis  assuming  semi-annual  reinvestment  and  compounding  of net  investment
income.

The tax equivalent  annualized  yield for the 30-day period ended  September 30,
1998 for the  Fund's  Class A shares was 6.19%.  The tax  equivalent  annualized
yield was computed by first computing the annualized  yield as discussed  above.
Then the portion of the yield attributable to securities the income of which was
exempt for federal income tax purposes was determined. This portion of the yield
was then  divided by one minus 39.6% (39.6%  being the assumed  maximum  federal
income tax rate for individual taxpayers).

The average  annual  total return for the Fund's Class A shares for the one-year
period ended  September 30, 1998 was 3.97%.  The average annual total return for
the Fund's Class A shares for the five-year  
    


                                       26
<PAGE>


   
period ended  September 30, 1998 was 4.76%.  The average annual total return for
the Fund's Class A shares for the ten-year  period ended  September 30, 1998 was
7.75%. These returns were computed by assuming a hypothetical initial payment of
$1,000 in Class A shares of the Fund.  From this $1,000,  the maximum sales load
of $47.50 (4.75% of public  offering  price) was  deducted.  It was then assumed
that all of the  dividends and  distributions  by the Fund's Class A shares over
the relevant time period were reinvested. It was then assumed that at the end of
the one-year period,  the five-year period, and the ten-year period of the Fund,
the  entire  amount was  redeemed.  The  average  annual  total  return was then
calculated by  determining  the annual rate required for the initial  payment to
grow to the amount which would have been received  upon  redemption  (i.e.,  the
average annual compound rate of return).

Class D

The  annualized  yield for the 30-day  period ended  September  30, 1998 for the
Fund's Class D shares was 3.15%.  The annualized yield was computed as for Class
A shares by dividing the Fund's net  investment  income per share earned  during
this 30-day period by the maximum  offering price per share (i.e., the net asset
value) on September 30, 1998 which was the last day of this period.  The average
number of Class D shares of the Fund was  240,473,  which was the average  daily
number of shares  outstanding  during the 30-day  period  that were  eligible to
receive  dividends.  Income was computed by totaling the interest  earned on all
debt  obligations  during the 30-day period and subtracting from that amount the
total of all recurring expenses incurred during the period. The 30-day yield was
then annualized on a bond-equivalent basis assuming semi-annual reinvestment and
compounding of net investment income.

The tax equivalent  annualized  yield for the 30-day period ended  September 30,
1998 for the  Fund's  Class D shares was 5.22%.  The tax  equivalent  annualized
yield was computed as discussed above for Class A shares.

The average  annual  total return for the Fund's Class D shares for the one-year
period ended  September 30, 1998 was 7.32%.  The average annual total return for
the Fund's Class D shares for the period since inception  through  September 30,
1998 was 4.90%.  These returns were computed by assuming a hypothetical  initial
payment  of $1,000  in Class D shares of the Fund and that all of the  dividends
and  distributions  by the Fund's Class D shares over the  relevant  time period
were reinvested.  It was then assumed that at the end of the one-year period and
the  period  since  inception  of the Fund,  the  entire  amount  was  redeemed,
subtracting the 1% CDSC, if applicable.

The tables below  illustrate  the total  returns on a $1,000  investment  in the
Fund's Class A and Class D shares for the ten years ended  September 30, 1998 or
from the Class's inception through  September 30, 1998,  assuming  investment of
all dividends and capital gain distributions.
    

<TABLE>
<CAPTION>
                                     Class A
                                     -------

                          Value of          Value of                         Total Value
        Year              Initial         Capital Gain       Value of             Of              Total
       Ended(1)        Investment(2)     Distributions       Dividends      Investment(2)     Return(1)(3)
       --------        -------------     -------------       ---------      -------------     ------------
<S>                         <C>                <C>               <C>            <C>                  <C>
      9/30/89               $ 993              $ --              $68            $1,061
      9/30/90                 980                --              136             1,116
      9/30/91               1,047                --              219             1,266
      9/30/92               1,074                --              309             1,383
      9/30/93               1,165                 2              426             1,593
      9/30/94               1,043                24              462             1,529
      9/30/95               1,096                26              574             1,696
      9/30/96               1,090                43              657             1,790
      9/30/97               1,108                69              756             1,933
   
      9/30/98               1,146                90              874             2,110               111.02%
    
</TABLE>


                                       27
<PAGE>


<TABLE>
<CAPTION>
                                     Class D


                          Value of          Value of                         Total Value
        Year              Initial         Capital Gain       Value of             of              Total
       Ended(1)        Investment(2)     Distributions       Dividends      Investment(2)     Return(1)(3)
       --------        -------------     -------------       ---------      -------------     ------------
<S>                          <C>               <C>               <C>             <C>             <C>   
      9/30/94                $906              $ --              $28             $ 934
      9/30/95                 954                --               74             1,028
      9/30/96                 948                11              118             1,077
      9/30/97                 964                26              164             1,154
   
      9/30/98                 997                38              215             1,250           24.96%
    
</TABLE>


- ----------
(1)  For the ten-year  period ended  September 30, 1998 for Class A shares;  and
     from commencement of operations for Class D shares on February 1, 1994.

   
(2)  The "Value of Initial  Investment"  as of the date  indicated  reflects the
     effect of the maximum  sales charge and CDSC, if  applicable,  assumes that
     all  dividends  and  capital  gain  distributions  were taken in cash,  and
     reflects  changes in the net asset value of the shares  purchased  with the
     hypothetical  initial investment.  "Total Value of Investment" reflects the
     effect of the CDSC, if applicable,  and assumes investment of all dividends
     and capital gain distributions.
    

(3)  Total  return  for each  Class  of the Fund is  calculated  by  assuming  a
     hypothetical  initial  investment  of $1,000 at the beginning of the period
     specified,  subtracting  the  maximum  sales load or CDSC,  if  applicable;
     determining total value of all dividends and distributions  that would have
     been paid during the period on such shares  assuming  that each dividend or
     distribution  was  invested  in  additional  shares  at  net  asset  value;
     calculating the total value of the investment at the end of the period; and
     finally,  by dividing the difference between the amount of the hypothetical
     initial  investment at the beginning of the period and its value at the end
     of the period by the amount of the hypothetical initial investment.

Seligman  waived its fees and  reimbursed  certain  expenses  during some of the
periods above, which positively affected the performance results presented.

   
The Fund's total returns and average  annual total  returns  quoted above do not
reflect the  deduction  of 12b-1 fees for periods  through  December  27,  1990,
because  the  12b-1  Plan was  implemented  on that  date.  If these  fees  were
reflected, the performance results presented would have been lower.
    

                              Financial Statements

The Annual Report to  Shareholders  of Seligman  Municipal  Series Trust for the
fiscal year ended  September 30, 1998 contains a schedule of the  investments of
the  Fund  as of  September  30,  1998,  as  well  as  certain  other  financial
information as of that date. The financial  statements and notes included in the
Annual Report,  and the Independent  Auditors' Report thereon,  are incorporated
herein by reference.  The Annual Report will be furnished,  without  charge,  to
investors who request copies of this SAI.

                               General Information

The Trustees are  authorized to classify or  reclassify  and issue any shares of
beneficial  interest  of the  Trust  into any  number of other  classes  without
further action by  shareholders.  The 1940 Act requires that where more than one
class exists,  each class must be preferred over all other classes in respect of
assets specifically allocated to such class.

As a general  matter,  the Trust will not hold  annual or other  meetings of the
shareholders.  This is because the Declaration of Trust provides for shareholder
voting only (a) for the election or removal of one or more Trustees if a meeting
is  called  for that  purpose,  (b) with  respect  to any  contract  as to which
shareholder  approval  is  required  by the 1940 Act,  (c) with  respect  to any
termination or reorganization of the Trust or any series, including the Fund, to
the extent and as provided in the Declaration of Trust,  (d) with respect to any
amendment of the  Declaration of Trust (other than amendments  establishing  and
designating  new  series,  abolishing  series  when  there are no units  thereof
outstanding, changing the name of the Trust or the name of any series, supplying
any omission,  curing any ambiguity or curing,  correcting or supplementing  any
provision  thereof which is  internally  inconsistent  with any other  



                                       28
<PAGE>


provision  thereof or which is  defective or  inconsistent  with the 1940 Act or
with the  requirements  of the Code,  or applicable  regulations  for the Fund's
obtaining  the  most  favorable  treatment  thereunder  available  to  regulated
investment  companies),  which amendments  require approval by a majority of the
Shares  entitled  to  vote,  (e) to the same  extent  as the  stockholders  of a
Massachusetts  business  corporation  as  to  whether  or  not a  court  action,
proceeding,  or claim should or should not be brought or maintained derivatively
or as a class  action on behalf of the Trust or the  shareholders,  and (f) with
respect to such additional  matters  relating to the Trust as may be required by
the  1940  Act,  the  Declaration  of  Trust,  the  By-laws  of the  Trust,  any
registration  of the Trust with the  Securities  and  Exchange  Commission  (the
"Commission")  or any  state,  or as the  Trustees  may  consider  necessary  or
desirable.  Each Trustee serves until the next meeting of shareholders,  if any,
called for the purpose of considering the election or reelection of such Trustee
or of a successor to such Trustee,  and until the election and  qualification of
his  successor,  if any,  elected at such meeting,  or until such Trustee sooner
dies,  resigns,  retires or is removed by the  shareholders or two-thirds of the
Trustees.

The shareholders of the Trust have the right, upon the declaration in writing or
vote of more than  two-thirds  of the Trust's  outstanding  shares,  to remove a
Trustee. The Trustees will call a meeting of shareholders to vote on the removal
of a Trustee  upon the written  request of the record  holders of ten percent of
its shares.  In addition,  whenever ten or more  shareholders of record who have
been such for at least six months  preceding  the date of  application,  and who
hold in the aggregate either shares having a net asset value of at least $25,000
or at least 1 per centum of the  outstanding  shares,  whichever is less,  shall
apply to the  Trustees in writing,  stating that they wish to  communicate  with
other  shareholders  with a view to  obtaining  signatures  to a  request  for a
meeting for the purpose of voting upon the question of removal of any Trustee or
Trustees and accompanied by a form of communication  and request which they wish
to transmit,  the Trustee  shall within five business days after receipt of such
application  either: (1) afford to such applicants access to a list of the names
and addresses of all  shareholders as recorded on the books of the Trust; or (2)
inform such applicants as to the  approximate  number of shareholders of record,
and the approximate cost of mailing to them the proposed  communication and form
of requests.  If the Trustees elect to follow the latter  course,  the Trustees,
upon the  written  request of such  applicants,  accompanied  by a tender of the
material to be mailed and of the  reasonable  expenses of mailing,  shall,  with
reasonable promptness, mail such material to all shareholders of record at their
addresses as recorded on the books,  unless within five business days after such
tender the Trustees shall mail to such  applicants and file with the Commission,
together with a copy of the material to be mailed, a written statement signed by
at least a majority of the Trustees to the effect that in their  opinion  either
such  material  contains  untrue  statements  of fact or omits  to  state  facts
necessary to make the statements  contained therein not misleading,  or would be
in violation of applicable law, and specifying the basis of such opinion.  After
opportunity for hearing upon the objections  specified in the written  statement
so filed,  the  Commission  may,  and if  demanded  by the  Trustees  or by such
applicants  shall,  enter  an  order  either  sustaining  one or  more  of  such
objections or refusing to sustain any of them. If the Commission  shall enter an
order refusing to sustain any of such  objections,  or if, after the entry of an
order  sustaining one or more of such  objections,  the  Commission  shall find,
after notice and opportunity for hearing,  that all objections so sustained have
been met, and shall enter an order so declaring,  the Trustees shall mail copies
of such material to all shareholders with reasonable  promptness after the entry
of such order and the renewal of such tender.

Rule 18f-2 under the 1940 Act provides that any matter  required to be submitted
by the provisions of the 1940 Act or applicable state law, or otherwise,  to the
holders of the outstanding  voting  securities of an investment  company such as
the  Trust  shall  not be deemed to have  been  effectively  acted  upon  unless
approved by the holders of a majority of the  outstanding  shares of each series
affected by such  matter.  Rule 18f-2  further  provides  that a series shall be
deemed to be affected by a matter  unless it is clear that the interests of each
series in the matter are  substantially  identical  or that the matter  does not
significantly affect any interest of such series.  However, the Rule exempts the
selection  of  independent  public   accountants,   the  approval  of  principal
distributing  contracts  and the election of trustees  from the separate  voting
requirements of the Rule.


                                       29
<PAGE>


The  shareholders  of  a  Massachusetts  business  trust  could,  under  certain
circumstances,  be held  personally  liable  as  partners  for its  obligations.
However,  the Declaration of Trust contains an express disclaimer of shareholder
liability for acts or  obligations of the Trust.  The  Declaration of Trust also
provides  for  indemnification  and  reimbursement  of expenses out of a series'
assets  for any  shareholder  held  personally  liable for  obligations  of such
series.

Custodian.  Investors  Fiduciary Trust Company,  801 Pennsylvania,  Kansas City,
Missouri 64105,  serves as custodian for the Fund. It also maintains,  under the
general  supervision of Seligman,  the accounting records and determines the net
asset value for the Fund.

   
Auditors.  Deloitte & Touche LLP,  independent  auditors,  have been selected as
auditors of the Fund. Their address is Two World Financial Center,  New York, NY
10281.
    



                                       30
<PAGE>


                                   Appendix A

Moody's Investors Service, Inc. ("Moody's")
Municipal Bonds

Aaa:  Municipal  bonds which are rated Aaa are judged to be of the best quality.
They  carry the  smallest  degree of  investment  risk.  Interest  payments  are
protected  by a large or by an  exceptionally  stable  margin and  principal  is
secure. While the various protective elements are likely to change, such changes
as can be  visualized  are most  unlikely  to impair  the  fundamentally  strong
position of such issues.

Aa:  Municipal  bonds which are rated Aa are judged to be of high quality by all
standards. Together with the Aaa group they comprise what are generally known as
high  grade  bonds.  They are rated  lower  than Aaa bonds  because  margins  of
protection may not be as large or  fluctuation of protective  elements may be of
greater  amplitude  or  there  may be  other  elements  present  which  make the
long-term risks appear somewhat larger than in Aaa securities.

A:  Municipal  bonds  which  are  rated  A  possess  many  favorable  investment
attributes and are to be considered as upper medium grade  obligations.  Factors
giving  security to principal and interest are considered  adequate but elements
may be present which  suggest a  susceptibility  to  impairment  sometime in the
future.

Baa:  Municipal  bonds  which  are  rated Baa are  considered  as  medium  grade
obligations,  i.e.,  they are  neither  highly  protected  nor  poorly  secured.
Interest  payments and principal  security  appear  adequate for the present but
certain  protective  elements  may  be  characteristically  lacking  or  may  be
unreliable over any great length of time. Such bonds lack outstanding investment
characteristics and in fact may have speculative characteristics as well.

Ba: Municipal bonds which are rated Ba are judged to have speculative  elements;
their future  cannot be  considered  as  well-assured.  Often the  protection of
interest  and  principal  payments  may be very  moderate,  and thereby not well
safeguarded  during  other good and bad times over the  future.  Uncertainty  of
position characterizes bonds in this class.

B:  Municipal  bonds which are rated B  generally  lack  characteristics  of the
desirable  investment.  Assurance  of  interest  and  principal  payments  or of
maintenance  of other terms of the contract  over any long period of time may be
small.

Caa:  Municipal bonds which are rated Caa are of poor standing.  Such issues may
be in  default  or there may be  present  elements  of danger  with  respect  to
principal or interest.

Ca:  Municipal  bonds  which  are  rated  Ca  represent  obligations  which  are
speculative  in high  degree.  Such  issues  are often in  default or have other
marked shortcomings.

C:  Municipal  bonds which are rated C are the lowest rated class of bonds,  and
issues so rated can be  regarded  as having  extremely  poor  prospects  of ever
attaining any real investment standing.

Moody's  applies  numerical  modifiers  (1,  2 and  3) in  each  generic  rating
classification  from Aa  through B in its  corporate  bond  rating  system.  The
modifier 1 indicates  that the  security  ranks in the higher end of its generic
rating  category;  modifier 2  indicates  a mid-range  ranking;  and  modifier 3
indicates that the issuer ranks in the lower end of its generic rating category.

Municipal Notes

Moody's  ratings for municipal notes and other  short-term  loans are designated
Moody's  Investment  Grade (MIG).  This  distinction  is in  recognition  of the
differences  between  short-term  and long-term  credit risk.  Loans bearing the
designation  MIG 1 are  of the  best  quality,  enjoying  strong  protection  by


                                       31
<PAGE>


established  cash  flows of funds  for their  servicing  or by  established  and
broad-based access to the market for refinancing.  Loans bearing the designation
MIG 2 are of high  quality,  with margins of  protection  ample  although not so
large as in the  preceding  group.  Loans bearing the  designation  MIG 3 are of
favorable  quality,  with all security  elements  accounted  for but lacking the
undeniable  strength of the preceding  grades.  Market access for refinancing in
particular, is likely to be less well established. Notes bearing the designation
MIG 4 are judged to be of adequate  quality,  carrying  specific risk but having
protection  commonly  regarded  as required of an  investment  security  and not
distinctly or predominantly speculative.

Commercial Paper

Moody's Commercial Paper Ratings are opinions of the ability of issuers to repay
punctually promissory senior debt obligations not having an original maturity in
excess of one year.  Issuers  rated  "Prime-1"  or "P-1"  indicates  the highest
quality repayment capacity of the rated issue.

The  designation  "Prime-2"  or "P-2"  indicates  that the  issuer  has a strong
capacity for repayment of senior  short-term  promissory  obligations.  Earnings
trends and  coverage  ratios,  while sound,  may be more  subject to  variation.
Capitalization characteristics, while still appropriate, may be more affected by
external conditions. Ample alternative liquidity is maintained.

The  designation  "Prime-3" or "P-3" indicates that the issuer has an acceptable
capacity  for  repayment of  short-term  promissory  obligations.  The effect of
industry  characteristics  and  market  compositions  may  be  more  pronounced.
Variability in earnings and  profitability may result in changes in the level of
debt protection measurements and may require relatively high financial leverage.
Adequate alternate liquidity is maintained.

Issues rated "Not Prime" do not fall within any of the Prime rating categories.

Standard & Poor's Corporation ("S&P")
Municipal Bonds

AAA:  Municipal bonds rated AAA are highest grade  obligations.  Capacity to pay
interest and repay principal is extremely strong.

AA: Municipal bonds rated AA have a very strong degree of safety and very strong
capacity to pay interest and repay  principal and differs from the highest rated
issues only in small degree.

A:  Municipal  bonds rated A are  regarded as upper  medium  grade.  They have a
strong  degree  of safety  and  capacity  to pay  interest  and repay  principal
although  they are  somewhat  more  susceptible  in the long term to the adverse
effects of changes in circumstances and economic  conditions than debt in higher
rated categories.

BBB:  Municipal bonds rated BBB are regarded as having a satisfactory  degree of
safety and capacity to pay interest and re-pay principal.  Whereas they normally
exhibit adequate protection parameters,  adverse economic conditions or changing
circumstances are more likely to lead to a weakened capacity to pay interest and
re-pay  principal  for bonds in this  category  than for  bonds in higher  rated
categories.

BB, B, CCC,  CC:  Municipal  bonds  rated  BB,  B, CCC and CC are  regarded,  on
balance,  as predominantly  speculative with respect to capacity to pay interest
and pre-pay principal in accordance with the terms of the bond. BB indicates the
lowest degree of  speculation  and CC the highest degree of  speculation.  While
such bonds will likely have some quality and protective  characteristics,  these
are  outweighed  by  large  uncertainties  or major  risk  exposure  to  adverse
conditions.

C: The rating C is reserved for income bonds on which no interest is being paid.


                                       32
<PAGE>


D: Bonds rated D are in default,  and payment of interest  and/or  repayment  of
principal is in arrears.

NR:  Indicates  that no rating has been  requested,  that there is  insufficient
information  on which to base a  rating  or that S&P does not rate a  particular
type of bond as a matter of policy.

Municipal Notes

SP-1: Very strong or strong capacity to pay principal and interest. Those issues
determined to possess  overwhelming safety  characteristics will be given a plus
(+) designation.

SP-2:  Satisfactory capacity to pay principal and interest.

Commercial Paper

S&P Commercial Paper ratings are current assessments of the likelihood of timely
payment of debts having an original maturity of no more than 365 days.

A-1: The A-1 designation  indicates that the degree of safety  regarding  timely
payment is very strong.

A-2:   Capacity  for  timely   payment  on  issues  with  this   designation  is
satisfactory.  However,  the  relative  degree  of  safety is not as high as for
issues designated "A-1".

A-3: Issues carrying this designation have adequate capacity for timely payment.
They are,  however,  more  vulnerable  to the  adverse  effects  of  changes  in
circumstances than obligations carrying the higher designations.

B:  Issues  rated "B" are  regarded as having only a  speculative  capacity  for
timely payment.

C: This  rating is  assigned  to  short-term  debt  obligations  with a doubtful
capacity of payment.

D:  Debt rated "D" is in payment default.

NR:  Indicates  that no rating has been  requested,  that there is  insufficient
information  on which to base a  rating  or that S&P does not rate a  particular
type of bond as a matter of policy.

The ratings  assigned  by S&P may be  modified by the  addition of a plus (+) or
minus (-) sign to show relative standing within its major rating categories.


                                       33
<PAGE>


                                   Appendix B

       RISK FACTORS REGARDING INVESTMENTS IN FLORIDA MUNICIPAL SECURITIES

The  following  information  as to certain  Florida  considerations  is given to
investors  in view of the Fund's  policy of  concentrating  its  investments  in
Florida  issues.  This  information  is derived from sources that are  generally
available  to  investors  and  is  believed  to be  accurate.  This  information
constitutes only a brief summary,  does not purport to be a complete description
and has not been independently verified.

Florida's financial operations are considerably different than most other states
because,  under  the  State's  constitution,  there  is no state  income  tax on
individuals.  Florida's  constitution prohibits the levy, under the authority of
the State,  of an individual  income tax upon the income of natural  persons who
are  residents or citizens of Florida in excess of amounts which may be credited
against or  deducted  from any  similar  tax levied by the United  States or any
other  state.  Accordingly,  a  constitutional  amendment  would be necessary to
impose a state individual  income tax in excess of the foregoing  constitutional
limitations.  The lack of an income tax exposes total State tax  collections  to
more  volatility  than  would  otherwise  be the case  and,  in the  event of an
economic  downswing,  could  affect the  State's  ability to pay  principal  and
interest in a timely  manner.  Florida has a  proportionally  greater  number of
persons of retirement age; a factor that makes  Florida's  property and transfer
payment  taxes a relatively  more  important  source of State  funding.  Because
transfer  payments are  typically  less  sensitive  to the  business  cycle than
employment income, they may act as a stabilizing force in weak economic periods.

   
Florida  imposes an income tax on corporate  income  allocable to the State,  as
well as an ad valorem tax on intangible  personal property,  sales and use taxes
and other  miscellaneous  taxes. These taxes are a major source of funds to meet
state  expenses,  including  repayment of, and interest on,  obligations  of the
State.  Financial  operations of the State of Florida  covering all receipts and
expenditures  are maintained  through the use of four funds (the General Revenue
Fund, Trust Funds, the Working Capital Fund and The Budget  Stabilization Fund).
The General Revenue Fund receives the majority of State tax revenues.  The Trust
Funds consist of monies received by the State which under law or trust agreement
are segregated for a purpose  authorized by law. Revenues in the General Revenue
Fund  which are in excess of the  amount  needed to meet  appropriations  may be
transferred to the Working Capital Fund. The Florida  Constitution  and Statutes
mandate  that the  State  budget be kept in  balance  from  currently  available
revenues  each State  fiscal  year  (July 1 - June 30).  The  following  data is
provided by the Florida  Consensus  Estimating  Conference,  which  adjusted and
updated  actual and revenue  forecasts  on November 13, 1998 in order to support
the State's  budgeting and planning  process.  For fiscal year 1998 - 1999,  the
estimated  General Revenue Fund and Working Capital Fund is $18.78 billion.  The
projected  year end balance of the  combined  General  Revenue  Fund and Working
Capital Fund is $592.7 million.  Including the $789.6 million balance  currently
in the Budget Stabilization Fund, total reserves are projected to stand at $1.38
billion.  For fiscal year 1999 - 2000 budget incorporates a 3.9 percent increase
in Net General Revenues over fiscal year 1998 - 99. For fiscal year 1997 - 1998,
the estimated Florida and United States  unemployment  rates were both 4.7%. For
fiscal year 1998 - 1999,  the estimated  Florida and United States  unemployment
rates are 5.0% and 5.1%,  respectively.  For the  fiscal  year 1999 - 2000,  the
estimated Florida and United States unemployment rates are both 5.5%.
    

In 1993,  Florida's  constitution  was amended to limit the annual growth in the
assessed  valuation  of  residential  property,  and  which,  over  time,  could
constrain  growth  in  property  taxes,  a major  source  of  revenue  for local
governments. While no immediate ratings implications are expected, the amendment
could have a negative impact on the financial  performance of local  governments
over time and lead to ratings  revisions which may have a negative impact on the
prices of affected bonds. In 1994, the Florida constitution was amended to limit
state revenue  collections  in any fiscal year to,  subject to  exception,  that
which  was  allowed  in the  prior  fiscal  year  plus a  growth  factor,  to be
determined by reference to the average  annual  growth rate in Florida  personal
income over the previous five years.

   
Florida has  historically  experienced  substantial  population  increases  as a
result of migration  to Florida  from other areas of the United  States and from
foreign  countries,  although  recent  population  growth  has  
    


                                       34
<PAGE>


   
been modest by historical standards. Between 1960 and 1995, Florida's population
grew by 9.2 million people,  a 185% increase or more than 4 times the 46% growth
rate in the U.S.  population  over the same period.  However,  after rising from
1.4% in 1992 - 93 to  1.9%  in  1993-94,  population  growth  has  leveled  off,
averaging  1.9% in each of the last  three  years.  The  general  population  is
expected to grow at a rate of 1.8% in 1998-99 and 1.7% in 1999-2000. As a result
of population growth, the State may experience a need for additional revenues to
meet increased burdens on the various public and social services provided by the
State. Florida's ability to obtain increased revenues to meet these burdens will
be  dependent in part upon the State's  ability to foster  business and economic
growth.  The State's  business and economic  growth could be  restricted  by the
natural  limitations  of  environmental  resources  and the  State's  ability to
finance adequate public facilities such as roads and schools.

Despite  increases in other  sectors of its  economy,  Florida  remains  heavily
dependent on tourism. Three years ago Florida tourism was negatively impacted by
the effects of publicity regarding crime against tourists in the state,  product
maturity,  higher  prices and more  aggressive  marketing by competing  vacation
destinations.  In 1994,  slightly more than 41 million persons visited  Florida.
Since then tourism has been improving.  In 1996-97,  approximately  44.3 million
visitors were recorded.  In 1997, the number of out-of-state visitors grew 9.2%,
surpassing  the 47 million  visitor mark.  While this was an all-time high count
for  visitors,  growth in 1998-99 is expected to slow to 4.8%,  representing  an
increase of 2.25 million visitors over 1997's levels. Despite such optimism, the
tourism  industry  can be very  volatile  predicated  on  numerous  uncontrolled
factors such as good public  relations,  weather,  access to  reasonably  priced
transportation and disposable income.

Housing  starts in the State of Florida from 1991 through 1996 averaged  111,980
units  annually.  In 1996,  housing starts  increased to a level of 118,500.  In
1997, builders began 130,800 units. Total starts are expected to decline in 1998
to a level of 129,500  units,  as both multi and single  family  starts fall. In
1999, the forecast calls for a 2.9% decline in housing starts. However, in 2000,
both multi and single family starts are expected to slightly  increase 1.1% to a
level of 127,100 units. Housing starts are, however, reliant upon interest rates
and disposable income,  which can significantly impact demand in the event of an
economic  downturn.  There has been a decline in Florida's  dependence on highly
cyclical  construction  and  construction-related   manufacturing  sectors.  For
example,  in  1985,  construction  employment,  as a  share  of  total  non-farm
employment,  was 7.5%.  From 1990 through 1995,  the share edged  downward to an
average  of 5.1%  While  the  share for 1998 and 1999 is  expected  to  slightly
increase  to 5.5%,  the trend is  expected  to resume a downward  slope and drop
below  the 5% level by 2002,  thereafter,  as  Florida's  economy  continues  to
diversify.
    

The ability of the State and its local units of  government  to satisfy its debt
obligations  may be affected by numerous  factors  which  impact on the economic
vitality of the State in general and the particular region of the State in which
the issuer of the debt  obligations  in located.  South Florida is  particularly
susceptible  to  international  trade and  currency  imbalances  and to economic
dislocations in Central and South America, due to its geographical  location and
its involvement with foreign trade,  tourism and investment  capital.  North and
central   Florida  are  impacted  by  problems  in  the   agricultural   sector,
particularly with regard to the citrus and sugar industries.  Short-term adverse
economic  conditions may be created in these areas, and in the State as a whole,
due to crop  failures,  severe weather  conditions or other  agriculture-related
problems.  The State economy also has historically been dependent on the tourism
and  construction  industries  and is,  therefore,  sensitive to trends in those
sectors.

The Fund's  investment values are expected to vary in accordance with the Fund's
investment  ratings,  the issuer's  ability to satisfy interest and/or principal
payment obligations, the relative interest rates payable on similar investments,
and the legal  environment  relating to  creditors'  rights.  In addition to the
foregoing risk factors,  the Fund's policy of  concentrating  its investments in
Florida  municipal  securities may make it more  susceptible to risks of adverse
economic,  political or  regulatory  developments  than would be the case if the
Fund were more diversified as to geographic region and/or source of revenue.


                                       35
<PAGE>



                                   Appendix C

                 HISTORY OF J. & W. SELIGMAN & CO. INCORPORATED

     Seligman's  beginnings date back to 1837, when Joseph Seligman,  the oldest
of eight  brothers,  arrived in the United  States from  Germany.  He earned his
living as a pack peddler in  Pennsylvania,  and began  sending for his brothers.
The Seligmans became successful merchants,  establishing businesses in the South
and East.

     Backed by nearly thirty years of business success - culminating in the sale
of government  securities to help finance the Civil War - Joseph Seligman,  with
his brothers,  established the international banking and investment firm of J. &
W.  Seligman & Co. In the years that  followed,  the Seligman  Complex  played a
major role in the  geographical  expansion  and  industrial  development  of the
United States.

The Seligman Complex:

 ...Prior to 1900

o    Helps finance America's fledgling railroads through underwritings.
o    Is admitted to the New York Stock  Exchange  in 1869.  Seligman  remained a
     member of the NYSE until 1993,  when the  evolution of its business made it
     unnecessary.
o    Becomes a prominent underwriter of corporate securities, including New York
     Mutual Gas Light Company, later part of Consolidated Edison.
o    Provides financial  assistance to Mary Todd Lincoln and urges the Senate to
     award her a pension.  o Is  appointed  U.S.  Navy fiscal agent by President
     Grant.
o    Becomes a leader in raising  capital  for  America's  industrial  and urban
     development.

 ...1900-1910

o    Helps Congress finance the building of the Panama Canal.

 ...1910s

o    Participates  in  raising  billions  for Great  Britain,  France and Italy,
     helping to finance World War I.

 ...1920s

o    Participates  in hundreds of successful  underwritings  including those for
     some  of the  Country's  largest  companies:  Briggs  Manufacturing,  Dodge
     Brothers, General Motors,  Minneapolis-Honeywell Regulatory Company, Maytag
     Company United Artists Theater Circuit and Victor Talking Machine Company.
o    Forms  Tri-Continental  Corporation  in 1929,  today the nation's  largest,
     diversified  closed-end equity investment company,  with over $2 billion in
     assets and one of its oldest.

 ...1930s

o    Assumes  management of Broad Street  Investing  Co. Inc.,  its first mutual
     fund, today known as Seligman Common Stock Fund, Inc.
o    Establishes Investment Advisory Service.

                                       36
<PAGE>


 ...1940s

o    Helps shape the Investment Company Act of 1940.
o    Leads in the  purchase  and  subsequent  sale to the public of Newport News
     Shipbuilding  and  Dry  Dock  Company,  a  prototype  transaction  for  the
     investment banking industry.
o    Assumes management of National Investors Corporation, today Seligman Growth
     Fund, Inc.
o    Establishes Whitehall Fund, Inc., today Seligman Income Fund, Inc.

 ...1950-1989

o    Develops new open-end  investment  companies.  Today,  manages more than 40
     mutual fund portfolios.
o    Helps  pioneer  state-specific,  municipal  bond  funds,  today  managing a
     national and 18 state-specific municipal funds.
o    Establishes J. & W. Seligman Trust Company and J. & W. Seligman  Valuations
     Corporation.
o    Establishes  Seligman  Portfolios,  Inc.,  an  investment  vehicle  offered
     through variable annuity products.

 ...1990s

o    Introduces  Seligman  Select  Municipal  Fund,  Inc. and  Seligman  Quality
     Municipal  Fund,  Inc.,  two  closed-end  funds that invest in high quality
     municipal bonds.
o    In 1991 establishes a joint venture with Henderson plc, of London, known as
     Seligman Henderson Co., to offer global investment products.
o    Introduces  to  the  public   Seligman   Frontier   Fund,   Inc.,  a  small
     capitalization mutual fund.
o    Launches  Seligman  Henderson Global Fund Series,  Inc., which today offers
     five separate  series:  Seligman  Henderson  International  Fund,  Seligman
     Henderson  Global  Smaller  Companies  Fund,   Seligman   Henderson  Global
     Technology Fund,  Seligman  Henderson Global Growth  Opportunities Fund and
     Seligman Henderson Emerging Markets Growth Fund.
o    Launches  Seligman Value Fund Series,  which currently  offers two separate
     series: Seligman Large-Cap Value Fund and Seligman Small-Cap Value Fund.



                                       37
<PAGE>
                         SELIGMAN MUNICIPAL SERIES TRUST

                    Seligman North Carolina Municipal Series

                       Statement of Additional Information
                                February 1, 1999

                                 100 Park Avenue
                            New York, New York 10017
                                 (212) 850-1864

                       Toll Free Telephone: (800) 221-2450


This Statement of Additional  Information (SAI) expands upon and supplements the
information contained in the current Prospectus of the Seligman Municipal Funds,
dated  February  1, 1999.  This SAI,  although  not in itself a  prospectus,  is
incorporated by reference into the Prospectus in its entirety. It should be read
in conjunction with the Prospectus,  which may be obtained by writing or calling
the Funds at the above address or telephone numbers.

The financial statements and notes included in the Fund's Annual Report, and the
Independent Auditors' Report thereon, are incorporated herein by reference.  The
Annual  Report will be furnished to you without  charge if you request a copy of
this SAI.


                                Table of Contents

   
      Fund History ........................................................    2
      Description of the Fund and Its Investments and Risks ...............    2
      Management of the Fund ..............................................    8
      Control Persons and Principal Holders of Securities .................   13
      Investment Advisory and Other Services ..............................   13
      Brokerage Allocation and Other Practices ............................   17
      Shares of Beneficial Interest and Other Securities ..................   18
      Purchase, Redemption, and Pricing of Shares .........................   18
      Taxation of the Fund ................................................   22
      Underwriters ........................................................   24
      Calculation of Performance Data .....................................   26
      Financial Statements ................................................   28
      General Information .................................................   28
      Appendix A ..........................................................   31
      Appendix B ..........................................................   34
      Appendix C ..........................................................   35
    



TEB1C


<PAGE>


                                  Fund History

Seligman  Municipal  Series Trust was  organized as an  unincorporated  business
trust under the laws of the  Commonwealth of  Massachusetts  by a Declaration of
Trust dated July 27, 1984.

              Description of the Fund and Its Investments and Risks

Classification

Seligman  Municipal  Series  Trust  is a  non-diversified,  open-end  management
investment  company, or mutual fund. It consists of four separate series, one of
which is discussed in this SAI:

Seligman California Municipal High-Yield Series
Seligman California Municipal Quality Series
Seligman Florida Municipal Series
Seligman North Carolina Municipal Series (North Carolina Fund)

Investment Strategies and Risks

The Fund seeks to provide high income exempt from regular  federal  income taxes
and the personal income taxes of North Carolina  consistent with preservation of
capital. The Fund also invests with consideration given to capital gain.

The Fund is expected to invest principally,  without percentage limitations,  in
municipal  securities  which on the date of purchase  are rated  within the four
highest rating  categories of Moody's  Investors Service (Moody's) or Standard &
Poor's  Corporation  (S&P).  Municipal  Securities rated in these categories are
commonly  referred  to as  investment  grade.  The Fund may invest in  municipal
securities  that are not  rated,  or which do not fall into the  credit  ratings
noted above if, based upon credit analysis,  it is believed that such securities
are of comparable quality.  In determining  suitability of investment in a lower
rated or unrated security,  the Fund will take into consideration asset and debt
service coverage, the purpose of the financing, history of the issuer, existence
of other  rated  securities  of the  issuer and other  considerations  as may be
relevant, including comparability to other issuers.

Although securities rated in the fourth rating category are commonly referred to
as  investment  grade,  investment  in such  securities  could involve risks not
usually  associated with bonds rated in the first three categories.  Bonds rated
BBB by S&P are more  likely  as a  result  of  adverse  economic  conditions  or
changing  circumstance to exhibit a weakened capacity to pay interest and re-pay
principal than bonds in higher rating  categories and bonds rated Baa by Moody's
lack  outstanding  investment  characteristics  and  in  fact  have  speculative
characteristics according to Moody's.  Municipal securities in the fourth rating
category of S&P or Moody's will generally  provide a higher yield than do higher
rated municipal securities of similar maturities; however, they are subject to a
greater degree of  fluctuation  in value as a result of changing  interest rates
and economic conditions.  The market value of the municipal securities will also
be affected by the degree of interest of dealers to bid for them, and in certain
markets dealers may be more unwilling to trade municipal securities rated in the
fourth rating categories than in the higher rating categories.

A description of the credit rating categories is contained in Appendix A to this
Statement.

From  time to time,  proposals  have been  introduced  before  Congress  for the
purpose of  restricting  or  eliminating  the federal  income tax  exemption for
interest on municipal  securities and for providing state and local  governments
with federal credit assistance. Reevaluation of the Fund's investment objectives
and structure might be necessary in the future due to market conditions that may
result from future changes in the tax laws.


                                       2
<PAGE>


North Carolina Municipal Securities. North Carolina Municipal Securities include
notes,  bonds and commercial  paper issued by or on behalf of the State of North
Carolina,  its political  subdivisions,  agencies,  and  instrumentalities,  the
interest on which is exempt from regular federal income taxes and North Carolina
state  personal  income  taxes.  Such  securities  are  traded  primarily  in an
over-the-counter market. The Fund may invest, without percentage limitations, in
certain private activity bonds, the interest on which is treated as a preference
item for purposes of the alternative minimum tax.

Under the Investment  Company Act of 1940 (1940 Act), the  identification of the
issuer of municipal  bonds or notes  depends on the terms and  conditions of the
obligation. If the assets and revenues of an agency, authority,  instrumentality
or other  political  subdivision  are  separate  from  those  of the  government
creating the  subdivision  and the  obligation  is backed only by the assets and
revenues of the  subdivision,  such  subdivision is regarded as the sole issuer.
Similarly,  in the case of an industrial  development  revenue bond or pollution
control  revenue bond,  if only the assets and revenues of the  non-governmental
user back the bond, the non-governmental user is regarded as the sole issuer. If
in  either  case  the  creating  government  or  another  entity  guarantees  an
obligation,  the security is treated as an issue of such guarantor to the extent
of the value of the guarantee.

   
The Fund invests principally in long-term  municipal bonds.  Municipal bonds are
issued to obtain funds for various public  purposes,  including the construction
of a wide  range of  public  facilities  such as  airports,  bridges,  highways,
housing,  hospitals,  mass  transportation,  schools,  streets,  water and sewer
works,  and gas and electric  utilities.  Municipal  bonds also may be issued in
connection  with the refunding of outstanding  obligations,  obtaining  funds to
lend  to  other  public  institutions,   and  for  general  operating  expenses.
Industrial development bonds are issued by or on behalf of public authorities to
obtain funds to provide various  privately-operated  facilities for business and
manufacturing,  housing,  sports,  pollution  control,  and  for  airport,  mass
transit, port and parking facilities.
    

The two principal  classifications  of municipal bonds are "general  obligation"
and "revenue."  General  obligation  bonds are secured by the issuer's pledge of
its full  faith,  credit  and taxing  power for the  payment  of  principal  and
interest.  Revenue  bonds are  payable  only from the  revenues  derived  from a
particular  facility or class of facilities or, in some cases, from the proceeds
of a special excise tax or other specific  revenue source.  Although  industrial
development bonds (IDBs) are issued by municipal authorities, they are generally
secured by the  revenues  derived  from  payments of the  industrial  user.  The
payment of principal and interest on IDBs is dependent  solely on the ability of
the  user  of the  facilities  financed  by the  bonds  to  meet  its  financial
obligations and the pledge, if any, of real and personal property so financed as
security for such payment.

   
The Fund, with respect to 75% of its assets, will not purchase any revenue bonds
if as a result of such  purchase  more  than 5% of the  Fund's  assets  would be
invested in the revenue bonds of a single issuer.
    

The Fund may also invest in municipal notes.  Municipal notes generally are used
to provide for short-term  capital needs and generally  have  maturities of five
years or less. Municipal Notes include:

     1. Tax Anticipation Notes and Revenue  Anticipation Notes. Tax anticipation
notes and revenue  anticipation  notes are issued to finance  short-term working
capital needs of political subdivisions.  Generally,  tax anticipation notes are
issued in anticipation of various tax revenues,  such as income,  sales and real
property  taxes,  and are payable  from these  specific  future  taxes.  Revenue
anticipation  notes are  issued in  expectation  of  receipt  of other  kinds of
revenue, such as grant or project revenues. Usually political subdivisions issue
notes combining the qualities of both tax and revenue anticipation notes.

     2. Bond Anticipation  Notes. Bond anticipation  notes are issued to provide
interim financing until long-term financing can be arranged.  In most cases, the
long-term bonds then provide the money for the repayment of the notes.


                                       3
<PAGE>



Issues of municipal Commercial Paper typically represent short-term,  unsecured,
negotiable promissory notes. In most cases, municipal commercial paper is backed
by letters of credit,  lending agreements,  note repurchase  agreements or other
credit facility agreements offered by banks or other institutions.

   
Variable  and  Floating  Rate  Securities.  The Fund may  purchase  floating  or
variable rate securities, including participation interests therein. Investments
in floating or variable  rate provide that the rate of interest is either pegged
to money market rates or set as a specific percentage of a designated base rate,
such as rates on Treasury  Bonds or Treasury  Bills or the prime rate of a major
commercial  bank. A floating rate or variable rate security  generally  provides
that the Fund can demand  payment of the  obligation  on short notice  (daily or
weekly,  depending  on the terms of the  obligation)  at an amount  equal to par
(face  value)  plus  accrued  interest.  In  Unusual  circumstances,  the amount
received may be more or less than the amount the Fund paid for the securities.

Variable  rate  securities  provide for a specified  periodic  adjustment in the
interest  rate,  while  floating  rate  securities  have an interest  rate which
changes  whenever  there is a  change  in the  designated  base  interest  rate.
Frequently  such  securities  are  secured by letters of credit or other  credit
support  arrangements  provided by banks. The quality of the underlying creditor
or of the  bank or  issuer,  as the  case  may be,  must  be  equivalent  to the
standards set forth with respect to taxable investments below.

The maturity of variable or floating rate obligations  (including  participation
interests  therein) is deemed to be the longer of (1) the notice period required
before the Fund is entitled to receive payment of the obligation upon demand, or
(2) the period remaining until the  obligation's  next interest rate adjustment.
If the Fund does not redeem the  obligation  through  the  demand  feature,  the
obligation  will mature on a specific  date,  which may range up to thirty years
from the date of its issuance.

Participation  Interests.  From time to time,  the Fund may purchase from banks,
participation  interests  in all or  part  of  specific  holdings  of  municipal
securities. A participation interest gives the Fund an undivided interest in the
municipal  security in the  proportion  that the Fund's  participation  interest
bears to the total principal  amount of the municipal  security and provides the
demand repurchase feature described above.  Participations are frequently backed
by an  irrevocable  letter of credit  or  guarantee  of a bank that the Fund has
determined  meets its prescribed  quality  standards.  The Fund has the right to
sell the instrument back to the bank and draw on the letter of credit on demand,
on short notice, for all or any part of the Fund's participation interest in the
municipal  security,  plus  accrued  interest.  The Fund intends to exercise the
demand under the letter of credit only (1) upon a default under the terms of the
documents of the municipal security, (2) as needed to provide liquidity in order
to meet  redemptions,  or (3) to maintain a high quality  investment  portfolio.
Banks  will  retain a service  and  letter of credit  fee and a fee for  issuing
repurchase  commitments in an amount equal to the excess of the interest paid on
the municipal  securities over the negotiated yield at which the instruments are
purchased by the Fund. Participation interests will be purchased only if, in the
opinion of counsel,  interest  income on such interests will be tax-exempt  when
distributed  as dividends to  shareholders  of the Fund. The Fund currently does
not purchase participation interests and has no current intention of doing so.

When-Issued  Securities.  The  Fund  may  purchase  municipal  securities  on  a
"when-issued"  basis,  which means that  delivery of and payment for  securities
normally take place in less than 45 days after the date of the buyer's  purchase
commitment.  The  payment  obligation  and  the  interest  rate  on  when-issued
securities are each fixed at the time the purchase  commitment is made, although
no interest  accrues to a purchaser  prior to the  settlement of the purchase of
the  securities.  As a result,  the yields obtained and the market value of such
securities  may be  higher  or lower on the date  the  securities  are  actually
delivered to the buyer.  The Fund will generally  purchase a municipal  security
sold on a  when-issued  basis  with the  intention  of  actually  acquiring  the
securities on the settlement date.

A separate account consisting of cash or high-grade liquid debt securities equal
to the amount of outstanding purchase commitments is established with the Fund's
custodian in connection with any purchase of when-issued securities. The account
is  marked to market  daily,  with  additional  cash or liquid  high-grade  debt
securities  added when  necessary.  The Fund meets its respective  obligation to
purchase  
    


                                       4
<PAGE>


   
when-issued securities from outstanding cash balances,  sale of other securities
or,  although  it  would  not  normally  expect  to do so,  form the sale of the
when-issued  securities  themselves  (which may have a market  value  greater or
lesser than the Fund's payment obligations).

Municipal  securities  purchased on a when-issued basis and the other securities
held in the Fund are subject to changes in market  value based upon the public's
perception  of  the  creditworthiness  of  the  issuer  and  changes,   real  or
anticipated,  in the level of interest  rates  (which will  generally  result in
similar changes in value,  i.e., both  experiencing  appreciation  when interest
rates decline and  depreciation  when interest  rates rise).  Therefore,  to the
extent the Fund remains  substantially  fully  invested at the same time that it
has  purchased  securities  on a  when-issued  basis,  there  will be a  greater
possibility  that the market value of the Fund's assets will vary.  Purchasing a
municipal  security  on a  when-issued  basis can involve a risk that the yields
available in the market when the  delivery  takes place may be higher than those
obtained on the security purchased on a when-issued basis.

Standby  Commitments.  The Fund is  authorized  to acquire  standby  commitments
issued by banks with respect to securities  they hold,  although the Fund has no
present  intention  of  investing  any  assets  in  standby  commitments.  These
commitments  would obligate the seller of the standby  commitment to repurchase,
at the Fund's option, specified securities at a specified price.

The  price  which the Fund  would  pay for  municipal  securities  with  standby
commitments  generally  would be higher than the price which  otherwise would be
paid  for the  municipal  securities  alone,  and the  Fund  would  use  standby
commitments  solely to facilitate  portfolio  liquidity.  The standby commitment
generally  is for a shorter  term than the maturity of the security and does not
restrict in any way the Fund's right to dispose of or retain the security. There
is a risk that the seller of a standby  commitment may not be able to repurchase
the security  upon the exercise of the right to resell by the Fund.  To minimize
such risks,  the Fund is presently  authorized  to acquire  standby  commitments
solely from banks deemed creditworthy. The Board of Trustees may, in the future,
consider  whether the Fund should be  permitted to acquire  standby  commitments
from dealers. Prior to investing in standby commitments of dealers, the Fund, if
it  deems  necessary  based  upon  the  advice  of  counsel,  will  apply to the
Securities  and  Exchange  Commission  for an exemptive  order  relating to such
commitments  and the  valuation  thereof.  There  can be no  assurance  that the
Securities and Exchange Commission will issue such an order.

Standby  commitments  with  respect  to  portfolio  securities  of the Fund with
maturities of less than 60 days which are separate from the underlying portfolio
securities are not assigned a value. The cost of any such standby commitments is
carried as an unrealized loss from the time of purchase until it is exercised or
expires.  Standby  commitments with respect to portfolio  securities of the Fund
with  maturities  of 60 days or more  which  are  separate  from the  underlying
portfolio  securities are valued at fair value as determined in accordance  with
procedures established by the Board of Trustees. The Board of Trustees would, in
connection  with  the  determination  of  value  of such a  standby  commitment,
consider, among other factors, the creditworthiness of the writer of the standby
commitment,  the duration of the standby  commitment,  the dates on which or the
periods during which the standby  commitment may be exercised and the applicable
rules and regulations of the Securities and Exchange Commission.

Illiquid Securities. The Fund may invest up to 15% of its net assets in illiquid
securities,  including  restricted  securities  (i.e.,  securities  not  readily
marketable  without  registration  under the  Securities  Act of 1933 (the "1933
Act"))  and  other  securities  that are not  readily  marketable.  The Fund may
purchase  restricted  securities  that can be  offered  and  sold to  "qualified
institutional  buyers"  under Rule 144A of the 1933 Act, and the Fund's Board of
Trustees,  may determine,  when appropriate,  that specific Rule 144A securities
are liquid and not subject to the 15% limitation on illiquid securities.  Should
the Board of Trustees make this  determination,  it will  carefully  monitor the
security  (focusing  on such  factors,  among  others,  as trading  activity and
availability of information) to determine that the Rule 144A security  continues
to be liquid.  It is not  possible  to predict  with  assurance  exactly how the
market for Rule 144A securities will further  evolve.  This investment  practice
could have the effect of increasing the level of illiquidity in the Fund, if and
to the extent that qualified institutional buyers become for a time uninterested
in purchasing Rule 144A securities.
    



                                       5
<PAGE>



   
Borrowing.  The Fund may borrow money only from banks and only for  temporary or
emergency  purposes  (but not for the  purchase of portfolio  securities)  in an
amount  not in excess  of 10% of the  value of its total  assets at the time the
borrowing is made (not including the amount borrowed).  Permitted borrowings may
be  secured  or  unsecured.  The Fund  will not  purchase  additional  portfolio
securities if the Fund has  outstanding  borrowings in excess of 5% of the value
of its total assets.

Taxable  Investments.  Under normal market conditions,  the Fund will attempt to
invest  100% and as a matter of  fundamental  policy will invest at least 80% of
the value of its net assets in  securities  the interest on which is exempt from
regular  federal income tax and California  personal  income tax. Such interest,
however, may be subject to the federal alternative minimum tax.

Under normal market conditions, temporary investments in taxable securities will
be limited as a matter of  fundamental  policy to 20% of the value of the Fund's
net assets.

Except as otherwise  specifically noted above, the Fund's investment  strategies
are not fundamental and a Fund, with the approval of the Board of Trustees , may
change such strategies without the vote of shareholders.
    

Fund Policies

The Fund is subject to fundamental  policies that place  restrictions on certain
types of  investments.  These  policies  cannot be  changed  except by vote of a
majority of the outstanding  voting  securities of a Fund. Under these policies,
the Fund may not:

- -    Borrow  money,  except from banks for temporary  purposes  (such as meeting
     redemption  requests or for extraordinary or emergency purposes but not for
     the purchase of portfolio securities) in an amount not to exceed 10% of the
     value of its total assets at the time the borrowing is made (not  including
     the  amount  borrowed).  The Fund will not  purchase  additional  portfolio
     securities  if the Fund has  outstanding  borrowings in excess of 5% of the
     value of its total assets;

- -    Mortgage or pledge any of its assets, except to secure permitted borrowings
     noted above;

- -    Invest more than 25% of total assets at market  value in any one  industry;
     except that municipal  securities and securities of the US Government,  its
     agencies and  instrumentalities are not considered an industry for purposes
     of this limitation.

- -    As to 50% of the  value of its total  assets,  purchase  securities  of any
     issuer if  immediately  thereafter  more than 5% of total  assets at market
     value would be invested in the  securities of any issuer  (except that this
     limitation  does not  apply  to  obligations  issued  or  guaranteed  as to
     principal   and  interest  by  the  US   Government   or  its  agencies  or
     instrumentalities);

   
- -    Invest  in  securities  issued  by other  investment  companies,  except in
     connection with a merger,  consolidation,  acquisition or reorganization or
     for the  purpose  of  hedging  the Fund's  obligations  under the  Deferred
     Compensation Plan for Directors;
    

- -    Purchase  or hold any real  estate,  except  that  the Fund may  invest  in
     securities secured by real estate or interests therein or issued by persons
     (other than real  estate  investment  trusts)  which deal in real estate or
     interests therein;

- -    Purchase  or  hold  the  securities  of any  issuer,  if to its  knowledge,
     trustees or officers of the Fund individually owning beneficially more than
     0.5% of the  securities of that issuer own in the aggregate more than 5% of
     such securities;

- -    Write  or  purchase  put,  call,  straddle  or  spread  options;   purchase
     securities on margin or sell "short"; or underwrite the securities of other
     issuers,  except that the Fund may be deemed an  underwriter  in connection
     with the purchase and sale of portfolio securities;



                                       6
<PAGE>



- -    Purchase or sell  commodities  or  commodity  contracts  including  futures
     contracts; or

- -    Make loans, except to the extent that the purchase of notes, bonds or other
     evidences of indebtedness or deposits with banks may be considered loans.

The Fund  also may not  change  its  investment  objective  without  shareholder
approval.

Under the 1940 Act, a "vote of a majority of the outstanding  voting securities"
of a Fund means the  affirmative  vote of the lesser of (1) more than 50% of the
outstanding  shares  of the  Fund or (2) 67% or more of the  shares  of the Fund
present at a shareholders' meeting if more than 50% of the outstanding shares of
the Fund are represented at the meeting in person or by proxy.

   
Temporary Defensive Position

In  abnormal  market  conditions,  if, in the  judgment  of the Fund,  municipal
securities satisfying the Fund's investment objectives may not be purchased, the
Fund may, for defensive purposes, temporarily invest in instruments the interest
on which is exempt from regular  federal  income taxes,  but not state  personal
income taxes.  Such securities  would include those described under  "California
Municipal Securities" above that would otherwise meet the Fund's objectives.

Also, in abnormal market conditions, the Fund may invest on a temporary basis in
fixed-income securities,  the interest on which is subject to federal, state, or
local  income  taxes,  pending  the  investment  or  reinvestment  in  municipal
securities of the proceeds of sales of shares or sales of portfolio  securities,
in order to avoid the necessity of  liquidating  portfolio  investments  to meet
redemptions  of shares by  investors or where  market  conditions  due to rising
interest  rates  or  other  adverse  factors  warrant  temporary  investing  for
defensive  purposes.  Investments in taxable securities will be substantially in
securities  issued or guaranteed by the United States Government (such as bills,
notes and bonds), its agencies,  instrumentalities or authorities;  highly-rated
corporate  debt  securities  (rated Aa3 or better by Moody's or AA- or better by
S&P);  prime  commercial  paper  (rated P-1 by Moody's or A-1+/A-1 by S&P);  and
certificates  of deposit of the 100  largest  domestic  banks in terms of assets
which are  subject  to  regulatory  supervision  by the US  Government  or state
governments and the 50 largest foreign banks in terms of assets with branches or
agencies in the United States. Investments in certificates of deposit of foreign
banks and  foreign  branches of US banks may involve  certain  risks,  including
different regulation, use of different accounting procedures, political or other
economic developments, exchange controls, or possible seizure or nationalization
of foreign deposits.
    

Portfolio Turnover

Portfolio  transactions will be undertaken  principally to accomplish the Fund's
objective in relation to anticipated  movements in the general level of interest
rates but the Fund may also engage in  short-term  trading  consistent  with its
objective. Securities may be sold in anticipation of a market decline (a rise in
interest  rates) or  purchased  in  anticipation  of a market rise (a decline in
interest rates) and later sold. In addition,  a security may be sold and another
purchased  at  approximately  the  same  time to  take  advantage  of  what  the
investment  manager  believes to be a temporary  disparity  in the normal  yield
relationship between the two securities.

The Fund's  portfolio  turnover  rate is  calculated  by dividing  the lesser of
purchases  or sales of portfolio  securities  for the fiscal year by the monthly
average  of the  value  of the  portfolio  securities  owned  during  the  year.
Securities whose maturity or expiration date at the time of acquisition were one
year or less are excluded from the calculation.  The Fund's  portfolio  turnover
rates for the fiscal years ended  September  30, 1998 and 1997,  were 20.37% and
13.04 %,  respectively.  The fluctuation in portfolio turnover rates of the Fund
resulted from  conditions in the North  Carolina  municipal  market.  The Fund's
portfolio  turnover  rate will not be a limiting  factor  when the Fund deems it
desirable to sell or purchase securities.



                                       7
<PAGE>



                             Management of the Fund

Board of Trustees

   
The  Board of  Trustees  of  Seligman  Municipal  Series  Trust  provides  broad
supervision over the affairs of the Fund.
    

Management Information

Trustees  and  officers  of the  Fund,  together  with  information  as to their
principal business occupations during the past five years, are shown below. Each
Trustee who is an  "interested  person" of the Fund, as defined in the 1940 Act,
is indicated by an asterisk.
Unless otherwise  indicated,  their addresses are 100 Park Avenue,  New York, NY
10017.

<TABLE>
<CAPTION>
                                                                                       Principal
             Name,                     Positions(s) Held                          Occupation(s) During
           (Age) and                       with Fund                                  Past 5 Years
           Address                         ---------                                  ------------ 
           --------
<S>                              <C>                             <C>
      William C. Morris*         Trustee, Chairman of the        Chairman,  J. & W.  Seligman  & Co.  Incorporated, 
             (60)                Board, Chief Executive          Chairman and Chief Executive Officer, the Seligman 
                                 Officer and Chairman of the     Group of investment companies;  Chairman, Seligman 
                                 Executive Committee             Advisors, Inc, Seligman Services,  Inc., and Carbo 
                                                                 Ceramics Inc.,  ceramic  proppants for oil and gas 
                                                                 industry;    Director,    Seligman   Data   Corp., 
                                                                 Kerr-McGee    Corporation,    diversified   energy 
                                                                 company;  and Sarah Lawrence College; and a Member 
                                                                 of  the  Board  of  Governors  of  the  Investment 
                                                                 Company  Institute.   Formerly,  Director,  Daniel 
                                                                 Industries  Inc.,  manufacturer  of  oil  and  gas 
                                                                 metering equipment.                                
                                                                 
   
        Brian T. Zino*           Trustee, President and Member   Director  and  President,  J. & W.  Seligman & Co.   
             (46)                of the Executive Committee      Incorporated;  President  (with the  exception  of   
                                                                 Seligman Quality Municipal Fund, Inc. and Seligman   
                                                                 Select  Municipal  Fund,  Inc.)  and  Director  or   
                                                                 Trustee,   the   Seligman   Group  of   investment   
                                                                 companies;    Chairman,   Seligman   Data   Corp.;   
                                                                 Director,  ICI Mutual Insurance Company,  Seligman   
                                                                 Advisors, Inc., and Seligman Services, Inc.          
    
                                                                                                                                  

     Richard R. Schmaltz*        Trustee and Member of the       Director  and  Managing   Director,   Director  of  
             (58)                Executive Committee             Investments,  J. & W. Seligman & Co. Incorporated;  
                                                                 Director  or  Trustee,   the  Seligman   Group  of  
                                                                 investment companies; Director, Seligman Henderson  
                                                                 Co.,  and  Trustee   Emeritus  of  Colby  College.  
                                                                 Formerly,   Director,   Investment   Research   at  
                                                                 Neuberger  & Berman  from  May  1993 to  September  
                                                                 1996.                                               
</TABLE>

                                       8
<PAGE>


<TABLE>
<CAPTION>
             Name,                                                                 Principal
          (Age) and                       Positions(s) Held                   Occupation(s) During
            Address                           with Fund                           Past 5 Years
            -------                           ---------                           ------------

<S>                                         <C>                  <C>
        John R. Galvin                      Trustee              Dean,  Fletcher  School  of Law and  Diplomacy  at 
             (69)                                                Tufts   University;   Director  or  Trustee,   the 
       Tufts University                                          Seligman Group of investment companies;  Chairman, 
        Packard Avenue,                                          American  Council on  Germany;  a Governor  of the 
       Medford, MA 02155                                         Center for Creative Leadership; Director; Raytheon 
                                                                 Co., electronics; National Defense University; and 
                                                                 the  Institute  for  Defense  Analysis.  Formerly, 
                                                                 Director,  USLIFE  Corporation;  Ambassador,  U.S. 
                                                                 State   Department  for  negotiations  in  Bosnia; 
                                                                 Distinguished   Policy   Analyst   at  Ohio  State 
                                                                 University  and Olin  Distinguished  Professor  of 
                                                                 National  Security  Studies at the  United  States 
                                                                 Military Academy.  From June 1987 to June 1992, he 
                                                                 was the Supreme Allied  Commander,  Europe and the 
                                                                 Commander-in-Chief,    United   States    European 
                                                                 Command.                                           
                                                                                                                    
                                                                 

       Alice S. Ilchman                     Trustee              Retired   President,   Sarah   Lawrence   College;  
             (63)                                                Director  or  Trustee,   the  Seligman   Group  of  
      18 Highland Circle                                         investment companies;  Director, the Committee for  
     Bronxville, NY 10708                                        Economic    Development;    and   Chairman,    The  
                                                                 Rockefeller  Foundation,   charitable  foundation.  
                                                                 Formerly,    Trustee,   The   Markle   Foundation,  
                                                                 philanthropic  organization;  and Director, NYNEX,  
                                                                 telephone company; and International  Research and  
                                                                 Exchange Board, intellectual exchanges.             
                                                                 
   
       Frank A. McPherson                   Trustee              Retired  Chairman and Chief  Executive  Officer of
              (65)                                               Kerr-McGee  Corporation;  Director or Trustee, the
                                                                 Seligman Group of investment companies;  Director,
    2601 Northwest Expressway,                                   Kimberly-Clark  Corporation,   consumer  products;
            Suite 805E                                           Bank of Oklahoma Holding Company;  Baptist Medical
    Oklahoma City, OK  73112                                     Center;    Oklahoma    Chapter   of   the   Nature
                                                                 Conservancy; Oklahoma Medical Research Foundation;
                                                                 and National Boys and Girls Clubs of America;  and
                                                                 Member of the  Business  Roundtable  and  National
                                                                 Petroleum Council.  Formerly,  Chairman,  Oklahoma
                                                                 City  Public  Schools  Foundation;  and  Director,
                                                                 Federal Reserve  System's Kansas City Reserve Bank
                                                                 and the Oklahoma City Chamber of Commerce.        
</TABLE>
    


                                       9
<PAGE>




<TABLE>
<CAPTION>
             Name,                                                                     Principal
           (Age) and                    Positions(s) Held                          Occupation(s) During
            Address                        with Fund                                  Past 5 Years
            -------                        ---------                                  ------------

   
<S>                                         <C>                  <C>
         John E. Merow                      Trustee              Retired  Chairman and Senior  Partner,  Sullivan & 
             (69)                                                Cromwell,  law  firm;  Director  or  Trustee,  the 
       125 Broad Street,                                         Seligman Group of investment companies;  Director, 
      New York, NY 10004                                         Commonwealth  Industries,  Inc.,  manufacturers of 
                                                                 aluminum  sheet   products;   the  Foreign  Policy 
                                                                 Association;  Municipal  Art  Society of New York; 
                                                                 the U.S. Council for International  Business;  and 
                                                                 New York Presbyterian Hospital; Chairman, American 
                                                                 Australian Association;  and New York Presbyterian 
                                                                 Healthcare  Network,  Inc.;   Vice-Chairman,   the 
                                                                 U.S.-New  Zealand  Council;   and  Member  of  the 
                                                                 American  Law  Institute  and  Council  on Foreign 
                                                                 Relations.                                         
    
                                                                 
                              
        Betsy S. Michel                     Trustee              Attorney;  Director or Trustee, the Seligman Group 
             (56)                                                of investment companies; Trustee, the Geraldine R. 
         P.O. Box 449                                            Dodge  Foundation,   charitable  foundation;   and 
      Gladstone, NJ 07934                                        Chairman of the Board of Trustees of St.  George's 
                                                                 School  (Newport,  RI).  Formerly,  Director,  the 
                                                                 National   Association  of   Independent   Schools 
                                                                 (Washington, DC).                                  
                                                                 
                              

        James C. Pitney                     Trustee              Retired Partner, Pitney, Hardin, Kipp & Szuch, law     
             (72)                                                firm;  Director or Trustee,  the Seligman Group of     
 Park Avenue at Morris County,                                   investment companies.  Formerly,  Director, Public     
 P.O. Box 1945, Morristown, NJ                                   Service Enterprise Group, public utility.              
             07962                                                                                                      
                                                                 
   
       James Q. Riordan                     Trustee              Director  or  Trustee,   the  Seligman   Group  of 
             (71)                                                investment   companies;   Director,   The  Houston 
       675 Third Avenue,                                         Exploration Company; The Brooklyn Museum,  KeySpan 
          Suite 3004                                             Energy   Corporation;   and  Public   Broadcasting 
      New York, NY 10017                                         Service;  and Trustee,  the Committee for Economic 
                                                                 Development.  Formerly,  Co-Chairman of the Policy 
                                                                 Council of the Tax  Foundation;  Director,  Tesoro 
                                                                 Petroleum Companies, Inc. and Dow Jones & Company, 
                                                                 Inc.; Director and President, Bekaert Corporation; 
                                                                 and Co-Chairman, Mobil Corporation.                
                                                                 
                              
                                                                 

       Robert L. Shafer                     Trustee              Retired Vice President,  Pfizer Inc.;  Director or    
             (66)                                                Trustee,   the   Seligman   Group  of   investment    
     96 Evergreen Avenue,                                        companies. Formerly, Director, USLIFE Corporation.    
        Rye, NY 10580                                                                                               
    
</TABLE>

                              
                              

                                       10
<PAGE>


<TABLE>
<CAPTION>
             Name,                                                                    Principal
          (Age) and                       Positions(s) Held                      Occupation(s) During
           Address                           with Fund                                Past 5 Years
           -------                           ---------                                ------------
<S>                               <C>                           <C>
   
       James N. Whitson                      Trustee             Director  and  Consultant,   Sammons  Enterprises,     
             (63)                                                Inc.;  Director or Trustee,  the Seligman Group of     
    6606 Forestshire Drive                                       investment companies;  C-SPAN; and CommScope, Inc.     
       Dallas, TX 75230                                          manufacturer   of   coaxial   cables.    Formerly,     
                                                                 Executive Vice President, Chief Operating Officer,     
                                                                 Sammons Enterprises,  Inc.; and Director,  Red Man     
                                                                 Pipe  and   Supply   Company,   piping  and  other     
                                                                 materials.                                             
    
                                                                 
        Thomas G. Moles          Vice President and Senior       Director and Managing Director, J. & W. Seligman & 
              (56)               Portfolio Manager               Co.   Incorporated;   Vice  President  and  Senior 
                                                                 Portfolio Manager, three other open-end investment 
                                                                 companies in the  Seligman  Group;  President  and 
                                                                 Senior   Portfolio   Manager,   Seligman   Quality 
                                                                 Municipal Fund, Inc. and Seligman Select Municipal 
                                                                 Fund, Inc., closed-end  investment companies;  and 
                                                                 Director,  Seligman  Advisors,  Inc.  and Seligman 
                                                                 Services, Inc.                                     

       Lawrence P. Vogel                 Vice President          Senior Vice President, Finance, J. & W. Seligman &
             (42)                                                Co.  Incorporated,  Seligman  Advisors,  Inc., and
                                                                 Seligman Data Corp.; Vice President,  the Seligman
                                                                 Group  of   investment   companies   and  Seligman
                                                                 Services, Inc.; and Treasurer,  Seligman Henderson
                                                                 Co.                                               
                                                                 
   
        Frank J. Nasta                     Secretary             General  Counsel,  Senior Vice President,  Law and           
             (34)                                                Regulation  and  Corporate  Secretary,   J.  &  W.           
                                                                 Seligman  &  Co.  Incorporated;   Secretary,   the           
                                                                 Seligman Group of investment  companies,  Seligman           
                                                                 Advisors,  Inc.,  Seligman Henderson Co., Seligman           
                                                                 Services, Inc., and Seligman Data Corp.                      
    
                                                                                                                              
                                                                 

         Thomas G. Rose                    Treasurer             Treasurer,   the  Seligman   Group  of  investment          
              (41)                                               companies and Seligman Data Corp.                           
</TABLE>
                                                                 


The  Executive  Committee  of the Board  acts on  behalf  of the  Board  between
meetings to determine the value of securities  and assets owned by the Funds for
which no market valuation is available,  and to elect or appoint officers of the
Funds to serve until the next meeting of the Board.

   
Trustees and officers of the Fund are also directors and officers of some or all
of the other investment companies in the Seligman Group.
    


                                       11
<PAGE>


Compensation

   
<TABLE>
<CAPTION>

                                                                        Pension or             Total Compensation
                                                     Aggregate       Retirement Benefits         from Funds and
          Name and                                 Compensation      Accrued as Part of         Fund Complex Paid
      Position with Fund                            from Fund (1)       Fund Expenses           to Trustees (1)(2)
      ------------------                            -------------       -------------           ------------------
<S>                                                    <C>                  <C>                      <C>
William C. Morris, Trustee and Chairman                  N/A                 N/A                         N/A
Brian T. Zino, Trustee and President                     N/A                 N/A                         N/A
Richard R. Schmaltz, Trustee                             N/A                 N/A                         N/A
John R. Galvin, Trustee                                 $582                 N/A                     $77,000
Alice S. Ilchman, Trustee                                509                 N/A                      70,000
Frank A. McPherson, Trustee                              560                 N/A                      75,000
John E. Merow, Trustee                                   550                 N/A                      74,000
Betsy S. Michel, Trustee                                 582                 N/A                      77,000
James C. Pitney, Trustee                                 530                 N/A                      72,000
James Q. Riordan, Trustee                                530                 N/A                      72,000
Robert L. Shafer, Trustee                                530                 N/A                      72,000
James N. Whitson, Trustee                                581(d)              N/A                      77,000(d)
</TABLE>
    

(1)  For the Fund's fiscal year ended September 30, 1998.  Effective January 16,
     1998,  the per meeting fee for Trustees was  increased by $1,000,  which is
     allocated among all funds in the Fund Complex.

(2)  The Seligman Group of investment  companies consists of eighteen investment
     companies.

(d)  Deferred.

   
Seligman  Municipal  Series  Trust has a  compensation  arrangement  under which
outside  trustees may elect to defer  receiving their fees.  Seligman  Municipal
Series Trust has adopted a Deferred  Compensation Plan under which a trustee who
has  elected  deferral  of his or her fees may choose a rate of return  equal to
either (1) the interest rate on short-term  Treasury  bills,  or (2) the rate of
return  on the  shares of any of the  investment  companies  advised  by J. & W.
Seligman & Co. Incorporated, as designated by the trustee. The cost of such fees
and earnings is included in trustees'  fees and  expenses,  and the  accumulated
balance  thereof  is  included  in other  liabilities  in the  Fund's  financial
statements.  The total  amount of  deferred  compensation  (including  earnings)
payable in  respect of the Fund to Mr.  Whitson  as of  September  30,  1998 was
$2,027. Messrs. Merow and Pitney no longer defer current compensation;  however,
they have  accrued  deferred  compensation  in the amounts of $4,150 and $3,039,
respectively, as of September 30, 1998.

The Fund  may,  but is not  obligated  to,  purchase  shares of  Seligman  Group
investment  companies to hedge its  obligations in connection  with the Deferred
Compensation Plan.
    

Sales Charges

Class A shares of the Fund may be issued  without a sales  charge to present and
retired directors,  trustees,  officers, employees (and their family members) of
the Fund,  the other  investment  companies in the Seligman  Group,  and J. & W.
Seligman & Co.  Incorporated  and its affiliates.  Family members are defined to
include lineal descendents and lineal ancestors, siblings (and their spouses and
children) and any company or  organization  controlled by any of the  foregoing.
Such sales also may be made to employee  benefit  plans for such  persons and to
any investment advisory,  custodial, trust or other fiduciary account managed or
advised by J. & W. Seligman & Co. Incorporated or any affiliate. These sales may
be made for investment purposes only, and shares may be resold only to the Fund.

Class A shares may be sold at net asset value to these  persons since such sales
require  less sales  effort and lower sales  related  expenses as compared  with
sales to the general public.


                                       12
<PAGE>


               Control Persons and Principal Holders of Securities

   
Control Persons

As of January 12, 1999,  there was no person or persons who controlled the Fund,
either  through  significant  ownership  of Fund  shares or any  other  means of
control.

Principal Holders

As of January 12, 1999, MLPF&S for the Sole Benefit of Its Customers,  Attn Fund
Administration,  4800 Deer Lake Drive East,  3rd Floor,  Jacksonville,  FL 32246
owned of record 4.84% of the outstanding  Class A shares of beneficial  interest
of the Fund.

Management Ownership

As of January 12, 1999,  no Trustees or officers of the Fund owned any shares of
any class of the Fund.
    

                     Investment Advisory and Other Services

   
Investment Manager
    

J. & W. Seligman & Co.  Incorporated  (Seligman) manages the Fund. Seligman is a
successor  firm to an  investment  banking  business  founded  in 1864 which has
thereafter provided investment services to individuals,  families, institutions,
and  corporations.  On December 29, 1988, a majority of the  outstanding  voting
securities of Seligman was purchased by Mr. William C. Morris and a simultaneous
recapitalization  of Seligman  occurred.  See Appendix C for further  history of
Seligman.

All of the  officers  of the Fund listed  above are  officers  or  employees  of
Seligman.  Their affiliations with the Fund and with Seligman are provided under
their principal business occupations.

The Fund pays Seligman a management fee for its services,  calculated  daily and
payable  monthly.  The  management  fee is equal to .50% per annum of the Fund's
average daily net assets.  For the fiscal years ended September 30, 1998,  1997,
and 1996,  the Fund paid  Seligman  management  fees in the amount of  $168,365,
$176,659,  and  $187,874,respectively.  Seligman,  in its  discretion,  waived a
portion of its fee from the Fund in 1996,  which  resulted in an annual fee rate
of .49% of the Fund's average daily net assets.

   
The Fund  pays  all of its  expenses  other  than  those  assumed  by  Seligman,
including brokerage  commissions,  if any, shareholder services and distribution
fees,  fees and  expenses  of  independent  attorneys  and  auditors,  taxes and
governmental fees, including fees and expenses of qualifying the Funds and their
shares under federal and state securities  laws, cost of stock  certificates and
expenses of  repurchase  or  redemption  of shares,  expenses  of  printing  and
distributing reports,  notices and proxy materials to shareholders,  expenses of
printing and filing  reports and other  documents  with  governmental  agencies,
expenses of  shareholders'  meetings,  expenses of corporate data processing and
related services,  shareholder record keeping and shareholder  account services,
fees and disbursements of transfer agents and custodians, expenses of disbursing
dividends and  distributions,  fees and expenses of the Trustees of the Fund not
employed by or serving as a director of  Seligman or its  affiliates,  insurance
premiums and extraordinary expenses such as litigation expenses.  These expenses
are  allocated  between the Funds in a manner  determined  by the Trustees to be
fair and equitable.
    

The  Management  Agreement also provides that Seligman will not be liable to the
Fund for any error of judgment or mistake of law, or for any loss arising out of
any  investment,  or for any act or omission in performing  its duties under the
Management  Agreement,   except  for  willful  misfeasance,   bad  faith,  gross
negligence,  or  reckless  disregard  of its  obligations  and duties  under the
Management Agreement.



                                       13
<PAGE>


The Fund's  Management  Agreement was approved by the Trustees at a meeting held
on June 12, 1990, and was unanimously  approved by the shareholders at a meeting
held on April 11, 1991.  The Agreement will continue in effect until December 29
of each year if (1) such  continuance is approved in the manner  required by the
1940 Act (i.e.,  by a vote of a majority of the  Trustees or of the  outstanding
voting  securities  of the Fund and by a vote of a majority of the  Trustees who
are not parties to the  Management  Agreement or interested  persons of any such
party) and (2) Seligman  shall not have notified the Fund at least 60 days prior
to  December  29 of any  year  that it does not  desire  such  continuance.  The
Agreement may be terminated by the Fund,  without  penalty,  on 60 days' written
notice  to  Seligman  and  will  terminate  automatically  in the  event  of its
assignment.  The Fund has  agreed to change  its name  upon  termination  of its
Management  Agreement if continued use of the name would cause  confusion in the
context of Seligman's business.

Officers,  directors  and  employees  of  Seligman  are  permitted  to engage in
personal securities transactions, subject to Seligman's Code of Ethics. The Code
of Ethics  proscribes  certain  practices  with  regard to  personal  securities
transactions and personal  dealings,  provides a framework for the reporting and
monitoring of personal securities transactions by Seligman's Compliance Officer,
and sets forth a  procedure  of  identifying,  for  disciplinary  action,  those
individuals who violate the Code of Ethics. The Code of Ethics prohibits each of
the  officers,  directors and employees  (including  all portfolio  managers) of
Seligman from purchasing or selling any security that the officer,  director, or
employee knows or believes (1) was  recommended by Seligman for purchase or sale
by any client,  including the Fund, within the preceding two weeks, (2) has been
reviewed by Seligman  for  possible  purchase or sale within the  preceding  two
weeks, (3) is being purchased or sold by any client,  (4) is being considered by
a research analyst,  (5) is being acquired in a private placement,  unless prior
approval has been obtained from Seligman's  Compliance  Officer, or (6) is being
acquired during an initial or secondary public offering. The Code of Ethics also
imposes a strict standard of confidentiality  and requires portfolio managers to
disclose  any  interest  they may have in the  securities  or issuers  that they
recommend for purchase by any client.

The Code of Ethics also  prohibits  (1) each  portfolio  manager or member of an
investment  team from  purchasing or selling any security  within seven calendar
days of the  purchase or sale of the security by a client's  account  (including
investment  company accounts) for which the portfolio manager or investment team
manages;  and (2) each employee from engaging in short-term  trading (a purchase
and sale or vice-versa  within 60 days). Any profit realized  pursuant to either
of these prohibitions must be disgorged.

Officers,  directors,  and  employees  are  required,  except under very limited
circumstances,  to engage in personal securities transactions through Seligman's
order  desk.  The order  desk  maintains  a list of  securities  that may not be
purchased due to a possible conflict with clients.  All officers,  directors and
employees are also  required to disclose all  securities  beneficially  owned by
them on December 31 of each year.

Principal Underwriter

   
Seligman Advisors,  Inc., (Seligman Advisors) an affiliate of Seligman, 100 Park
Avenue,  New York, New York 10017, acts as general  distributor of the shares of
the Fund and of the other mutual funds in the Seligman Group.  Seligman Advisors
is an  "affiliated  person" (as defined in the 1940 Act) of  Seligman,  which is
itself an affiliated  person of the Fund.  Those  individuals  identified  above
under  "Management  Information"  as  trustees  or officers of both the Fund and
Seligman Advisors are affiliated persons of both entities.

Services Provided by the Investment Manager
    

Under the Management  Agreement,  dated June 21, 1990, subject to the control of
the Board of  Trustees,  Seligman  manages the  investment  of the assets of the
Fund,  including making purchases and sales of portfolio  securities  consistent
with the Fund's  investment  objectives  and  policies,  and  administers  their
business and other affairs.  Seligman  provides the Fund with such office space,
administrative  and other  



                                       14
<PAGE>


services and executive and other personnel as are necessary for Fund operations.
Seligman pays all of the  compensation of trustees of the Fund who are employees
or  consultants  of Seligman  and of the  officers  and  employees  of the Fund.
Seligman also provides  senior  management  for Seligman Data Corp.,  the Fund's
shareholder service agent.

Service Agreements

There are no other management-related service contracts under which services are
provided to the Fund.

Other Investment Advice

No person or persons, other than directors,  officers, or employees of Seligman,
regularly advise the Fund with respect to its investments.

Dealer Reallowances

Dealers and financial  advisors receive a percentage of the initial sales charge
on sales of Class A shares of the Fund, as set forth below:

<TABLE>
<CAPTION>
                                                                                   Regular Dealer
                                    Sales Charge           Sales Charge              Reallowance
                                     as a % of             as a % of Net              As a % of
Amount of Purchase                  Offering Price(1)     Amount Invested          Offering Price
- ------------------                  -----------------     ---------------          --------------
<S>                                     <C>                    <C>                      <C>  
Less than  $ 50,000                     4.75%                  4.99%                    4.25%
$50,000  -  $ 99,999                    4.00                   4.17                     3.50
$100,000  -  $249,999                   3.50                   3.63                     3.00
$250,000  -  $499,999                   2.50                   2.56                     2.25
$500,000  -  $999,999                   2.00                   2.04                     1.75
$1,000,000  and over(2)                    0                      0                        0
</TABLE>

(1)  "Offering  Price" is the amount that you actually  pay for Fund shares;  it
     includes the initial sales charge.
(2)  You will not pay a sales charge on purchases of $1 million or more, but you
     will be subject to a 1% CDSC if you sell your shares within 18 months.

   
Seligman Services,  Inc.  (Seligman  Services),  an affiliate of Seligman,  is a
limited  purpose  broker/dealer.   Seligman  Services  is  eligible  to  receive
commissions from certain sales of Fund shares.  For fiscal years ended September
30, 1998, 1997, and 1996, Seligman Services received  commissions in the amounts
of $975, $0, and $5, respectively.
    

Rule 12b-1 Plan

Seligman  Municipal  Series  Trust has  adopted an  Administration,  Shareholder
Services and Distribution  Plan (12b-1 Plan) in accordance with Section 12(b) of
the 1940 Act and Rule 12b-1 thereunder.

   
Under the 12b-1 Plan, the Fund may pay to Seligman  Advisors an  administration,
shareholder  services and distribution fee in respect of the Fund's Class A, and
Class D shares.  Payments under the 12b-1 Plan may include,  but are not limited
to: (1)  compensation  to securities  dealers and other  organizations  (Service
Organizations)  for  providing  distribution  assistance  with respect to assets
invested in the Fund; (2)  compensation to Service  Organizations  for providing
administration,  accounting and other shareholder  services with respect to Fund
shareholders;  and (3)  otherwise  promoting  the sale of  shares  of the  Fund,
including paying for the preparation of advertising and sales literature and the
printing and  distribution  of such  promotional  materials and  prospectuses to
prospective  investors  and  defraying  Seligman  Advisors'  costs  incurred  in
connection  with its  marketing  efforts  with  respect  to  shares of the Fund.
Seligman,  in its sole  discretion,  may also make similar  payments to Seligman
Advisors  from its own  resources,  which may  include the  management  fee that
Seligman receives from the Fund.  Payments made by the Fund 
    




                                       15
<PAGE>


   
under the 12b-1 Plan are intended to be used to encourage  sales of the Fund, as
well as to discourage redemptions.

Fees paid by the Fund under the 12b-1  Plan with  respect to any class of shares
may not be used to pay expenses incurred solely in respect of any other class or
any other Seligman  fund.  Expenses  attributable  to more than one class of the
Fund will be  allocated  between the classes in  accordance  with a  methodology
approved by the Fund's  Board of  Trustees.  The Fund may  participate  in joint
distribution  activities  with other  Seligman  funds,  and the expenses of such
activities will be allocated among the applicable funds based on relative sales,
in accordance with a methodology approved by the Board.

Class A 

Under the 12b-1 Plan, the Fund,  with respect to Class A shares,  pays quarterly
to  Seligman  Advisors  a  service  fee at an  annual  rate of up to .25% of the
average  daily net asset  value of the  Class A shares.  These  fees are used by
Seligman Advisors  exclusively to make payments to Service  Organizations  which
have entered into agreements with Seligman Advisors.  Such Service Organizations
receive  from  Seligman  Advisors  a  continuing  fee of up to .25% on an annual
basis,  payable  quarterly,  of the  average  daily net assets of Class A shares
attributable  to the  particular  Service  Organization  for providing  personal
service and/or maintenance of shareholder  accounts.  The fee payable to Service
Organizations from time to time shall,  within such limits, be determined by the
Trustees of the Fund. The Fund is not obligated to pay Seligman Advisors for any
such costs it incurs in excess of the fee described  above. No expense  incurred
in one fiscal year by Seligman  Advisors  with  respect to Class A shares of the
Fund may be paid from  Class A 12b-1  fees  received  from the Fund in any other
fiscal  year.  If the  Fund's  12b-1  Plan is  terminated  in respect of Class A
shares,  no amounts (other than amounts  accrued but not yet paid) would be owed
by the Fund to  Seligman  Advisors  with  respect  to Class A shares.  The total
amount  paid by the Fund to  Seligman  Advisors in respect of Class A shares for
the fiscal year ended September 30, 1998 was $75,601,  equivalent to .23% of the
Class A shares' average daily net assets.

Class D

Under the 12b-1 Plan, the Fund, with respect to Class D shares,  pays monthly to
Seligman Advisors a 12b-1 fee at an annual rate of up to 1% of the average daily
net asset value of the Class D shares.  The Fee is used by Seligman  Advisors as
follows:  During  the  first  year  following  the  sale of  Class D  shares,  a
distribution fee of .75% of the average daily net assets attributable to Class D
share is used, along with any CDSC proceeds,  to (1) reimburse Seligman Advisors
for its payment at the time of sale of Class D shares of a .75% sales commission
to Service Organizations, and (2) pay for other distribution expenses, including
paying for the preparation of advertising and sales  literature and the printing
and distribution of such  promotional  materials and prospectuses to prospective
investors and other marketing costs of Seligman  Advisors.  In addition,  during
the first year following the sale of Class D shares, a service fee of up to .25%
of the average daily net assets  attributable  to such Class D shares is used to
reimburse  Seligman Advisors for its prepayment to Service  Organizations at the
time of sale of Class D shares of a  service  fee of up to .25% of the net asset
value of the Class D share sold (for  shareholder  services  to be  provided  to
Class D shareholders  over the course of the one year immediately  following the
sale). The payment to Seligman  Advisors is limited to amounts Seligman Advisors
actually  paid to Service  Organizations  at the time of sale as  service  fees.
After the initial one-year period following a sale of Class D shares, the entire
12b-1 fee  attributable to such Class D shares is paid to Service  Organizations
for providing  continuing  shareholder  services and distribution  assistance in
respect of assets  invested  in the Fund.  The total  amount paid by the Fund in
respect of Class D shares  for the fiscal  year  ended  September  30,  1998 was
$12,658  equivalent  to 1% per annum of the average  daily net assets of Class D
shares.

The amounts expended by Seligman  Advisors in any one year with respect to Class
D shares of the Fund may  exceed  the 12b-1  fees paid by the Fund in that year.
The Fund's 12b-1 Plan permits expenses  incurred by Seligman Advisors in respect
of Class D shares in one fiscal year to be paid from Class D 12b-1 fees
    


                                       16
<PAGE>

   
received from the Fund in any other fiscal year; however, in any fiscal year the
Fund is not  obligated  to pay any 12b-1  fees in  excess of the fees  described
above.

As of September 30, 1998  Seligman  Advisors has incurred  $10,926  unreimbursed
expenses in respect of the Fund's  Class D shares.  This amount is equal to .75%
of the net assets of Class D at September 30, 1998.

If the 12b-1 Plan is  terminated  in  respect of Class D shares of the Fund,  no
amounts (other than amounts  accrued but not yet paid) would be owed by the Fund
to Seligman Advisors with respect to Class D shares.

Payments  made by the Fund  under  the  12b-1  Plan for its  fiscal  year  ended
September  30, 1998,  were spent on the  following  activities  in the following
amounts:

                                              Class A              Class D
                                              -------              -------

Compensation to underwriters                                        $1,609

Compensation to broker/dealers                $75,601              $11,049
    

The 12b-1  Plan was  approved  on June 21,  1990 by the  Trustees,  including  a
majority of the  Trustees  who are not  "interested  persons" (as defined in the
1940 Act) of the Fund and who have no direct or indirect  financial  interest in
the  operation of the 12b-1 Plan or in any  agreement  related to the 12b-1 Plan
(the "Qualified Trustees") and was approved by shareholders of the Fund on April
11, 1991.  Amendments to the Plan were approved in respect of the Class D shares
on November  18,  1993 by the  Trustees,  including a majority of the  Qualified
Trustees, and became effective with respect to the Class D shares on February 1,
1994.  The 12b-1 Plan will continue in effect until  December 31 of each year so
long as such  continuance  is approved  annually by a majority  vote of both the
Trustees and the Qualified Trustees,  cast in person at a meeting called for the
purpose  of  voting  on such  approval.  The 12b-1  Plan may not be  amended  to
increase  materially  the  amounts  payable  under the  terms of the 12b-1  Plan
without the approval of a majority of the outstanding  voting  securities of the
Fund and no  material  amendment  to the 12b-1 Plan may be made  except with the
approval  of a majority  of both the  Trustees  and the  Qualified  Trustees  in
accordance  with  the  applicable  provisions  of the  1940  Act and  the  rules
thereunder.

The 12b-1 Plan  requires  that the  Treasurer  of the Fund shall  provide to the
Trustees,  and the Trustees shall review at least quarterly, a written report of
the amounts  expended (and purposes  therefor)  made under the 12b-1 Plan.  Rule
12b-1 also requires  that the  selection and  nomination of Trustees who are not
"interested persons" of the Fund be made by such disinterested Trustees.

   
Seligman  Services acts as a broker/dealer  of record for  shareholder  accounts
that do not have a designated  financial advisor and receives  compensation from
the Fund pursuant to the 12b-1 Plan for providing  personal services and account
maintenance  to such accounts and other  distribution  services.  For the fiscal
years ended  September 30, 1998,  1997,  and 1996,  Seligman  Services  received
distribution  and service  fees of $2,401,  $1,858,  and  $1,638,  respectively,
pursuant to the 12b-1 Plan.
    

                    Brokerage Allocation and Other Practices

Brokerage Transactions

   
For the fiscal years ended  September  30, 1998,  1997,  and 1996,  no brokerage
commissions were paid by the Fund. When two or more of the investment  companies
in the Seligman Group or other investment advisory clients of Seligman desire to
buy or sell the same security at the same time, the securities purchased or sold
are  allocated by Seligman in a manner  believed to be equitable to each.  There
may be possible advantages or disadvantages of such transactions with respect to
price or the size of positions readily obtainable or saleable.
    

In  over-the-counter  markets,  the Fund deals with  responsible  primary market
makers unless a more favorable  execution or price is believed to be obtainable.
The Fund  may buy  securities  from or sell  securities  to  dealers  acting  as
principal,   except  dealers  with  which  its  directors  and/or  officers  are
affiliated.



                                       17
<PAGE>

       

Commissions

For the fiscal years ended September 30, 1998,  1997, and 1996, the Fund did not
execute  any  portfolio  transactions  with,  and  therefore  did  not  pay  any
commissions  to, any  broker  affiliated  with  either  the Fund,  Seligman,  or
Seligman Advisors.

       

Regular Broker-Dealers

   
During the Fund's fiscal year ended September 30, 1998, the Fund did not acquire
securities of its regular brokers or dealers (as defined in Rule 10b-1 under the
1940 Act) or of their parents.
    

               Shares of Beneficial Interest and Other Securities

Shares of Beneficial Interest

Seligman  Municipal  Series Trust is authorized to issue an unlimited  number of
full and fractional shares of beneficial interest,  par value $.001, in separate
series.  To date, four series have been authorized,  the Fund being one of them.
The Fund has two classes,  designated Class A and Class D shares.  Each share of
the Fund's  Class A and Class D  beneficial  interest  is equal as to  earnings,
assets,  and voting  privileges,  except that each class bears its own  separate
distribution  and,  potentially,  certain other class expenses and has exclusive
voting  rights with respect to any matter to which a separate  vote of any class
is required by the 1940 Act or  Massachusetts  law.  Seligman  Municipal  Series
Trust has adopted a  multiclass  plan  pursuant to Rule 18f-3 under the 1940 Act
permitting  the issuance and sale of multiple  classes.  In accordance  with the
Declaration  of Trust,  the Board of  Trustees  may  authorize  the  creation of
additional  classes of  beneficial  interest  with such  characteristics  as are
permitted by the multiples plan and Rule 18f-3. The 1940 Act requires that where
more than one class exists,  each class must be preferred over all other classes
in respect of assets  specifically  allocated  to such  class.  All shares  have
noncumulative voting rights for the election of trustees. Each outstanding share
is fully paid and non-assessable,  and each is freely transferable. There are no
liquidation, conversion, or preemptive rights.

Other Securities

Seligman  Municipal  Series Trust has no  authorized  securities  other than its
shares of beneficial interest.


                                       18
<PAGE>


                   Purchase, Redemption, and Pricing of Shares

Purchase of Shares

Class A

Class A shares may be  purchased  at a price  equal to the next  determined  net
asset value per share, plus an initial sales charge.

Purchases  of Class A shares by a "single  person"  (as  defined  below)  may be
eligible for the following reductions in initial sales charges:

Volume  Discounts  are provided if the total  amount  being  invested in Class A
shares of the Fund alone,  or in any  combination  of shares of the other mutual
funds in the Seligman Group which are sold with an initial sales charge, reaches
levels indicated in the sales charge schedule set forth in the Prospectus.

The Right of  Accumulation  allows an  investor  to  combine  the  amount  being
invested in Class A shares of the Fund and shares of the other  Seligman  mutual
funds sold with an initial sales charge with the total net asset value of shares
of those mutual funds  already owned that were sold with an initial sales charge
and the total net asset value of shares of Seligman Cash  Management  Fund which
were acquired  through an exchange of shares of another  Seligman mutual fund on
which there was an initial  sales  charge at the time of  purchase to  determine
reduced  sales charges in accordance  with the schedule in the  prospectus.  The
value of the  shares  owned,  including  the value of shares  of  Seligman  Cash
Management  Fund  acquired in an exchange of shares of another  Seligman  mutual
fund on which there was an initial  sales charge at the time of purchase will be
taken into account in orders placed through a dealer,  however, only if Seligman
Advisors  is  notified  by an  investor  or a dealer of the amount  owned by the
investor  at  the  time  the  purchase  is  made  and  is  furnished  sufficient
information to permit confirmation.

A Letter of Intent allows an investor to purchase Class A shares over a 13-month
period at reduced  initial sales charges in accordance  with the schedule in the
Prospectus,  based on the  total  amount  of Class A shares of the Fund that the
letter states the investor intends to purchase plus the total net asset value of
shares that were sold with an initial sales charge of the other Seligman  mutual
funds  already  owned and the total net asset value of shares of  Seligman  Cash
Management  Fund which were  acquired  through an  exchange of shares of another
Seligman  mutual fund on which there was an initial  sales charge at the time of
purchase.  Reduced  sales  charges  also may apply to  purchases  made  within a
13-month  period starting up to 90 days before the date of execution of a letter
of intent.

   
CDSC Applicable to Class A Shares.  Class A shares purchased  without an initial
sales  charge  in  accordance  with the  sales  charge  schedule  in the  Fund's
Prospectus,  or pursuant to a Volume Discount, Right of Accumulation,  or Letter
of Intent  are  subject to a CDSC of 1% on  redemptions  of such  shares  within
eighteen months of purchase. Employee benefit plans eligible for net asset value
sales (as described  below) may be subject to a CDSC of 1% for  terminations  at
the plan level only, on redemptions of shares  purchased  within eighteen months
prior to plan  termination.  The 1% CDSC  will be  waived  on  shares  that were
purchased   through  Morgan  Stanley  Dean  Witter  &  Co.  by  certain  Chilean
institutional  investors (i.e. pension plans,  insurance  companies,  and mutual
funds). Upon redemption of such shares within an eighteen-month  period,  Morgan
Stanley Dean Witter will reimburse  Seligman  Advisors a pro rata portion of the
fee it received from Seligman Advisors at the time of sale of such shares.
    

See "CDSC  Waivers"  below for other  waivers which may be applicable to Class A
shares.

Persons  Entitled To  Reductions.  Reductions  in initial sales charges apply to
purchases  of Class A shares  by a "single  person,"  including  an  individual;
members of a family  unit  comprising  husband,  wife and minor  children;  or a
trustee or other fiduciary  purchasing for a single fiduciary account.  Employee
benefit plans qualified under Section 401 of the Internal  Revenue Code of 1986,
as amended,  organizations  tax exempt  under  Section  501(c)(3) or (13) of the
Internal  Revenue Code, and  non-qualified



                                       19
<PAGE>


employee  benefit plans that satisfy  uniform  criteria are  considered  "single
persons" for this purpose. The uniform criteria are as follows:

     1.  Employees  must  authorize  the  employer,  if requested by a Fund,  to
receive in bulk and to distribute to each participant on a timely basis the Fund
prospectus, reports, and other shareholder communications.

     2.  Employees  participating  in a plan will be  expected  to make  regular
periodic  investments (at least annually).  A participant who fails to make such
investments  may be dropped  from the plan by the employer or the Fund 12 months
and 30 days after the last regular investment in his account. In such event, the
dropped participant would lose the discount on share purchases to which the plan
might then be entitled.

     3. The employer  must solicit its employees  for  participation  in such an
employee  benefit plan or authorize  and assist an  investment  dealer in making
enrollment solicitations.

Eligible  Employee  Benefit Plans.  The table of sales charges in the Prospectus
applies to sales to "eligible  employee benefit plans," except that the Fund may
sell shares at net asset value to "eligible  employee  benefit plans" which have
at least (1) $500,000  invested in the Seligman  Group of mutual funds or (2) 50
eligible employees to whom such plan is made available.  Such sales must be made
in connection with a payroll  deduction  system of plan funding or other systems
acceptable  to  Seligman  Data  Corp.,  the Fund's  shareholder  service  agent.
"Eligible  employee benefit plan" means any plan or arrangement,  whether or not
tax qualified,  which provides for the purchase of Fund shares.  Sales of shares
to such plans must be made in connection with a payroll deduction system of plan
funding or other system acceptable to Seligman Data Corp.

Such  sales are  believed  to require  limited  sales  effort and  sales-related
expenses and  therefore  are made at net asset value.  Contributions  or account
information for plan  participation  also should be transmitted to Seligman Data
Corp.  by methods  which it  accepts.  Additional  information  about  "eligible
employee  benefit  plans" is  available  from  financial  advisors  or  Seligman
Advisors.

Further  Types of  Reductions.  Class A shares  may also be  issued  without  an
initial sales charge to any registered unit investment trust which is the issuer
of periodic payment plan certificates, the net proceeds of which are invested in
Fund shares;  to separate  accounts  established  and maintained by an insurance
company which are exempt from  registration  under Section  3(c)(11) of the 1940
Act; to registered  representatives  and employees  (and their spouses and minor
children) of any dealer that has a sales  agreement with Seligman  Advisors;  to
financial  institution  trust  departments;  to registered  investment  advisers
exercising  discretionary  investment  authority with respect to the purchase of
Fund shares; to accounts of financial institutions or broker/dealers that charge
account management fees,  provided Seligman or one of its affiliates has entered
into  an  agreement  with  respect  to  such  accounts;  pursuant  to  sponsored
arrangements with organizations  which make  recommendations to, or permit group
solicitations of, its employees,  members or participants in connection with the
purchase of shares of the Fund;  to other  investment  companies in the Seligman
Group in connection with a deferred fee arrangement for outside  directors;  and
to "eligible  employee benefit plans" which have at least (1) $500,000  invested
in the Seligman  mutual funds or (2) 50 eligible  employees to whom such plan is
made available.

Class D

Class D shares may be  purchased  at a price  equal to the next  determined  net
asset  value,  without  an initial  sales  charge.  However,  Class D shares are
subject to a CDSC of 1% if the shares are redeemed  within one year of purchase,
charged as a percentage of the current net asset value or the original  purchase
price, whichever is less.


                                       20
<PAGE>



Systematic  Withdrawals.  Class D shareholders who reinvest both their dividends
and capital gain  distributions to purchase  additional  shares of the Fund, may
use the Fund's  Systematic  Withdrawal Plan to withdraw up to 10 of the value of
their  accounts  per year without the  imposition  of a CDSC.  Account  value is
determined as of the date the systematic withdrawals begin.

CDSC  Waivers.  The CDSC on Class D  shares  (and  certain  Class A  shares,  as
discussed above) will be waived or reduced in the following instances:

(1)  on  redemptions  following the death or  disability  (as defined in Section
     72(m)(7) of the  Internal  Revenue  Code) of a  shareholder  or  beneficial
     owner;

(2)  in connection with (1) distributions  from retirement plans qualified under
     Section  401(a) of the  Internal  Revenue  Code when such  redemptions  are
     necessary  to  make  distributions  to  plan  participants  (such  payments
     include,  but  are  not  limited  to,  death,  disability,  retirement,  or
     separation of service),  (2)  distributions  from a custodial account under
     Section  403(b)(7)  of the  Internal  Revenue  Code or an IRA due to death,
     disability,  minimum  distribution  requirements after attainment of age 70
     1/2 or, for accounts  established  prior to January 1, 1998,  attainment of
     age 59 1/2, and (3) a tax-free return of an excess contribution to an IRA;

   
(3)  in whole or in part, in connection  with shares sold to current and retired
     Trustees of the Fund;
    

(4)  in whole or in part, in connection  with shares sold to any state,  county,
     or city or any instrumentality,  department,  authority, or agency thereof,
     which is prohibited by applicable  investment laws from paying a sales load
     or commission in connection with the purchase of any registered  investment
     management company;

(5)  in whole or in part, in connection with systematic withdrawals;

(6)  in connection with  participation  in the Merrill Lynch Small Market 401(k)
     Program.

If, with respect to a redemption of any Class A Class D shares sold by a dealer,
the CDSC is waived  because the  redemption  qualifies for a waiver as set forth
above,  the dealer shall remit to Seligman  Advisors  promptly  upon notice,  an
amount  equal to the  payment  or a  portion  of the  payment  made by  Seligman
Advisors at the time of sale of such shares.

Fund Reorganizations

Class A shares may be issued without an initial sales charge in connection  with
the acquisition of cash and securities owned by other investment companies.  Any
CDSC will be waived in connection with the redemption of shares of a Fund if the
Fund is combined with another  Seligman  mutual fund,  or in  connection  with a
similar reorganization transaction.

Payment in Securities.  In addition to cash, the Funds may accept  securities in
payment for Fund shares sold at the applicable  public offering price (net asset
value and, if applicable, any sales charge), although the Funds do not presently
intend to accept securities in payment for Fund shares.  Generally,  a Fund will
only consider  accepting  securities (l) to increase its holdings in a portfolio
security,  or (2) if  Seligman  determines  that the  offered  securities  are a
suitable  investment  for the  Fund and in a  sufficient  amount  for  efficient
management. Although no minimum has been established, it is expected that a Fund
would not  accept  securities  with a value of less than  $100,000  per issue in
payment for shares. A Fund may reject in whole or in part offers to pay for Fund
shares with securities, may require partial payment in cash for applicable sales
charges, and may discontinue  accepting securities as payment for Fund shares at
any time without  notice.  The Funds will not accept  restricted  securities  in
payment  for  shares.  The Funds will value  accepted  securities  in the manner
provided for valuing portfolio securities.


                                       21
<PAGE>


Offering Price

When you buy or sell Fund shares, you do so at the Class's net asset value (NAV)
next calculated  after Seligman  Advisors  accepts your request.  Any applicable
sales charge will be added to the purchase price for Class A shares.

NAV per share of each class of the Fund is determined as of the close of regular
trading on the New York Stock Exchange  (normally,  4:00 p.m.  Eastern time), on
each day that the NYSE is open for business. The NYSE is currently closed on New
Year's Day, Martin Luther King, Jr. Day, Presidents' Day, Good Friday,  Memorial
Day,  Independence Day, Labor Day, Thanksgiving Day, and Christmas Day. The Fund
will  also  determine  NAV for  each  class  on each  day in  which  there  is a
sufficient degree of trading in the Fund's portfolio  securities that the NAV of
Fund shares might be materially affected.  NAV per share for a class is computed
by dividing such class's share of the value of the net assets of the Fund (i.e.,
the value of its assets less  liabilities)  by the total  number of  outstanding
shares of such class.  All expenses of the Fund,  including the management  fee,
are accrued daily and taken into account for the purpose of determining NAV. The
NAV of Class D shares will  generally be lower than the NAV of Class A shares as
a result of the higher 12b-1 fees with  respect to such shares.  It is expected,
however,  that the net asset  value per  share of the two  classes  will tend to
converge  immediately  after the  recording of  dividends,  which will differ by
approximately  the amount of the  distribution  and other class expenses accrual
differential between the classes.

The  securities  in  which  the  Fund  invests  are  traded   primarily  in  the
over-the-counter  market.  Municipal  securities and other  short-term  holdings
maturing in more than 60 days are valued on the basis of quotations  provided by
an independent pricing service, approved by the Trustees, which uses information
with respect to  transactions  in bonds,  quotations  from bond dealers,  market
transactions  in  comparable   securities  and  various   relationships  between
securities in determining  value. In the absence of such quotations,  fair value
will be  determined  in  accordance  with  procedures  approved by the Trustees.
Short-term holdings having remaining maturities of 60 days or less are generally
valued at amortized cost.

Generally, trading in certain securities such as municipal securities, corporate
bonds, US Government  securities,  and money market instruments is substantially
completed  each day at various times prior to the close of the NYSE.  The values
of such  securities  used in determining  the net asset value of a Fund's shares
are computed as of such times.

Specimen Price Make-Up

Under  the  current  distribution  arrangements  between  the Fund and  Seligman
Advisors,  Class A shares are sold with a maximum  initial sales charge of 4.75%
and Class D shares are sold at NAV(1).  Using each Class's NAV at September  30,
1998, the maximum offering price of the Fund's shares is as follows:

Class A

     Net asset value per share......................................      $8.30

     Maximum sales charge (4.75% of offering price).................        .41
                                                                           -----

     Offering price to public.......................................       $8.71
                                                                           =====

Class D

     Net asset value and offering price per share(1) ...............       $8.30
                                                                           =====
- ----------

(1)  Class D shares are subject to a CDSC of 1% on  redemptions  within one year
     of purchase.


                                       22
<PAGE>


Redemption in Kind

The  procedures  for selling Fund shares under  ordinary  circumstances  are set
forth in the Prospectus. In unusual circumstances,  payment may be postponed, or
the right of  redemption  postponed  for more than seven  days,  if the  orderly
liquidation  of  portfolio  securities  is  prevented  by  the  closing  of,  or
restricted  trading  on, the NYSE  during  periods of  emergency,  or such other
periods  as ordered by the  Securities  and  Exchange  Commission.  Under  these
circumstances, redemption proceeds may be made in securities. If payment is made
in securities,  a shareholder may incur brokerage  expenses in converting  these
securities to cash.

                              Taxation of the Fund

The Fund is treated as a separate  corporation  for federal income tax purposes.
As a result, determinations of net investment income,  exempt-interest dividends
and net long-term and short-term  capital gain and loss will be made  separately
for the Fund.

The Fund is  qualified  and  intends  to  continue  to  qualify  as a  regulated
investment  company under  Subchapter M of the Internal  Revenue Code.  For each
year so qualified,  the Fund will not be subject to federal  income taxes on its
net investment  income and capital gains,  if any,  realized  during any taxable
year,  which it distributes to its  shareholders,  provided that at least 90% of
its net investment  income and net short-term  capital gains are  distributed to
shareholders each year.

Qualification as a regulated  investment company under the Internal Revenue Code
requires among other things, that (1) at least 90% of the annual gross income of
the  Fund  be  derived  from  dividends,  interest,  payments  with  respect  to
securities  loans  and  gains  from  the sale or other  disposition  of  stocks,
securities or  currencies,  or other income  (including but not limited to gains
from  options,  futures,  or  forward  contracts)  derived  with  respect to its
business of investing in such stocks, securities or currencies; (2) and the Fund
diversify  its holdings so that, at the end of each quarter of the taxable year,
(i) at least 50% of the market  value of the  Fund's  assets is  represented  by
cash, US Government  securities and other  securities  limited in respect of any
one issuer to an amount not greater than 5% of the Fund's  assets and 10% of the
outstanding  voting securities of such issuer, and (ii) not more than 25% of the
value of its assets is invested in the  securities of any one issuer (other than
US Government securities).

Federal Income Taxes

If, at the end of each quarter of its taxable  year,  at least 50% of the Fund's
total assets is invested in obligations  exempt from regular federal income tax,
the Fund will be eligible to pay dividends that are  excludable by  shareholders
from gross income for regular  federal income tax purposes.  The total amount of
such exempt  interest  dividends  paid by the Fund  cannot  exceed the amount of
federally  tax-exempt  interest  received  by the Fund  during the year less any
expenses allocable to the Fund.

Distributions  of net capital gains (i.e.,  the excess of net long-term  capital
gains over any net  short-term  losses) are taxable as long-term  capital  gain,
whether  received in cash or invested in  additional  shares,  regardless of how
long the shares have been held by a shareholder,  except that the portion of net
capital gains  representing  accrued market  discount on tax-exempt  obligations
acquired  after April 30, 1993 will be taxable as  ordinary  income.  Individual
shareholders  will be subject to federal  tax on  distributions  of net  capital
gains at a maximum rate of 20% if designated as derived from the Fund's  capital
gains from property held for more than one year. Net Capital gain of a corporate
shareholder is taxed at the same rate as ordinary income. Distributions from the
Fund's other  investment  income (other than exempt interest  dividends) or from
net realized  short-term gain will taxable to  shareholders as ordinary  income,
whether  received  in cash  or  invested  in  additional  shares.  Distributions
generally will not be eligible for the dividends  received  deduction allowed to
corporate  shareholders.  Shareholders  receiving  distributions  in the form of
additional  shares  issued by the Fund will be treated  for  federal  income tax
purposes as having received a distribution in an amount equal to the fair market
value on the date of distribution of the shares received.



                                       23
<PAGE>


Interest on  indebtedness  incurred or  continued to purchase or carry shares of
the Fund will not be  deductible  for federal  income tax purposes to the extent
that the Fund's distributions are exempt from federal income tax.

Any gain or loss  realized  upon a sale or redemption of shares in the Fund by a
shareholder  who is not a dealer in  securities  will  generally be treated as a
long-term  capital  gain or loss if the shares  have been held for more than one
year and otherwise as a short-term capital gain or loss. Individual shareholders
will be subject to federal  income tax on net capital gains at a maximum rate of
20% in  respect of shares  held for more than one year.  Net  capital  gain of a
corporate shareholder is taxed at the same rate as ordinary income.  However, if
shares on which a long-term  capital  gain  distribution  has been  received are
subsequently  sold or redeemed  and such shares have been held for six months or
less, any loss realized will be treated as long-term  capital loss to the extent
that it offsets the long-term capital gain  distribution.  In addition,  no loss
will be  allowed  on the sale or other  disposition  of  shares  of the Fund if,
within a period  beginning  30 days before the date of such sale or  disposition
and  ending 30 days  after such date,  the  holder  acquires  (including  shares
acquired  through  dividend  reinvestment)  securities  that  are  substantially
identical to the shares of the Fund.

In  determining  gain or loss on shares  of the Fund that are sold or  exchanged
within 90 days after acquisition,  a shareholder generally will not be permitted
to  include  in the tax basis  attributable  to such  shares  the  sales  charge
incurred in acquiring such shares to the extent of any  subsequent  reduction of
the sales charge by reason of the Exchange or Reinstatement Privilege offered by
the Fund. Any sales charge not taken into account in  determining  the tax basis
of shares sold or exchanged  within 90 days after  acquisition  will be added to
the  shareholder's  tax basis in the shares acquired pursuant to the Exchange or
Reinstatement Privilege.

   
Shareholders  are urged to consult their tax advisors  concerning  the effect of
federal income taxes in their individual circumstances.  In particular,  persons
who may be  "substantial  users" (or "related  person" of substantial  users) of
facilities  financed by industrial  development  bonds or private activity bonds
should consult the tax advisors before purchasing shares of the Fund.
    

North Carolina Taxes

   
In the  opinion of Horack,  Talley,  Pharr & Lowndes,  P.A.,  tax counsel to the
North Carolina Fund,  distributions from the North Carolina Fund to shareholders
subject to North  Carolina  income taxes will not be taxable for North  Carolina
income  tax  purposes  to the  extent the  distributions  either (i)  qualify as
exempt-interest  dividends of a regulated  investment company under the Internal
Revenue Code and are attributable to interest on obligations issued by the State
of  North  Carolina  and  its  political  subdivisions  or  (ii)  are  dividends
attributable to interest on direct obligations of the US government and agencies
and  possessions  of the  United  States,  so long as in both  cases  the  North
Carolina Fund provides a supporting  statement to the  shareholders  designating
the portion of the dividends of the North Carolina Fund attributable to interest
on  obligations  issued  by the  State  of  North  Carolina  and  its  political
subdivisions  or  direct  obligations  of the US  Government  and  agencies  and
possessions of the United States. In the absence of such a statement,  the total
amount of the dividends will be taxable for North Carolina  income tax purposes.
Distributions attributable to other sources, including exempt-interest dividends
attributable  to interest on obligations of states other than North Carolina and
the political  subdivisions of such other states as well as capital gains,  will
be taxable for North Carolina income tax purposes.
    

The North  Carolina Fund will notify its  shareholders  within 60 days after the
close of its taxable year as to the amount of dividends and distributions to the
shareholders  of the North  Carolina  Fund which are exempt from North  Carolina
income taxes and the dollar  amount,  if any, which is subject to North Carolina
income taxes.

Unless a shareholder includes a certified taxpayer identification number (social
security number for  individuals) on the account  application and certifies that
the  shareholder is not subject to backup  withholding,  the Fund is required to
withhold  and remit to the US  Treasury  a portion  of  distributions  and 



                                       24
<PAGE>


other reportable payments to the shareholder.  The rate of backup withholding is
31%.  Shareholders  should be aware that, under  regulations  promulgated by the
Internal  Revenue  Service,  the Fund may be fined $50 annually for each account
for which a certified  taxpayer  identification  number is not provided.  In the
event that such a fine is  imposed,  the Fund may charge a service  fee of up to
$50 that may be deducted from the  shareholder's  account and offset against any
undistributed  dividends and capital gain distributions.  The Fund also reserves
the  right to close  any  account  which  does  not  have a  certified  taxpayer
identification number.

                                  Underwriters

Distribution of Securities

Seligman  Municipal  Series  Trust  and  Seligman  Advisors  are  parties  to  a
Distributing  Agreement dated January 1, 1993 under which Seligman Advisors acts
as the exclusive agent for distribution of shares of the Fund. Seligman Advisors
accepts orders for the purchase of Fund shares, which are offered  continuously.
As general  distributor  of the Fund's shares of beneficial  interest,  Seligman
Advisors allows  reallowances to all dealers on sales of Class A shares,  as set
forth above under "Dealer  Reallowances."  Seligman Advisors retains the balance
of sales charges and any CDSCs paid by investors.

   
Total sales charges paid by  shareholders  of Class A shares of the Fund for the
fiscal years ended  September  30, 1998,  1997,  and 1996 are shown below.  Also
shown are the  amounts  of the sales  charges  that were  retained  by  Seligman
Advisors:

<TABLE>
<CAPTION>
                                              Amount of Class A 
                      Total Sales Charges       Sales Charges   
                      Paid by Shareholders       Retained by    
      Fiscal Year     on Class A Shares       Seligman Advisors 
      -----------     -----------------       ----------------- 
<S>                          <C>                      <C>   
        1998                 $50,052                  $6,114
        1997                  51,778                   6,321
        1996                 104,210                  12,563
</TABLE>
    

Compensation

Seligman  Advisors,  which is an  affiliated  person  of  Seligman,  which is an
affiliated  person of the Fund,  received the  following  commissions  and other
compensation from the Fund during its fiscal year ended September 30, 1998:

<TABLE>
<CAPTION>
               Net Underwriting        Compensation on
                Discounts and          Redemptions and
                 Commissions             Repurchases
               (Class A Sales        (CDSC on Class A and      Brokerage             Other 
               Charge Retained)       Class D Retained)       Commissions         Compensation
               ----------------       -----------------       -----------         ------------
<S>                                         <C>                    <C>                 <C>
                   $6,114                   $79                    $0                  0
</TABLE>

Other Payments

   
Seligman  Advisors shall pay  broker/dealers,  from its own resources,  a fee on
purchases of Class A shares of  $1,000,000  or more (NAV sales),  calculated  as
follows:  1.00% of NAV sales up to but not  including  $2  million;  .80% of NAV
sales from $2 million up to but not including $3 million; .50% of NAV sales from
$3 million up to but not  including  $5  million;  and .25% of NAV sales from $5
million and above.  The calculation of the fee will be based on assets held by a
"single  person,"  including an individual,  members of a family unit comprising
husband, wife and minor children purchasing securities for their own account, or
a trustee or other fiduciary purchasing for a single fiduciary account or single
trust.  Purchases made by a trustee or other  fiduciary for a fiduciary  account
may not be  aggregated  purchases  made on  behalf  of any  other  fiduciary  or
individual account.
    



                                       25
<PAGE>


   
Seligman Advisors shall also pay broker/dealers,  from its own resources,  a fee
on assets of certain  investments in Class A shares of the Seligman mutual funds
participating  in an "eligible  employee  benefit plan" that are attributable to
the particular broker/dealer. The shares eligible for the fee are those on which
an initial sales charge was not paid because either the  participating  eligible
employee benefit plan has at least (1) $500,000  invested in the Seligman mutual
funds or (2) 50 eligible employees to whom such plan is made available.  Class A
shares  representing  only an initial  purchase of Seligman Cash Management Fund
are not eligible for the fee. Such shares will become  eligible for the fee once
they are exchanged for shares of another  Seligman  mutual fund.  The payment is
based on  cumulative  sales  for each Plan  during a single  calendar  year,  or
portion thereof.  The payment  schedule,  for each calendar year, is as follows:
1.00% of sales up to but not including $2 million; .80% of sales from $2 million
up to but not including $3 million;  .50% of sales from $3 million up to but not
including $5 million; and .25% of sales from $5 million and above.
    

Seligman  Advisors may from time to time assist  dealers by, among other things,
providing  sales  literature  to, and  holding  informational  programs  for the
benefit  of,  dealers'  registered   representatives.   Dealers  may  limit  the
participation of registered  representatives in such  informational  programs by
means of sales  incentive  programs which may require the sale of minimum dollar
amounts of shares of Seligman mutual funds.  Seligman  Advisors may from time to
time pay a bonus or other  incentive to dealers that sell shares of the Seligman
mutual funds. In some instances, these bonuses or incentives may be offered only
to certain dealers which employ registered  representatives who have sold or may
sell a  significant  amount of shares of the Fund and/or  certain  other  mutual
funds managed by Seligman during a specified period of time. Such bonus or other
incentive may take the form of payment for travel expenses,  including  lodging,
incurred in connection with trips taken by qualifying registered representatives
and members of their families to places within or outside the United States. The
cost to Seligman  Advisors of such promotional  activities and payments shall be
consistent  with the rules of the National  Association  of Securities  Dealers,
Inc., as then in effect.

                         Calculation of Performance Data

   
Class A

The  annualized  yield for the 30-day  period ended  September  30, 1998 for the
Fund's Class A shares was 3.54%.  The annualized  yield was computed by dividing
the Fund's net  investment  income per share earned during this 30-day period by
the maximum offering price per share (i.e., the net asset value plus the maximum
sales load of 4.75% of the net amount invested) on September 30, 1998, which was
the last day of this  period.  The average  number of Class A shares of the Fund
was 3,900,791,  which was the average daily number of shares  outstanding during
the 30-day period that were eligible to receive  dividends.  Income was computed
by totaling the interest earned on all debt obligations during the 30-day period
and subtracting  from that amount the total of all recurring  expenses  incurred
during the period.  The 30-day yield was then  annualized  on a  bond-equivalent
basis  assuming  semi-annual  reinvestment  and  compounding  of net  investment
income.

The tax equivalent  annualized  yield for the 30-day period ended  September 30,
1998 for the  Fund's  Class A shares was 6.35%.  The tax  equivalent  annualized
yield was computed by first computing the annualized  yield as discussed  above.
Then the portion of the yield attributable to securities the income of which was
exempt for federal and state income tax purposes was determined. This portion of
the yield was then  divided  by one minus  44.28%  (which  assumes  the  maximum
combined  federal and state income tax rate for  individual  taxpayers  that are
subject to North  Carolina's  personal income taxes).  Then the small portion of
the yield  attributable to securities the income of which was exempt for federal
income tax purposes was  determined.  This portion of the yield was then divided
by one minus 39.6% (39.6% being the assumed  maximum federal income tax rate for
individual taxpayers).  These two calculations were then added to the portion of
the Class A shares'  yield,  if any, that was  attributable  to  securities  the
income of which was not tax-exempt.
    


                                       26
<PAGE>


   
The average  annual  total return for the Fund's Class A shares for the one-year
period ended  September 30, 1998 was 3.46%.  The average annual total return for
the Fund's Class A shares for the five-year  period ended September 30, 1998 was
4.62%.  The average  annual  total  return for the Fund's Class A shares for the
period August 27, 1990 (inception)  through September 30, 1998 was 6.99%.  These
returns were computed by assuming a  hypothetical  initial  payment of $1,000 in
Class A shares of the Fund.  From this $1,000,  the maximum sales load of $47.50
(4.75% of public offering  price) was deducted.  It was then assumed that all of
the dividends and  distributions  by the Fund's Class A shares over the relevant
time period were reinvested. It was then assumed that at the end of the one-year
period,  the five-year  period,  and the ten-year period of the Fund, the entire
amount was  redeemed.  The average  annual total return was then  calculated  by
determining  the annual rate  required  for the  initial  payment to grow to the
amount which would have been received upon redemption  (i.e., the average annual
compound rate of return).

Class D

The  annualized  yield for the 30-day  period ended  September  30, 1998 for the
Fund's Class D shares was 2.97%.  The annualized yield was computed as for Class
A shares by dividing the Fund's net  investment  income per share earned  during
this 30-day period by the maximum  offering price per share (i.e., the net asset
value) on September 30, 1998 which was the last day of this period.  The average
number of Class D shares of the Fund was  172,902,  which was the average  daily
number of shares  outstanding  during the 30-day  period  that were  eligible to
receive  dividends.  Income was computed by totaling the interest  earned on all
debt  obligations  during the 30-day period and subtracting from that amount the
total of all recurring expenses incurred during the period. The 30-day yield was
then annualized on a bond-equivalent basis assuming semi-annual reinvestment and
compounding of net investment income.

The tax equivalent  annualized  yield for the 30-day period ended  September 30,
1998 for the  Fund's  Class D shares was 5.33%.  The tax  equivalent  annualized
yield was computed as discussed above for Class A shares.

The average  annual  total return for the Fund's Class D shares for the one-year
period ended  September 30, 1998 was 6.77%.  The average annual total return for
the Fund's Class D shares for the period  February 1, 1994  (inception)  through
September  30,  1998 was  4.83%.  These  returns  were  computed  by  assuming a
hypothetical  initial  payment  of $1,000 in Class D shares of the Fund and that
all of the  dividends  and  distributions  by the Fund's Class D shares over the
relevant time period were reinvested. It was then assumed that at the end of the
one-year  period and the period since  inception of the Fund,  the entire amount
was redeemed, subtracting the 1% CDSC, if applicable

The tables below  illustrate  the total  returns on a $1,000  investment  in the
Fund's Class A and Class D shares for the ten years ended  September 30, 1998 or
from the Class's inception through  September 30, 1998,  assuming  investment of
all dividends and capital gain distributions.
    

<TABLE>
<CAPTION>
                                     Class A
                                     -------


                          Value of          Value of                         Total Value
        Year              Initial         Capital Gain       Value of             Of              Total
       Ended(1)        Investment(2)     Distributions       Dividends      Investment(2)     Return(1)(3)
       --------        -------------     -------------       ---------      -------------     ------------
<S>                         <C>              <C>              <C>                <C>             <C>
      9/30/90               $ 939            $ --             $ --               $ 939
      9/30/91                 985              --               66               1,051
      9/30/92               1,015              --              133               1,148
      9/30/93               1,097               3              214               1,314
      9/30/94                 974              10              254               1,238
      9/30/95               1,031              14              340               1,385
      9/30/96               1,046              16              412               1,474
      9/30/97               1,073              23              496               1,592
   
      9/30/98               1,107              37              585               1,729           72.87%
</TABLE>
    



                                       27
<PAGE>


<TABLE>
<CAPTION>
                                     Class D
                                     -------


                          Value of          Value of                         Total Value
        Year              Initial         Capital Gain       Value of             of              Total
       Ended(1)        Investment(2)     Distributions       Dividends      Investment(2)     Return(1)(3)
       --------        -------------     -------------       ---------      -------------     ------------
<S>                       <C>                <C>                 <C>             <C>            <C> 
      9/30/94             $ 893              $ --                $26             $ 919
      9/30/95               947                 2                 72             1,021
      9/30/96               958                 4                115             1,077
      9/30/97               986                 8                162             1,156
   
      9/30/98             1,016                18                212             1,246           24.58%
</TABLE>

(1)  From  commencement  of operations of Class A shares on August 27, 1990; and
     from commencement of operations for Class D shares on February 1, 1994.

(2)  The "Value of Initial  Investment"  as of the date  indicated  reflects the
     effect of maximum  sales charge and CDSC, if  applicable,  assumes that all
     dividends and capital gain  distributions  were taken in cash, and reflects
     changes  in  the  net  asset  value  of  the  shares   purchased  with  the
     hypothetical  initial investment.  "Total Value of Investment" reflects the
     effect of the CDSC, if applicable,  and assumes investment of all dividends
     and capital gain distributions.
    

(3)  Total  return  for each  Class  of the Fund is  calculated  by  assuming  a
     hypothetical  initial  investment  of $1,000 at the beginning of the period
     specified,  subtracting  the  maximum  sales load or CDSC,  if  applicable;
     determining total value of all dividends and distributions  that would have
     been paid during the period on such shares  assuming  that each dividend or
     distribution  was  invested  in  additional  shares  at  net  asset  value;
     calculating the total value of the investment at the end of the period; and
     finally,  by dividing the difference between the amount of the hypothetical
     initial  investment at the beginning of the period and its value at the end
     of the period by the amount of the hypothetical initial investment.

Seligman  waived its fees and  reimbursed  certain  expenses  during some of the
periods above, which positively affected the performance results presented.

   
The Fund's total returns and average  annual total  returns  quoted from time to
time for periods through December 27, 1990 do not reflect the deduction of 12b-1
fees,  because the 12b-1 Plan was  implemented  on that date. If these fees were
reflected, the performance results presented would have been lower.
    

                              Financial Statements

The Annual Report to  Shareholders  of Seligman  Municipal  Series Trust for the
fiscal year ended  September 30, 1998 contains a schedule of the  investments of
the  Fund  as of  September  30,  1998,  as  well  as  certain  other  financial
information as of that date. The financial  statements and notes included in the
Annual Report,  and the Independent  Auditors' Report thereon,  are incorporated
herein by reference.  The Annual Report will be furnished,  without  charge,  to
investors who request copies of this SAI.

                               General Information

The Trustees are  authorized to classify or  reclassify  and issue any shares of
beneficial  interest  of the  Trust  into any  number of other  classes  without
further action by  shareholders.  The 1940 Act requires that where more than one
class exists,  each class must be preferred over all other classes in respect of
assets specifically allocated to such class.

As a general  matter,  the Trust will not hold  annual or other  meetings of the
shareholders.  This is because the Declaration of Trust provides for shareholder
voting only (a) for the election or removal of one or more Trustees if a meeting
is  called  for that  purpose,  (b) with  respect  to any  contract  as to which
shareholder  approval  is  required  by the 1940 Act,  (c) with  respect  to any
termination or reorganization of the Trust or any series, including the Fund, to
the extent and as provided in the Declaration of Trust,  (d) with respect to any
amendment of the  Declaration of Trust (other than amendments  establishing  and
designating  new  series,  abolishing  series  when  there are no units  thereof
outstanding, changing the name of the Trust or the name of any series, supplying
any omission,  curing any ambiguity or curing,  correcting or supplementing  any
provision  thereof which is  internally  inconsistent  with any other  



                                       28
<PAGE>


provision  thereof or which is  defective or  inconsistent  with the 1940 Act or
with the  requirements  of the Code,  or applicable  regulations  for the Fund's
obtaining  the  most  favorable  treatment  thereunder  available  to  regulated
investment  companies),  which amendments  require approval by a majority of the
Shares  entitled  to  vote,  (e) to the same  extent  as the  stockholders  of a
Massachusetts  business  corporation  as  to  whether  or  not a  court  action,
proceeding,  or claim should or should not be brought or maintained derivatively
or as a class  action on behalf of the Trust or the  shareholders,  and (f) with
respect to such additional  matters  relating to the Trust as may be required by
the  1940  Act,  the  Declaration  of  Trust,  the  By-laws  of the  Trust,  any
registration  of the Trust with the  Securities  and  Exchange  Commission  (the
"Commission")  or any  state,  or as the  Trustees  may  consider  necessary  or
desirable.  Each Trustee serves until the next meeting of shareholders,  if any,
called for the purpose of considering the election or reelection of such Trustee
or of a successor to such Trustee,  and until the election and  qualification of
his  successor,  if any,  elected at such meeting,  or until such Trustee sooner
dies,  resigns,  retires or is removed by the  shareholders or two-thirds of the
Trustees.

The shareholders of the Trust have the right, upon the declaration in writing or
vote of more than  two-thirds  of the Trust's  outstanding  shares,  to remove a
Trustee. The Trustees will call a meeting of shareholders to vote on the removal
of a Trustee  upon the written  request of the record  holders of ten percent of
its shares.  In addition,  whenever ten or more  shareholders of record who have
been such for at least six months  preceding  the date of  application,  and who
hold in the aggregate either shares having a net asset value of at least $25,000
or at least 1 per centum of the  outstanding  shares,  whichever is less,  shall
apply to the  Trustees in writing,  stating that they wish to  communicate  with
other  shareholders  with a view to  obtaining  signatures  to a  request  for a
meeting for the purpose of voting upon the question of removal of any Trustee or
Trustees and accompanied by a form of communication  and request which they wish
to transmit,  the Trustee  shall within five business days after receipt of such
application  either: (1) afford to such applicants access to a list of the names
and addresses of all  shareholders as recorded on the books of the Trust; or (2)
inform such applicants as to the  approximate  number of shareholders of record,
and the approximate cost of mailing to them the proposed  communication and form
of requests.  If the Trustees elect to follow the latter  course,  the Trustees,
upon the  written  request of such  applicants,  accompanied  by a tender of the
material to be mailed and of the  reasonable  expenses of mailing,  shall,  with
reasonable promptness, mail such material to all shareholders of record at their
addresses as recorded on the books,  unless within five business days after such
tender the Trustees shall mail to such  applicants and file with the Commission,
together with a copy of the material to be mailed, a written statement signed by
at least a majority of the Trustees to the effect that in their  opinion  either
such  material  contains  untrue  statements  of fact or omits  to  state  facts
necessary to make the statements  contained therein not misleading,  or would be
in violation of applicable law, and specifying the basis of such opinion.  After
opportunity for hearing upon the objections  specified in the written  statement
so filed,  the  Commission  may,  and if  demanded  by the  Trustees  or by such
applicants  shall,  enter  an  order  either  sustaining  one or  more  of  such
objections or refusing to sustain any of them. If the Commission  shall enter an
order refusing to sustain any of such  objections,  or if, after the entry of an
order  sustaining one or more of such  objections,  the  Commission  shall find,
after notice and opportunity for hearing,  that all objections so sustained have
been met, and shall enter an order so declaring,  the Trustees shall mail copies
of such material to all shareholders with reasonable  promptness after the entry
of such order and the renewal of such tender.

Rule 18f-2 under the 1940 Act provides that any matter  required to be submitted
by the provisions of the 1940 Act or applicable state law, or otherwise,  to the
holders of the outstanding  voting  securities of an investment  company such as
the  Trust  shall  not be deemed to have  been  effectively  acted  upon  unless
approved by the holders of a majority of the  outstanding  shares of each series
affected by such  matter.  Rule 18f-2  further  provides  that a series shall be
deemed to be affected by a matter  unless it is clear that the interests of each
series in the matter are  substantially  identical  or that the matter  does not
significantly affect any interest of such series.  However, the Rule exempts the
selection  of  independent  public   accountants,   the  approval  of  principal
distributing  contracts  and the election of trustees  from the separate  voting
requirements of the Rule.


                                       29
<PAGE>


The  shareholders  of  a  Massachusetts  business  trust  could,  under  certain
circumstances,  be held  personally  liable  as  partners  for its  obligations.
However,  the Declaration of Trust contains an express disclaimer of shareholder
liability for acts or  obligations of the Trust.  The  Declaration of Trust also
provides  for  indemnification  and  reimbursement  of expenses out of a series'
assets  for any  shareholder  held  personally  liable for  obligations  of such
series.

Custodian.  Investors  Fiduciary Trust Company,  801 Pennsylvania,  Kansas City,
Missouri 64105,  serves as custodian for the Fund. It also maintains,  under the
general  supervision of Seligman,  the accounting records and determines the net
asset value for the Fund.

   
Auditors.  Deloitte & Touche LLP,  independent  auditors,  have been selected as
auditors of the Fund. Their address is Two World Financial Center,  New York, NY
10281.
    



                                       30
<PAGE>


                                   Appendix A

Moody's Investors Service, Inc. ("Moody's")
Municipal Bonds

     Aaa:  Municipal  bonds  which are  rated  Aaa are  judged to be of the best
quality.  They carry the smallest degree of investment risk.  Interest  payments
are protected by a large or by an  exceptionally  stable margin and principal is
secure. While the various protective elements are likely to change, such changes
as can be  visualized  are most  unlikely  to impair  the  fundamentally  strong
position of such issues.

     Aa:  Municipal bonds which are rated Aa are judged to be of high quality by
all  standards.  Together  with the Aaa group they  comprise  what are generally
known as high grade bonds.  They are rated lower than Aaa bonds because  margins
of protection may not be as large or  fluctuation of protective  elements may be
of  greater  amplitude  or there may be other  elements  present  which make the
long-term risks appear somewhat larger than in Aaa securities.

     A:  Municipal  bonds which are rated A possess  many  favorable  investment
attributes and are to be considered as upper medium grade  obligations.  Factors
giving  security to principal and interest are considered  adequate but elements
may be present which  suggest a  susceptibility  to  impairment  sometime in the
future.

     Baa:  Municipal  bonds which are rated Baa are  considered  as medium grade
obligations,  i.e.,  they are  neither  highly  protected  nor  poorly  secured.
Interest  payments and principal  security  appear  adequate for the present but
certain  protective  elements  may  be  characteristically  lacking  or  may  be
unreliable over any great length of time. Such bonds lack outstanding investment
characteristics and in fact may have speculative characteristics as well.

     Ba:  Municipal  bonds  which  are rated Ba are  judged to have  speculative
elements;  their  future  cannot  be  considered  as  well-assured.   Often  the
protection of interest and principal payments may be very moderate,  and thereby
not  well  safeguarded  during  other  good  and  bad  times  over  the  future.
Uncertainty of position characterizes bonds in this class.

     B: Municipal bonds which are rated B generally lack  characteristics of the
desirable  investment.  Assurance  of  interest  and  principal  payments  or of
maintenance  of other terms of the contract  over any long period of time may be
small.

     Caa: Municipal bonds which are rated Caa are of poor standing.  Such issues
may be in default or there may be present  elements  of danger  with  respect to
principal or interest.

     Ca:  Municipal  bonds which are rated Ca  represent  obligations  which are
speculative  in high  degree.  Such  issues  are often in  default or have other
marked shortcomings.

     C:  Municipal  bonds which are rated C are the lowest rated class of bonds,
and issues so rated can be regarded as having  extremely  poor prospects of ever
attaining any real investment standing.

     Moody's  applies  numerical  modifiers (1, 2 and 3) in each generic  rating
classification  from Aa  through B in its  corporate  bond  rating  system.  The
modifier 1 indicates  that the  security  ranks in the higher end of its generic
rating  category;  modifier 2  indicates  a mid-range  ranking;  and  modifier 3
indicates that the issuer ranks in the lower end of its generic rating category.

Municipal Notes

     Moody's  ratings  for  municipal  notes  and  other  short-term  loans  are
designated Moody's Investment Grade (MIG). This distinction is in recognition of
the differences  between short-term and long-term credit risk. Loans bearing the
designation  MIG 1 are  of the  best  quality,  enjoying  strong  protection  by


                                       31
<PAGE>


established  cash  flows of funds  for their  servicing  or by  established  and
broad-based access to the market for refinancing.  Loans bearing the designation
MIG 2 are of high  quality,  with margins of  protection  ample  although not so
large as in the  preceding  group.  Loans bearing the  designation  MIG 3 are of
favorable  quality,  with all security  elements  accounted  for but lacking the
undeniable  strength of the preceding  grades.  Market access for refinancing in
particular, is likely to be less well established. Notes bearing the designation
MIG 4 are judged to be of adequate  quality,  carrying  specific risk but having
protection  commonly  regarded  as required of an  investment  security  and not
distinctly or predominantly speculative.

Commercial Paper

     Moody's  Commercial Paper Ratings are opinions of the ability of issuers to
repay  punctually  promissory  senior  debt  obligations  not having an original
maturity in excess of one year.  Issuers rated  "Prime-1" or "P-1" indicates the
highest quality repayment capacity of the rated issue.

     The  designation  "Prime-2" or "P-2" indicates that the issuer has a strong
capacity for repayment of senior  short-term  promissory  obligations.  Earnings
trends and  coverage  ratios,  while sound,  may be more  subject to  variation.
Capitalization characteristics, while still appropriate, may be more affected by
external conditions. Ample alternative liquidity is maintained.

     The  designation  "Prime-3"  or  "P-3"  indicates  that the  issuer  has an
acceptable  capacity for repayment of  short-term  promissory  obligations.  The
effect  of  industry   characteristics  and  market  compositions  may  be  more
pronounced.  Variability in earnings and  profitability may result in changes in
the  level of debt  protection  measurements  and may  require  relatively  high
financial leverage. Adequate alternate liquidity is maintained.

     Issues  rated  "Not  Prime"  do not fall  within  any of the  Prime  rating
categories.

Standard & Poor's Corporation ("S&P")
Municipal Bonds

     AAA: Municipal bonds rated AAA are highest grade  obligations.  Capacity to
pay interest and repay principal is extremely strong.

     AA:  Municipal  bonds  rated AA have a very high  degree of safety and very
strong capacity to pay interest and repay principal and differs from the highest
rated issues only in small degree.

     A: Municipal bonds rated A are regarded as upper medium grade.  They have a
strong  degree  of safety  and  capacity  to pay  interest  and repay  principal
although  they are  somewhat  more  susceptible  in the long term to the adverse
effects of changes in circumstances and economic  conditions than debt in higher
rated categories.

     BBB: Municipal bonds rated BBB are regarded as having a satisfactory degree
of safety and  capacity  to pay  interest  and re-pay  principal.  Whereas  they
normally exhibit adequate protection parameters,  adverse economic conditions or
changing  circumstances  are more  likely to lead to a weakened  capacity to pay
interest  and  re-pay  principal  for bonds in this  category  than for bonds in
higher rated categories.

     BB, B, CCC, CC:  Municipal  bonds rated BB, B, CCC and CC are regarded,  on
balance,  as predominantly  speculative with respect to capacity to pay interest
and pre-pay principal in accordance with the terms of the bond. BB indicates the
lowest degree of  speculation  and CC the highest degree of  speculation.  While
such bonds will likely have some quality and protective  characteristics,  these
are  outweighed  by  large  uncertainties  or major  risk  exposure  to  adverse
conditions.

     C: The rating C is reserved  for income bonds on which no interest is being
paid.


                                       32
<PAGE>


     D: Bonds rated D are in default,  and payment of interest and/or  repayment
of principal is in arrears.

     NR: Indicates that no rating has been requested, that there is insufficient
information  on which to base a  rating  or that S&P does not rate a  particular
type of bond as a matter of policy.

Municipal Notes

     SP-1: Very strong or strong  capacity to pay principal and interest.  Those
issues determined to possess overwhelming safety characteristics will be given a
plus (+) designation.

     SP-2: Satisfactory capacity to pay principal and interest.

Commercial Paper

     S&P Commercial  Paper ratings are current  assessments of the likelihood of
timely payment of debts having an original maturity of no more than 365 days.

     A-1:  The A-1  designation  indicates  that the degree of safety  regarding
timely payment is very strong.

     A-2:  Capacity  for  timely  payment  on issues  with this  designation  is
satisfactory.  However,  the  relative  degree  of  safety is not as high as for
issues designated "A-1".

     A-3: Issues  carrying this  designation  have adequate  capacity for timely
payment. They are, however, more vulnerable to the adverse effects of changes in
circumstances than obligations carrying the higher designations.

     B: Issues rated "B" are regarded as having only a speculative  capacity for
timely payment.

     C: This rating is assigned to short-term debt  obligations  with a doubtful
capacity of payment.

     D: Debt rated "D" is in payment default.

     NR: Indicates that no rating has been requested, that there is insufficient
information  on which to base a  rating  or that S&P does not rate a  particular
type of bond as a matter of policy.

     The ratings  assigned by S&P may be modified by the  addition of a plus (+)
or minus (-) sign to show relative standing within its major rating categories.



                                       33
<PAGE>


                                   Appendix B

RISK FACTORS REGARDING INVESTMENTS IN NORTH CAROLINA MUNICIPAL SECURITIES

   
     While North Carolina has been moving from an  agricultural to a service and
goods producing economy in recent years,  agriculture remains a basic element in
the economy of North  Carolina,  with  tobacco  production  being a  significant
source of  agricultural  income.  The  tobacco  industry  in North  Carolina  is
currently in decline with tobacco growers' quotas over the last two years having
been cut 35%  because  of  declining  cigarette  sales.  Tobacco  production  is
expected to suffer still further  because  cigarette sales are projected to drop
as  manufacturers  raise prices to cover the costs of the United States  tobacco
settlement.  North  Carolina is also the number two hog producing  state and hog
prices are currently in a steep decline,  resulting in significant losses by hog
producers.  These  developments  will likely  adversely  impact the agricultural
sector of the North Carolina economy. A strong agribusiness sector also supports
farmers with farm inputs (fertilizer, insecticide, pesticide and farm machinery)
and  processing  of  commodities  produced  by farmers  (vegetable  canning  and
cigarette manufacturing).  Manufacturing,  tourism and mining are also important
to the State's economy. North Carolina's  manufacturing  employment is among the
largest in the  Southeast,  with  textiles  being the largest  single  source of
manufacturing  employment in North Carolina.  However,  certain  portions of the
North Carolina  manufacturing  sector,  particularly the textile industry,  have
been hurt by foreign competition. Tourist spending has become a larger factor in
the North  Carolina  economy in recent  years.  While most  sectors of the North
Carolina economy,  excluding  textiles,  have experienced growth in the last few
years,  the rate of future growth is expected to be slowed by a limited increase
in available  new labor.  In fact,  while  continued  economic  growth for North
Carolina  is  projected  for 1999,  the rate of that  growth is forecast to slow
statewide  and in most  regions of the State.  Major  reasons  for the  expected
slower  growth are a  reduction  in retail  sales  growth  together  with slower
residential construction.

    The North Carolina State  Constitution  requires that the total expenditures
of the State for each  fiscal  period  covered by the budget must not exceed the
total receipts during the fiscal period and the surplus in the State Treasury at
the beginning of the period.  During the State's  1990-1991  fiscal year,  North
Carolina began facing a substantial budget shortfall  resulting from the failure
of revenues received by the State to meet projected levels.  While the State was
successful  in dealing with the problem,  pressure on State  revenues will be an
ongoing  problem.  Because of taxpayer  litigation  concerning  the now repealed
intangibles tax, North Carolina is in the process of completing the payment of a
multi-million  dollar tax refund of the intangibles  tax for certain years.  The
State  had set  aside  certain  funds in  anticipation  of  having  to pay these
refunds.

    General  obligations of the State are currently rated "AAA" and "Aaa" by S&P
and  Moody's,  respectively.  There  can  be  no  assurance  that  the  economic
conditions  on which these  ratings are based will  continue or that  particular
bond issues may not be adversely  affected by changes in economic,  political or
other  conditions,  including the State's response to any future budget problem.
When the budget shortfall  problem first  developed,  the State was cautioned by
S&P and Moody's  that a failure to respond  adequately  to the budget  shortfall
could  result in a  reevaluation  of the ratings  given to the  State's  general
obligations  and the State's  response  to any future  budget  problems  will be
important to the  maintenance  of its current  ratings.  Moreover,  such ratings
apply  only to  obligations  of the  State  and not to  those  of its  political
subdivisions, and the economic information provided above may not be relevant to
obligations issued by such political subdivisions.
    


                                       34
<PAGE>


                                   Appendix C

                 HISTORY OF J. & W. SELIGMAN & CO. INCORPORATED

     Seligman's  beginnings date back to 1837, when Joseph Seligman,  the oldest
of eight  brothers,  arrived in the United  States from  Germany.  He earned his
living as a pack peddler in  Pennsylvania,  and began  sending for his brothers.
The Seligmans became successful merchants,  establishing businesses in the South
and East.

     Backed by nearly thirty years of business success - culminating in the sale
of government  securities to help finance the Civil War - Joseph Seligman,  with
his brothers,  established the international banking and investment firm of J. &
W.  Seligman & Co. In the years that  followed,  the Seligman  Complex  played a
major role in the  geographical  expansion  and  industrial  development  of the
United States.

The Seligman Complex:

 ...Prior to 1900

o    Helps finance America's fledgling railroads through underwritings.
o    Is admitted to the New York Stock  Exchange  in 1869.  Seligman  remained a
     member of the NYSE until 1993,  when the  evolution of its business made it
     unnecessary.
o    Becomes a prominent underwriter of corporate securities, including New York
     Mutual Gas Light Company, later part of Consolidated Edison.
o    Provides financial  assistance to Mary Todd Lincoln and urges the Senate to
     award her a pension.
o    Is appointed U.S. Navy fiscal agent by President Grant.
o    Becomes a leader in raising  capital  for  America's  industrial  and urban
     development.

 ...1900-1910

o    Helps Congress finance the building of the Panama Canal.

 ...1910s

o    Participates  in  raising  billions  for Great  Britain,  France and Italy,
     helping to finance World War I.

 ...1920s

o    Participates  in hundreds of successful  underwritings  including those for
     some  of the  Country's  largest  companies:  Briggs  Manufacturing,  Dodge
     Brothers, General Motors,  Minneapolis-Honeywell Regulatory Company, Maytag
     Company, United Artists Theater Circuit and Victor Talking Machine Company.
o    Forms  Tri-Continental  Corporation  in 1929,  today the nation's  largest,
     diversified  closed-end equity investment company,  with over $2 billion in
     assets and one of its oldest.

 ...1930s

o    Assumes  management of Broad Street  Investing  Co. Inc.,  its first mutual
     fund, today known as Seligman Common Stock Fund, Inc.
o    Establishes Investment Advisory Service.



                                       35
<PAGE>



 ...1940s

o    Helps shape the Investment Company Act of 1940.
o    Leads in the  purchase  and  subsequent  sale to the public of Newport News
     Shipbuilding  and  Dry  Dock  Company,  a  prototype  transaction  for  the
     investment banking industry.
o    Assumes management of National Investors Corporation, today Seligman Growth
     Fund, Inc.
o    Establishes Whitehall Fund, Inc., today Seligman Income Fund, Inc.

 ...1950-1989

o    Develops new open-end  investment  companies.  Today,  manages more than 40
     mutual fund portfolios.
o    Helps  pioneer  state-specific,  municipal  bond  funds,  today  managing a
     national and 18 state-specific municipal funds.
o    Establishes J. & W. Seligman Trust Company and J. & W. Seligman  Valuations
     Corporation.
o    Establishes  Seligman  Portfolios,  Inc.,  an  investment  vehicle  offered
     through variable annuity products.

 ...1990s

o    Introduces  Seligman  Select  Municipal  Fund,  Inc. and  Seligman  Quality
     Municipal  Fund,  Inc.,  two  closed-end  funds that invest in high quality
     municipal bonds.
o    In 1991 establishes a joint venture with Henderson plc, of London, known as
     Seligman Henderson Co., to offer global investment products.
o    Introduces  to  the  public   Seligman   Frontier   Fund,   Inc.,  a  small
     capitalization mutual fund.
o    Launches  Seligman  Henderson Global Fund Series,  Inc., which today offers
     five separate  series:  Seligman  Henderson  International  Fund,  Seligman
     Henderson  Global  Smaller  Companies  Fund,   Seligman   Henderson  Global
     Technology Fund,  Seligman  Henderson Global Growth  Opportunities Fund and
     Seligman Henderson Emerging Markets Growth Fund.
o    Launches  Seligman Value Fund Series,  which currently  offers two separate
     series: Seligman Large-Cap Value Fund and Seligman Small-Cap Value Fund.



                                       36
<PAGE>
                                    SELIGMAN
                                 ---------------
                                    MUNICIPAL
                                  SERIES TRUST



                                  ANNUAL REPORT
                               SEPTEMBER 30, 1998
                                    ---------
                                Providing Income
                               Exempt From Regular
                                   Income Tax




                            J. & W. SELIGMAN & CO.
                                 INCORPORATED
                               ESTABLISHED 1864

<PAGE>

Seligman -- Times Change...Values Endure

J. & W. Seligman & Co. Incorporated is a firm with a long tradition of
investment  expertise,  offering  a broad  array of  investment  choices to
help today's investors seek their long-term financial goals.

Times Change...

Established in 1864, Seligman's history of providing financial services has been
marked not by fanfare, but rather by a quiet and firm adherence to financial
prudence. While the world has changed dramatically in the 134 years since
Seligman first opened its doors, the firm has continued to offer its clients
high-quality investment solutions through changing times.

In the late 19th century, as the country grew, Seligman helped finance the
westward expansion of the railroads, the construction of the Panama Canal, and
the launching of urban transit systems. In the first part of the 20th century,
as America became an industrial power, the firm helped fund the growing capital
needs of the nascent automobile and steel industries.

With the formation of Tri-Continental Corporation in 1929 -- today, the nation's
largest diversified publicly-traded closed-end investment company -- Seligman
began shifting its emphasis from investment banking to investment management.
Despite the stock market crash and ensuing depression, Seligman was convinced of
the importance that investment companies could have in building wealth for
individual investors and launched its first mutual fund in 1930.

In the decades that followed, Seligman has continued to offer forward-looking
investment solutions, including funds that focus on technology stocks, municipal
bonds, and international securities.

 ...Values Endure

Seligman is proud of its distinctive past and of the traditional values that
continue to shape the firm's business decisions and investment judgment. While
much has changed over the years, the firm's commitment to providing prudent
investment management that seeks to build wealth for clients over time is an
enduring value that will guide Seligman into the new millennium.

Table of Contents

To the Shareholders.....................................1
Interview With Your Portfolio Manager...................2
Performance Overview and
   Portfolio Summary....................................4
Portfolios of Investments...............................8
Statements of Assets and Liabilities...................14
Statements of Operations...............................15
Statements of Changes in Net Assets....................16
Notes to Financial Statements..........................18
Financial Highlights...................................21
Report of Independent Auditors.........................25
Trustees...............................................26
Executive Officers and For More Information............27
Glossary of Financial Terms............................28

<PAGE>

To The Shareholders

Seligman Municipal Series Trust posted strong results for its fiscal year ended
September 30, 1998. Although the growth of the US economy slowed from its record
pace, the expansion continued. Inflation and interest rates reached their lowest
levels in a quarter century, and unemployment was at its lowest level since
1970.

Despite ongoing strength in the US, economic turmoil spread throughout the
rest of the world. The Asian financial crisis worsened, Japan failed to resolve
its banking problems, Russia's economy became chaotic, and economic crises
loomed throughout much of Latin America, particularly in Brazil. Fears of risk
in nearly all types of financial assets drove investors out of the equity
markets and into the relative safety and quality of investments such as US
Treasury bonds, often a haven from a turbulent stock market. This "flight to
quality" helped create an attractive environment for municipal bonds.

Major factors influencing the market for municipal bonds over the year were the
prolonged US Treasury bond rally and heavy issuance of municipal securities.
Municipal bond holders fared well as interest rates generally declined over this
time period. Nonetheless, the performance of the municipal market lagged that of
the Treasury bond market, as investors focused on quality because of concerns
about financial instability. Treasury bond prices rose sharply over the 12-month
period, sending yields significantly lower. At one point in the period, selected
municipal obligations traded at the same yield as Treasuries, even though
municipals offered more favorable tax treatment. Currently, long-term municipal
bonds have not been this attractive, relative to long-term Treasuries, since
1986, when proposed legislation threatened the tax-exempt status of municipal
securities.

Looking ahead, we see the favorable climate for municipal bonds continuing. Low
inflation and a growing economy should serve to protect the value of municipal
investments. Fewer new issues may be entering the market, which could tighten
the supply/demand balance. This could improve overall total rate-of-return
prospects. Also, although the US economy continues to grow, this growth is
slowing, and the global situation is forcing the Federal Reserve into a more
benign strategy on interest rates. The Fed has already cut short-term rates
twice, and we expect more cuts until a semblance of international stability
emerges. Finally, the municipal market's record of safety and stability offers
further appeal to investors in these more troubled times, especially as equity
market volatility continues.

All in all, we feel the investment attractiveness of municipals remains
compelling. In this period of global economic uncertainty and low interest
rates, municipals are an appropriate alternative for those investors with
suitable investment requirements.

As you may know, companies are modifying their computer systems to recognize
dates of January 1, 2000, and beyond. This is often referred to as the "Y2K"
problem. Unless systems are updated, many applications may interpret the last
two digits of the year to mean 1900 instead of 2000. J. & W. Seligman & Co.
Incorporated, the Seligman Investment Companies, and Seligman Data Corp., your
shareholder service agent, have jointly established a team to ensure that your
investment and shareholder services are not disrupted. This team is supported
by consulting firms specializing in Y2K solutions. Substantial work has been
performed to date, and we are confident that when our plans are finalized and
all systems are tested, there will be no disruption in the services provided by
your Trust.

Thank you for your continued support of Seligman Municipal Series
Trust. We look forward to serving your investment needs in the many years to
come. A discussion with your Portfolio Manager, performance overviews, portfolio
holdings, and financial statements follow this letter. By order of the Trustees,

/s/ William C. Morris
- ---------------------
William C. Morris
Chairman

                                /s/ Brian T.  Zino
                                ------------------
                                Brian T.  Zino
                                President

October 30, 1998

                                       1
<PAGE>

Interview With Your Portfolio Manager,
Thomas G. Moles

Q.   What economic factors influenced Seligman Municipal Series Trust in the
     last 12 months?

A.   The continuing combination of low inflation, low unemployment, and steady
     economic growth throughout the past 12 months sustained what became one of
     the nation's longest peacetime economic expansions. This contributed to the
     overall improvement of the financial condition of America's states, cities,
     and municipalities. Over the past year, credit rating upgrades
     significantly outnumbered rating downgrades. These upgrades enhanced the
     overall creditworthiness of the municipal marketplace. But, by the end of
     your Trust's fiscal year, there was widespread expectation that the US may
     be unable to avoid the economic slowdown that has already gripped much of
     the world. While many economists were calling a recession unlikely, the
     fact that they were including its potential in their forecasts implied that
     the ongoing domestic economic expansion would not continue. In the final
     months of the fiscal year, turmoil in world markets began to contribute to
     a modest slowdown in the pace of US economic growth, and prevented an
     acceleration in the rate of inflation. In September, the Federal Reserve
     Board lowered the federal funds rate by one-quarter of one percent. With a
     warning that growing fear among investors and lenders was threatening the
     nation's economic expansion, the Fed unexpectedly cut interest rates again
     in October, the first time in four and a half years that the central bank
     had changed interest-rate policy outside one of its normally scheduled
     meetings. This unusual timing suggested that the Fed believed that the
     domestic economy is beginning to deteriorate as the worldwide financial
     crisis gains momentum, and that a credit shortage may be developing that
     could further curb growth. Fed officials have hinted that more
     interest-rate reductions will ensue if the global financial turmoil
     escalates. Declining US equity markets reflected these fears, as investors
     sold stocks in favor of the relative safety and quality of US Treasury
     bonds, which are often considered a haven from a volatile stock market.


Q.   What market factors influenced Seligman Municipal Series Trust in the last
     12 months?

A.   Overall, Seligman Municipal Series Trust ended its fiscal year on a
     positive note. During the period, long-term municipal yields fluctuated
     within a narrow range, decreasing by almost one-half of a point. The
     declining interest-rate environment led to rising prices for the majority
     of holdings and competitive performance results for each Series' net asset
     value.

     However, the municipal market underperformed the US Treasury market
     during the 12-month period. The ongoing strength in the economy over the
     year caused the supply of Treasury bonds to shrink, as the federal
     government needed to borrow less after running its first budget surplus in
     29 years. But, the solid economy and low interest rates caused the supply
     of

A TEAM APPROACH

Seligman Municipal Series Trust is managed by the Seligman Municipals Team,
headed by Thomas G. Moles. Mr. Moles is assisted in the management of the Trust
by a group of seasoned professionals who are responsible for research and
trading consistent with the Trust's investment objective.


[Photo]
Seligman Municipals Team: (from left) Audrey Kuchtyak, Theresa Barion, Debra
McGuinness, (seated) Eileen Comerford, Thomas G. Moles
(Portfolio Manager)

                                        2
<PAGE>
Interview With Your Portfolio Manager,
Thomas G. Moles

     municipal bonds to grow. The net reduction in Treasury financing and the
     increasing municipal bond issuance was compounded by the increased investor
     demand for Treasuries. These factors caused the decline in Treasury yields
     to significantly outpace the drop in municipal yields. Because of these
     factors, long-term municipal bonds have not been as attractive, relative to
     long-term Treasuries, since 1986, when proposed tax legislation threatened
     the tax-exempt status of municipal securities.

Q.   What was your investment strategy?

A.   Throughout the 12-month period, the long-term interest-rate outlook was
     positive, and Seligman Municipal Series Trust was positioned to benefit
     from the declining interest-rate environment. The Seligman Municipals Team
     engaged in duration-extension trades, selling shorter-term holdings and
     replacing them with long-term, current-coupon bonds. Current-coupon bonds
     have coupon rates that are at or near current market rates. Generally, when
     long-term bond yields decline, the prices appreciate more than those of
     shorter-term bonds.

     During the past 12 months, we also improved the call protection of the
     portfolios. As our bonds mature, older holdings approach their optional
     call dates (a callable bond can be redeemed by the issuer, prior to
     maturity, on specified dates and at predetermined prices). Declining
     interest rates increase the risk that these bonds will be called by the
     issuer. The lower interest-rate environment over the 12-month period
     prompted many municipal issuers to retire outstanding, higher-coupon debt.
     Additionally, as a direct result of the significant increase in refunding
     volume, many of the portfolio's holdings were advance-refunded, which had a
     positive impact on performance. In general, when a municipal bond is
     refunded, total return performance is improved, and the bond's rating is
     often upgraded.

Q.   What is your outlook?

A.   Long-term municipal yields have fallen to levels not seen in many years.
     Municipal securities continue to offer a significant yield advantage
     compared to the after-tax returns of other fixed-income investments.
     Further, as the yield spread between municipal and Treasury bonds
     normalizes, municipal market performance should improve, relative to the
     Treasury market. Finally, the municipal market's record of safety and
     stability may become more appealing as volatility persists in the US equity
     markets. Consequently, we remain optimistic about the long-term prospects
     for the municipal bond market, and for Seligman Municipal Series Trust.

                                       3
<PAGE>

Performance Overview And Portfolio Summary

 The following charts compare a $10,000 hypothetical investment made in each
Series of Seligman Municipal Series Trust Class A shares, with and without the
initial 4.75% maximum sales charge, for the 10-year or since-inception (where
applicable) periods ended September 30, 1998, to a $10,000 hypothetical
investment made in the Lehman Brothers Municipal Bond Index (Lehman Index) for
the same periods. The performance of each Series of Seligman Municipal Series
Trust Class D shares is not shown in the charts but is included in the table
below each chart. It is important to keep in mind that the Lehman Index does not
include any fees or sales charges and does not reflect state-specific bond
market performance. The table below each chart also includes relevant portfolio
characteristics for each Series.

SELIGMAN CALIFORNIA MUNICIPAL HIGH-YIELD SERIES

        With Sales Charge        Without Sales Charge    Lehman Index
9/30/88       9,529                    10,000               10,000
12/31/88      9,847                    10,334               10,185
3/31/89       9,952                    10,444               10,252
6/30/89      10,414                    10,929               10,859
9/30/89      10,444                    10,961               10,867
12/31/89     10,760                    11,292               11,284
3/31/90      10,856                    11,393               11,335
6/30/90      11,090                    11,638               11,600
9/30/90      11,026                    11,571               11,607
12/31/90     11,406                    11,970               12,107
3/31/91      11,668                    12,245               12,381
6/30/91      11,920                    12,510               12,645
9/30/91      12,407                    13,021               13,136
12/31/91     12,602                    13,225               13,578
3/31/92      12,782                    13,414               13,619
6/30/92      13,241                    13,895               14,136
9/30/92      13,524                    14,192               14,511
12/31/92     13,803                    14,486               14,775
3/31/93      14,204                    14,906               15,323
6/30/93      14,614                    15,337               15,824
9/30/93      14,966                    15,706               16,359
12/31/93     15,171                    15,921               16,588
3/31/94      14,821                    15,554               15,677
6/30/94      14,905                    15,642               15,851
9/30/94      15,027                    15,770               15,959
12/31/94     14,747                    15,477               15,729
3/31/95      15,703                    16,479               16,841
6/30/95      16,004                    16,795               17,247
9/30/95      16,357                    17,166               17,744
12/31/95     16,894                    17,729               18,475
3/31/96      16,739                    17,566               18,251
6/30/96      16,971                    17,811               18,392
9/30/96      17,418                    18,279               18,815
12/31/96     17,827                    18,708               19,295
3/31/97      17,755                    18,633               19,250
6/30/97      18,361                    19,269               19,914
9/30/97      18,941                    19,878               20,516
12/31/97     19,381                    20,340               21,072
3/31/98      19,641                    20,612               21,314
6/30/98      19,970                    20,957               21,638
9/30/98      20,542                    21,558               22,302

The performance of Class D shares will be greater than or less than the
performance shown for Class A shares, based on the differences in sales charges
and fees paid by shareholders.

Investment Results per Share

TOTAL RETURNS
For Periods Ended September 30, 1998
<TABLE>
<CAPTION>
                                                                              AVERAGE ANNUAL
                                               -----------------------------------------------------------------------
                                                                                                            CLASS D
                                                                                                             SINCE
                                                 SIX             ONE             FIVE             10       INCEPTION
                                               MONTHS*           YEAR            YEARS           YEARS       2/1/94
                                              ---------        ---------         ---------      --------  ------------
<S>                                            <C>               <C>              <C>             <C>         <C>
Class A**
With Sales Charge                              (0.35)%           3.30%            5.49%            7.46%       n/a
Without Sales Charge                            4.59             8.45             6.54             7.98        n/a
Class D**

With 1% CDSC                                    2.96             6.47               n/a             n/a        n/a
Without CDSC                                    3.96             7.47               n/a             n/a        5.48%
Lehman Index***                                 4.64             8.71             6.40              8.35       6.29++
</TABLE>

<TABLE>
<CAPTION>
NET ASSET VALUE                                                 DIVIDEND, CAPITAL GAIN, AND YIELD INFORMATION
                                                                For Periods Ended September 30, 1998

               9/30/98        3/31/98      9/30/97                            DIVIDENDS++    CAPITAL GAIN++        SEC YIELD+++
               -------       --------      -------                           -----------    --------------         ----------
<S>             <C>            <C>          <C>                 <C>            <C>               <C>               <C>
Class A         $6.80          $6.66        $6.61               Class A        $0.320            $0.032            3.94%
Class D          6.80           6.67         6.61               Class D         0.260             0.032            3.25

<CAPTION>

HOLDINGS BY MARKET SECTOR0                                      MOODY'S/S&P RATINGS0
<S>                                    <C>                      <C>                <C>         <C>                <C>
Revenue Bonds                          85%                      Aaa/AAA            14%         Baa/BBB            25%
General Obligation Bonds               15                       Aa/AA               6          Non-Rated           3
                                                                A/A                52
WEIGHTED AVERAGE MATURITY              22.0 years
</TABLE>
- ------------
See footnotes on page 7.

                                       4
<PAGE>

PERFORMANCE OVERVIEW AND PORTFOLIO SUMMARY

SELIGMAN CALIFORNIA MUNICIPAL QUALITY SERIES

           With Sales Charge    Without Sales Charge     Lehman Index
9/30/88         9,530                  10,000               10,000
12/31/88        9,880                  10,367               10,185
3/31/89         9,948                  10,438               10,252
6/30/89        10,557                  11,077               10,859
9/30/89        10,470                  10,986               10,867
12/31/89       10,845                  11,379               11,284
3/31/90        10,832                  11,366               11,335
6/30/90        11,106                  11,653               11,600
9/30/90        10,912                  11,450               11,607
12/31/90       11,557                  12,126               12,107
3/31/91        11,751                  12,330               12,381
6/30/91        11,974                  12,564               12,645
9/30/91        12,478                  13,093               13,136
12/31/91       12,853                  13,487               13,578
3/31/92        12,833                  13,465               13,619
6/30/92        13,398                  14,058               14,136
9/30/92        13,670                  14,344               14,511
12/31/92       13,944                  14,632               14,775
3/31/93        14,608                  15,328               15,323
6/30/93        15,055                  15,797               15,824
9/30/93        15,573                  16,341               16,359
12/31/93       15,702                  16,476               16,588
3/31/94        14,662                  15,384               15,677
6/30/94        14,685                  15,409               15,851
9/30/94        14,723                  15,449               15,959
12/31/94       14,399                  15,109               15,729
3/31/95        15,691                  16,464               16,841
6/30/95        15,896                  16,679               17,247
9/30/95        16,320                  17,124               17,744
12/31/95       17,249                  18,099               18,475
3/31/96        16,886                  17,718               18,251
6/30/96        17,058                  17,899               18,392
9/30/96        17,463                  18,323               18,815
12/31/96       17,924                  18,807               19,295
3/31/97        17,802                  18,670               19,250
6/30/97        18,406                  19,313               19,914
9/30/97        19,013                  19,950               20,516
12/31/97       19,501                  20,462               21,072
3/31/98        19,675                  20,645               21,314
6/30/98        19,997                  20,982               21,638
9/30/98        20,661                  21,679               22,302

The performance of Class D shares will be greater than or less than the
performance shown for Class A shares, based on the differences in sales charges
and fees paid by shareholders.

Investment Results per Share

TOTAL RETURNS
For Periods Ended September 30, 1998

<TABLE>
<CAPTION>
                                                                                    AVERAGE ANNUAL
                                              ------------------------------------------------------------------------------
                                                                                                                CLASS D
                                                                                                                 SINCE
                                                 SIX             ONE             FIVE             10           INCEPTION
                                               MONTHS*           YEAR            YEARS           YEARS           2/1/94
                                              ---------        ---------         ---------      --------        ------------
<S>                                            <C>               <C>              <C>               <C>              <C>
Class A**
With Sales Charge                               0.03%            3.49%            4.80%             7.53%             n/a
Without Sales Charge                            5.01             8.67             5.82              8.04              n/a
Class D**
With 1% CDSC                                    3.54             6.71              n/a              n/a               n/a
Without CDSC                                    4.54             7.71              n/a              n/a              4.77%
Lehman Index***                                 4.64             8.71             6.40              8.35             6.29++
</TABLE>

<TABLE>
<CAPTION>
NET ASSET VALUE                                                 DIVIDEND, CAPITAL GAIN, AND YIELD INFORMATION
                                                                FOR PERIODS ENDED SEPTEMBER 30, 1998
                                                                ------------------------------------
               9/30/98        3/31/98      9/30/97                            DIVIDENDS++    CAPITAL GAIN++        SEC YIELD+++
               -------       --------      -------                           -----------    --------------         ----------
<S>             <C>            <C>          <C>                 <C>            <C>               <C>               <C>
Class A         $7.21          $7.03        $6.99               Class A        $0.334            $0.033            3.74%
Class D          7.19           7.01         6.97               Class D         0.270             0.033            3.06
<CAPTION>
HOLDINGS BY MARKET SECTOR0                                      MOODY'S/S&P RATINGS0
<S>                                    <C>                      <C>                <C>
Revenue Bonds                          86%                      Aaa/AAA            71%
General Obligation Bonds               14                       Aa/AA              16
                                                                A/A                13
WEIGHTED AVERAGE MATURITY              21.6 years
</TABLE>
- ----------
See footnotes on page 7.

                                       5
<PAGE>

PERFORMANCE OVERVIEW AND PORTFOLIO SUMMARY

SELIGMAN FLORIDA MUNICIPAL SERIES

          With Sales Charge    Without Sales Charge       Lehman Index
9/30/88         9,531                   10,000               10,000
12/31/88        9,926                   10,414               10,185
3/31/89         9,987                   10,478               10,252
6/30/89        10,735                   11,263               10,859
9/30/89        10,606                   11,128               10,867
12/31/89       11,053                   11,597               11,284
3/31/90        11,029                   11,571               11,335
6/30/90        11,317                   11,874               11,600
9/30/90        11,161                   11,710               11,607
12/31/90       11,766                   12,345               12,107
3/31/91        11,990                   12,579               12,381
6/30/91        12,236                   12,838               12,645
9/30/91        12,657                   13,279               13,136
12/31/91       13,015                   13,655               13,578
3/31/92        13,047                   13,689               13,619
6/30/92        13,562                   14,229               14,136
9/30/92        13,827                   14,507               14,511
12/31/92       14,196                   14,895               14,775
3/31/93        14,725                   15,449               15,323
6/30/93        15,363                   16,118               15,824
9/30/93        15,930                   16,713               16,359
12/31/93       16,116                   16,908               16,588
3/31/94        15,151                   15,896               15,677
6/30/94        15,269                   16,020               15,851
9/30/94        15,295                   16,047               15,959
12/31/94       15,226                   15,975               15,729
3/31/95        16,292                   17,093               16,841
6/30/95        16,550                   17,363               17,247
9/30/95        16,957                   17,791               17,744
12/31/95       17,765                   18,639               18,475
3/31/96        17,364                   18,218               18,251
6/30/96        17,493                   18,354               18,392
9/30/96        17,898                   18,778               18,815
12/31/96       18,256                   19,154               19,295
3/31/97        18,011                   18,897               19,250
6/30/97        18,719                   19,640               19,914
9/30/97        19,331                   20,282               20,516
12/31/97       19,960                   20,941               21,072
3/31/98        20,153                   21,144               21,314
6/30/98        20,458                   21,465               21,638
9/30/98        21,102                   22,140               22,302

The performance of Class D shares will be greater than or less than the
performance shown for Class A shares, based on the differences in sales charges
and fees paid by shareholders.

Investment Results per Share

TOTAL RETURNS
For Periods Ended September 30, 1998

<TABLE>
<CAPTION>
                                                                               AVERAGE ANNUAL
                                               ---------------------------------------------------------------------------
                                                                                                                CLASS D
                                                                                                                 SINCE
                                                 SIX             ONE             FIVE             10           INCEPTION
                                               MONTHS*           YEAR            YEARS           YEARS           2/1/94
                                              ---------        ---------        ---------      --------       ------------
<S>                                            <C>               <C>              <C>               <C>              <C>
Class A**
With Sales Charge                              (0.22)%           3.97%            4.76%          7.75%             n/a
Without Sales Charge                            4.71             9.16             5.79           8.27              n/a
Class D**

With 1% CDSC                                    3.29             7.32               n/a           n/a              n/a
Without CDSC                                    4.29             8.32               n/a           n/a             4.90%
Lehman Index***                                 4.64             8.71             6.40           8.35             6.29++
</TABLE>

<TABLE>
<CAPTION>
NET ASSET VALUE                                                 DIVIDEND, CAPITAL GAIN, AND YIELD INFORMATION
                                                                FOR PERIODS ENDED SEPTEMBER 30, 1998
               9/30/98        3/31/98      9/30/97                            DIVIDENDS++    CAPITAL GAIN++   SEC YIELD+++
               -------       --------      -------                           -----------    --------------    ----------
<S>             <C>            <C>          <C>                <C>             <C>               <C>          <C>
Class A         $8.07          $7.88        $7.80               Class A        $0.351            $0.072       3.74%
Class D          8.08           7.89         7.81               Class D         0.291             0.072       3.15

<CAPTION>
HOLDINGS BY MARKET SECTOR0                                      MOODY'S/S&P RATINGS0
<S>                                    <C>                      <C>                <C>
Revenue Bonds                          87%                      Aaa/AAA            65%
General Obligation Bonds               13                       Aa/AA              28
                                                                A/A                 5
                                                                Baa/BBB             2
WEIGHTED AVERAGE MATURITY              24.6 years
</TABLE>
- -----------
See footnotes on page 7.

                                       6
<PAGE>
PERFORMANCE OVERVIEW AND PORTFOLIO SUMMARY

SELIGMAN NORTH CAROLINA MUNICIPAL SERIES

          With Sales Charge     Without Sales Charge      Lehman Index
8/27/90         9,520                   10,000               10,000
9/30/90         9,387                    9,860               10,006
12/31/90        9,784                   10,277               10,437
3/31/91         9,982                   10,485               10,673
6/30/91        10,083                   10,591               10,900
9/30/91        10,510                   11,040               11,325
12/31/91       10,824                   11,370               11,705
3/31/92        10,779                   11,323               11,740
6/30/92        11,212                   11,777               12,186
9/30/92        11,479                   12,058               12,509
12/31/92       11,706                   12,297               12,737
3/31/93        12,197                   12,812               13,209
6/30/93        12,631                   13,268               13,641
9/30/93        13,139                   13,801               14,102
12/31/93       13,226                   13,893               14,300
3/31/94        12,335                   12,957               13,515
6/30/94        12,372                   12,996               13,665
9/30/94        12,377                   13,001               13,768
12/31/94       12,254                   12,872               13,560
3/31/95        13,323                   13,994               14,518
6/30/95        13,563                   14,247               14,868
9/30/95        13,852                   14,551               15,296
12/31/95       14,651                   15,390               15,927
3/31/96        14,255                   14,973               15,734
6/30/96        14,394                   15,120               15,855
9/30/96        14,738                   15,481               16,220
12/31/96       15,049                   15,807               16,633
3/31/97        14,993                   15,749               16,595
6/30/97        15,483                   16,264               17,168
9/30/97        15,918                   16,720               17,686
12/31/97       16,365                   17,190               18,165
3/31/98        16,504                   17,336               18,374
6/30/98        16,792                   17,638               18,653
9/30/98        17,287                   18,158               19,226

The performance of Class D shares will be greater than or less than the
performance shown for Class A shares, based on the differences in sales charges
and fees paid by shareholders.

Investment Results per Share

TOTAL RETURNS
For Periods Ended September 30, 1998
<TABLE>
<CAPTION>
                                                                               AVERAGE ANNUAL
                                              ---------------------------------------------------------------------------
                                                                                                 CLASS A       CLASS D
                                                                                                 SINCE         SINCE
                                                SIX               ONE             FIVE          INCEPTION     INCEPTION
                                               MONTHS*           YEAR             YEARS          8/27/90 00    2/1/94
                                              ---------        ---------         ---------     ------------   -----------
<S>                                            <C>               <C>              <C>          <C>              <C>
Class A**
With Sales Charge                              (0.19)%           3.46%            4.62%        6.99%             n/a
Without Sales Charge                            4.74             8.60             5.64         7.64              n/a
Class D**

With 1% CDSC                                    3.34             6.77               n/a        n/a               n/a
Without CDSC                                    4.34             7.77               n/a        n/a              4.83%
Lehman Index***                                 4.64             8.71             6.40         8.42+            6.29++
</TABLE>
<TABLE>
<CAPTION>
NET ASSET VALUE                                                 DIVIDEND, CAPITAL GAIN, AND YIELD INFORMATION
                                                                FOR PERIODS ENDED SEPTEMBER 30, 1998
                                                                ------------------------------------
               9/30/98        3/31/98      9/30/97                            DIVIDENDS++    CAPITAL GAIN++   SEC YIELD+++
              ---------      --------      -------                          -------------  ----------------   -----------
<S>             <C>            <C>          <C>                 <C>            <C>               <C>          <C>
Class A         $8.30          $8.10        $8.05               Class A        $0.358            $0.064       3.54%
Class D          8.30           8.10         8.05               Class D         0.295             0.064       2.97
<CAPTION>
HOLDINGS BY MARKET SECTOR0                                      MOODY'S/S&P RATINGS0
<S>                                    <C>                      <C>                <C>
Revenue Bonds                          77%                      Aaa/AAA            45%
General Obligation Bonds               23                       Aa/AA              38
                                                                A/A                17
WEIGHTED AVERAGE MATURITY              20.0 years
</TABLE>
- -----------
<TABLE>
<CAPTION>
<S>  <C>
  *  Returns for periods of less than one year are not annualized.
**   Return  figures  reflect  any change in price and  assume all  distributions  within  the  period are  invested  in
     additional  shares.  Returns for Class A shares are  calculated  with and  without the effect of the initial  4.75%
     maximum sales charge.  Returns for Class D shares are  calculated  with and without the effect of the 1% contingent
     deferred sales charge ("CDSC"),  charged on redemptions made within one year of the date of purchase. No adjustment
     was made to the  performance  of Class A shares for periods prior to  commencement  dates December 27, 1990, in the
     case of the Florida Series,  and January 1, 1993, in the case of the California  High-Yield and California  Quality
     Series,  for the annual  Administration,  Shareholder  Services and Distribution Plan fee of up to 0.25% of average
     daily net assets for each  Series.  The rates of return will vary and the  principal  value of an  investment  will
     fluctuate.  Shares,  if  redeemed,  may be worth more or less than their  original  cost. A portion of each Series'
     income may be subject to applicable state and local taxes, and any amount may be subject to the federal alternative
     minimum tax. Past performance is not indicative of future investment results.
***  The Lehman  Index is an  unmanaged  index that does not  include  any fees or sales  charges  and does not  reflect
     state-specific bond market performance. Investors cannot invest directly in an index.
  0  Percentages based on market values of long-term holdings at September 30, 1998.
 00  At its discretion,  the Manager waived all or a portion of its fees and, in some cases, reimbursed certain expenses
     for the North Carolina  Series.  This has the effect of increasing the Series' average annual total returns for the
     since-inception period.
 ++ From 1/31/94.
  + From 8/31/90.
 ++  Represents per share amount paid or declared for the year ended September 30, 1998.
+++  Current yield,  representing the annualized yield for the 30-day period ended September 30, 1998, has been computed
     in accordance with SEC regulations and will vary.
</TABLE>

                                       7

<PAGE>

Portfolio of Investments
September 30, 1998

CALIFORNIA HIGH-YIELD SERIES

<TABLE>
<CAPTION>
     FACE                                                                                      RATINGS+        MARKET
    AMOUNT                             MUNICIPAL BONDS                                       MOODY'S/S&P        VALUE
  ----------                           ---------------                                       ------------    -------------
<S>           <C>                                                                             <C>             <C>
  $2,500,000  Alameda, CA Certificates of Participation (City Hall Seismic
                  Upgrade Project), 6.20% due 5/1/2025...................................         NR/A         $2,689,075
   1,000,000  California Department of Veterans' Affairs Rev. (Home Purchase),
                  5 1/2% due 12/1/2018*..................................................          Aa3/A+       1,036,250
   2,190,000  California Department of Water Resources Water System Rev.
                  Central Valley Project), 6% due 12/1/2020..............................         Aa2/AA        2,334,606
     500,000  California Educational Facilities Authority Rev. (Los Angeles College
                   of Chiropractic Medicine), 5.60% due 11/1/2017........................         Baa2/NR         525,270
   2,500,000  California Educational Facilities Authority Rev. (Loyola Marymount
                  University), 5 3/4% due 10/1/2024......................................          A1/NR        2,667,225
   2,500,000  California Health Facilities Financing Authority Rev. (Cedars-Sinai
                  Medical Center), 5 1/4% due 8/1/2027...................................         Aaa/AAA       2,560,025
   2,500,000  California Health Facilities Financing Authority Rev. (Kaiser Permanente),
                   5.40% due 5/1/2028....................................................           A3/A        2,580,350
   1,500,000  California Housing Finance Agency Home Mortgage Rev.,
                  6 3/8% due 8/1/2027*...................................................          Aa2/AA-      1,617,465
   2,500,000  California Housing Finance Agency (Single Family Mortgage),
                  5.40% due 8/1/2028*....................................................         Aaa/AAA       2,537,950
   2,500,000  California Pollution Control Financing Authority Rev.  (San Diego
                  Gas & Electric Co.), 5.85% due 6/1/2021*...............................           A1/A+       2,603,250
   1,750,000  California Pollution Control Financing Authority Rev. (Pacific Gas &
                  Electric Co.), 5 7/8% due 6/1/2023*....................................           A1/AA-      1,851,045
   1,000,000  California Pollution Control Financing Authority Rev. (Pacific Gas &
                  Electric Co.), 5.85% due 12/1/2023*....................................           A1/AA-      1,056,770
   2,000,000  California State GOs, 5 1/4% due 10/1/2019.................................           A1/A+       2,049,000
   2,500,000  Cupertino, CA Certificates of Participation (Capital Improvement Projects),
                  5 3/4% due 1/1/2016....................................................           A1/A+       2,632,300
   3,000,000  Foothill/Eastern Transportation Corridor Agency, CA Toll Road Rev.,
                  6% due 1/1/2034........................................................          Baa/BBB-     3,238,500
   1,300,000  Los Angeles, CA Wastewater System Rev., 7.10% due 6/1/2018.................           A1/A+       1,353,794
   1,000,000  Oxnard Union High School District, CA Certificates of Participation
                  (Union High School), 7.70% due 11/1/2019...............................           NR/NR       1,066,160
     675,000  Petaluma, CA Community Development Commission Tax Allocation Bonds
                  (Central Business District), 9.30% due 5/15/2010.......................          Baa1/NR        678,213
   2,030,000  Pleasanton, CA Joint Powers Financing Authority Reassessment Rev.,
                  6.15% due 9/2/2012.....................................................         Baa1/NR       2,198,632
   4,000,000  Puerto Rico Highway & Transportation Authority Rev., 5 1/2% due 7/1/2036...         Baa1/A        4,361,840
</TABLE>

                                       8
<PAGE>

Portfolio of Investments
September 30, 1998

CALIFORNIA HIGH-YIELD SERIES (continued)

<TABLE>
<CAPTION>
     FACE                                                                                      RATINGS+        MARKET
    AMOUNT                             MUNICIPAL BONDS                                       MOODY'S/S&P        VALUE
  ----------                           ---------------                                       ------------    -------------
<S>           <C>                                                                             <C>             <C>
  $3,000,000  San Bernardino, CAJoint Powers Financing Authority (California Dept. of
                  Transportation Lease), 5 1/2% due 12/1/2020.............................       A/A          $3,129,210
   2,500,000  San Joaquin Hills, CA Transportation Corridor Agency Rev. (Orange County
                  Toll Road), 5 1/2% due 1/15/2028........................................     Baa3/BBB-       2,591,250
   3,000,000  San Joaquin Hills, CA Transportation Corridor Agency Rev. (Orange County
                  Senior Lien Toll Road), 6 3/4% due 1/1/2032.............................      Aaa/AAA        3,423,450
   2,500,000  Santa Barbara, CA Certificates of Participation, 5.70% due 3/1/2011.........        A1/A+        2,700,000
   1,000,000  Santa Clara, CA Improvement Bonds Project No. 186 (Santa Clara
                  Convention Center Complex), 7.10% due 9/2/2011..........................       NR/NR         1,036,590
   1,000,000  Southern California Public Power Authority Power Project Rev.
                  (Multiple Projects),  6% due 7/1/2018...................................        A/A          1,025,950
     730,000  Stanislaus, CA Waste-to-Energy Financing Agency Solid Waste Facility Rev.
                  (Ogden Martin System of Stanislaus, Inc. Project), 7 1/2% due 1/1/2005..      NR/BBB+          767,851
   1,180,000  Stanislaus, CA Waste-to-Energy Financing Agency Solid Waste Facility Rev.
                  (Ogden Martin System of Stanislaus, Inc. Project), 7 5/8% due 1/1/2010..      NR/BBB+        1,244,699
   2,500,000  Washington Township, CA Hospital District Hospital Healthcare System Rev.,
                  5 1/2% due 7/1/2018.....................................................       A2/NR         2,570,675
   2,230,000  West Covina, CA Certificates of Participation (Queen of the Valley Hospital),
                  6 1/2% due 8/15/2024....................................................       A2/NR         2,592,843
 
                                                                                                             -----------
TOTAL MUNICIPAL BONDS (Cost $57,975,717)-- 96.8%..........................................                    62,720,238

VARIABLE RATE DEMAND NOTES (Cost $1,300,000)-- 2.0%.......................................                     1,300,000
OTHER ASSETS LESS LIABILITIES-- 1.2%......................................................                       746,997
                                                                                                             -----------
NET ASSETS-- 100.0%.......................................................................                   $64,767,235
                                                                                                             ===========
</TABLE>

CALIFORNIA QUALITY SERIES

<TABLE>
<CAPTION>
     FACE                                                                                      RATINGS+        MARKET
    AMOUNT                             MUNICIPAL BONDS                                       MOODY'S/S&P        VALUE
  ----------                           ---------------                                       ------------    -------------
<S>           <C>                                                                             <C>             <C>
  $3,000,000  California Department of Water Resources Water System Rev.
                  (Central Valley Project), 6.10% due 12/1/2029...........................       Aaa/AA       $3,479,790
   2,000,000  California Educational Facilities Authority Rev. (Stanford University),
                  6 3/4% due 1/1/2013.....................................................       Aaa/AAA       2,056,420
   1,650,000  California Educational Facilities Authority Rev. (University of Southern
                  California Project), 5.80% due 10/1/2015................................       Aa3/AA        1,770,780
   3,440,000  California Educational Facilities Authority Rev. (Pomona College),
                  6% due 2/15/2017........................................................       Aaa/AA+       3,712,930
</TABLE>

                                       9
<PAGE>

Portfolios Of Investments
September 30, 1998

California Quality Series (continued)


<TABLE>
<CAPTION>
     FACE                                                                                      RATINGS+        MARKET
    AMOUNT                             MUNICIPAL BONDS                                       MOODY'S/S&P        VALUE
  ----------                           ---------------                                       ------------    -------------
<S>           <C>                                                                             <C>             <C>
  $4,500,000  California Educational Facilities Authority Rev. (California Institute
                  of Technology), 6% due 1/1/2021........................................      Aaa/AAA        $4,685,175
   2,000,000  California Educational Facilities Authority Rev. (Stanford University),
                  5.35% due 6/1/2027.....................................................      Aaa/AAA         2,081,020
   1,550,000  California Educational Facilities Authority Rev. (University of Southern
                  California Project), 5 1/8% due 10/1/2028..............................       Aa3/AA         1,566,244
   3,000,000  California Health Facilities Financing Authority Rev.  (Kaiser Permanente),
                  6 1/2% due 12/1/2020...................................................       A3/A           3,205,770
   2,000,000  California Health Facilities Financing Authority Rev. (Stanford Health Care),
                  5% due 11/15/2028......................................................      Aaa/AAA         2,001,680
       5,000  California Housing Finance Agency (Housing Revenue Insured Bonds),
                  8 3/4% due 8/1/2010....................................................      Aaa/AAA             5,193
     425,000  California Housing Finance Agency (Housing Revenue Insured Bonds),
                  8 5/8% due 8/1/2015....................................................      Aaa/AAA           447,461
   2,775,000  California Housing Finance Agency Home Mortgage Rev.,
                  6 3/4% due 2/1/2025*...................................................      Aa2/AA-         2,982,015
   4,000,000  California Pollution Control Financing Authority Rev. (Mobil Oil Corporation
                  Project), 5 1/2% due 12/1/2029*........................................      Aa2/AA          4,164,080
     910,000  California Public Capital Improvements Financing Authority
                  (Pooled Projects),  8.10% due 3/1/2018.................................      Aaa/AAA           931,640
   3,000,000  California Public Works Board Lease Rev. (Correctional Facilities
                  Improvements), 5 3/4% due 9/1/2021.....................................        A/A           3,192,810
   3,000,000  California State GOs, 5% due 10/1/2023.....................................       A1/A+          3,010,080
   2,500,000  California Statewide Communities Development Authority Certificates of
                  Participation (Citrus Valley Health Partners, Inc.), 5 1/8% due 4/1/2023     Aaa/AAA         2,538,025
   3,000,000  California Statewide Communities Development Authority Certificates of
                  Participation (The Trustees of the J. Paul Getty Trust), 5% due 10/1/2023    Aaa/AAA         3,009,810
   4,500,000  Contra Costa, CA Water District Rev., 5% due 10/1/2024.....................      Aaa/AAA         4,523,580
   3,500,000  East Bay, CA Municipal Utility District Water System Rev., 5% due 6/1/2026       Aaa/AAA         3,521,105
   2,500,000  Eastern Municipal Water District Riverside County, CA Water and Sewer Rev.,
                  6 3/4% due 7/1/2012....................................................      Aaa/AAA         3,127,750
   3,000,000  Fresno, CA Sewer System Rev., 5 1/4% due 9/1/2019..........................      Aaa/AAA         3,222,270
   2,000,000  Marin, CA Municipal Water District Water Rev., 5.65% due 7/1/2023..........       A1/AA          2,103,960
   1,000,000  Metropolitan Water District of Southern California Waterworks GOs,
                  5 3/4% due 3/1/2014....................................................      Aaa/AAA         1,020,710
   2,000,000  Metropolitan Water District of Southern California Waterworks GOs,
                  4 3/4% due 3/1/2037....................................................      Aaa/AAA         1,948,240
</TABLE>

                                       10
<PAGE>

Portfolios Of Investments
September 30, 1998

California Quality Series (continued)

<TABLE>
<CAPTION>
     FACE                                                                                      RATINGS+        MARKET
    AMOUNT                             MUNICIPAL BONDS                                       MOODY'S/S&P        VALUE
  ----------                           ---------------                                       ------------    -------------
<S>           <C>                                                                             <C>             <C>
  $3,500,000  Northern California Power Agency Public Power Rev. (Combustion
                  Turbine Project A-1), 6% due 8/15/2010.................................    Aaa/AAA          $3,575,425
   4,500,000  Orange County, CA Local Transportation Authority (Measure M Sales
                  Tax Rev.), 6% due 2/15/2009............................................    Aaa/AAA           5,208,165
   2,500,000  Rancho, CA Water District Financing Authority Rev., 5.90% due 11/1/2015....    Aaa/AAA           2,782,250
   4,000,000  Regents of the University of California Rev. (Multiple Purpose Projects),
                  5 3/8% due 9/1/2024....................................................    Aaa/AAA           4,203,240
   4,250,000  San Francisco Bay Area Rapid Transit District, CA (Sales Tax Rev.),
                  5% due 7/1/2028........................................................    Aaa/AAA           4,279,750
   3,000,000  San Francisco, CA City and County Airports Commission Rev.
                  (International Airport), 6.60% due 5/1/2024*...........................    Aaa/AAA           3,375,420
                                                                                                              -----------
TOTAL MUNICIPAL BONDS (Cost $81,151,221)-- 97.7%.........................................                     87,732,788
VARIABLE RATE DEMAND NOTES (Cost $1,000,000)-- 1.1%......................................                      1,000,000
OTHER ASSETS LESS LIABILITIES-- 1.2%.....................................................                      1,091,154
 
                                                                                                             -----------
NET ASSETS--100.0%.......................................................................                    $89,823,942
                                                                                                             ===========
</TABLE>

FLORIDA SERIES

<TABLE>
<CAPTION>
     FACE                                                                                      RATINGS+        MARKET
    AMOUNT                             MUNICIPAL BONDS                                       MOODY'S/S&P        VALUE
  ----------                           ---------------                                       ------------    -------------
<S>           <C>                                                                             <C>             <C>
  $1,000,000  Broward County, FL Water & Sewer Utility Rev., 5% due 10/1/2018.............    Aaa/AAA           $1,003,510
   1,000,000  Cape Canaveral, FL Hospital District Rev., 5 1/4% due 1/1/2028..............     NR/BBB              998,430
   2,000,000  Collier County, FL Water & Sewer Rev., 5 1/4% due 7/1/2021..................    Aaa/AAA            2,044,280
   1,000,000  Dade County, FL Aviation Rev., 6 1/8% due 10/1/2020*........................    Aaa/AAA            1,101,630
   2,000,000  Dade County, FL Public Improvement GOs, 5 3/4% due 10/1/2016................    Aaa/AAA            2,184,680
   2,000,000  Dade County, FL Water & Sewer System Rev., 5 3/4% due 10/1/2022.............    Aaa/AAA            2,182,080
     945,000  Florida Housing Finance Agency Rev. (General Mortgage),
                  6.35% due 6/1/2014......................................................     NR/AAA            1,012,180
     705,000  Florida Housing Finance Agency Rev. (Single Family Mortgage),
                  6.55% due 7/1/2014*.....................................................    Aaa/AAA              760,300
   1,925,000  Florida Housing Finance Agency Rev. (Homeowner Mortgage),
                  6.20% due 7/1/2027*.....................................................     Aa3/AA            2,053,128
   2,500,000  Florida Ports Financing Commission Rev. (State Transportation Trust Fund),
                  5 3/4% due 6/1/2027*....................................................    Aaa/AAA            2,584,975
   2,000,000  Florida State Department of Transportation GOs (Right of Way),
                  5.80% due 7/1/2021......................................................    Aa2/AA+            2,165,820
   2,500,000  Florida State Turnpike Authority Rev., 5 5/8% due 7/1/2025..................    Aaa/AAA            2,661,975
   2,000,000  Greater Orlando Aviation Authority, FL Airport Facilities Rev.,
                  5 3/4% due 10/1/2023*...................................................    Aaa/AAA            2,041,920
</TABLE>
- -----------------
+ Ratings have not been audited by Deloitte & Touche LLP.
* Interest income earned from this security is subject to the federal
  alternative minimum tax.

See Notes to Financial Statements.
                                       11
<PAGE>

Portfolios Of Investments
September 30, 1998

Florida Series (continued)

<TABLE>
<CAPTION>
     FACE                                                                                      RATINGS+        MARKET
    AMOUNT                             MUNICIPAL BONDS                                       MOODY'S/S&P        VALUE
  ----------                           ---------------                                       ------------    -------------
<S>           <C>                                                                             <C>             <C>
  $2,500,000  Hillsborough County, FL Aviation Authority Rev. (Tampa International
                  Airport), 5 3/8% due 10/1/2023*...........................................  Aaa/AAA          $2,556,300
   1,500,000  Jacksonville Electric Authority, FL Rev. (St. John's River Power Park System),
                  5 3/8% due 10/1/2016......................................................   Aa2/AA           1,578,885
   2,000,000  Jacksonville Electric Authority, FL Rev. (Water & Sewer System),
                  5 5/8% due 10/1/2037......................................................   Aa3/AA-          2,093,820
   2,000,000  Jacksonville, FL Sewage & Solid Waste Disposal Facilities Rev.
                  (Anheuser-Busch Project), 5 7/8% due 2/1/2036*............................    A1/A+           2,161,040
   2,000,000  Jacksonville Health Facilities Authority, FL Hospital Rev. (Charity Obligated
                  Group--Baptist/St. Vincent's Health System Inc.), 5 1/4% due 8/15/2027....   Aa2/AA+          2,041,440
   1,000,000  Kissimmee Utility Authority, FL Electric System Improvement Rev.,
                  5 1/4% due 10/1/2018......................................................   Aaa/AAA          1,022,910
   1,000,000  Lee County, FL Transportation Facilities Rev., 6% due 10/1/2015...............   Aaa/AAA          1,110,280
   1,000,000  Osceola County, FL Transportation Rev. (Osceola Parkway Project),
                  6.10% due 4/1/2017........................................................   Aaa/AAA          1,085,070
   1,200,000  Palm Beach County, FL Criminal Justice Facilities Rev., 7 1/4% due 6/1/2011...   Aaa/AAA          1,293,840
   2,000,000  Polk County, FL Industrial Development Authority Solid Waste Disposal
                  Facilities Rev. (Tampa Electric Company Project), 5.85% due 12/1/2030*....    Aa2/AA          2,173,220
   2,000,000  Reedy Creek Improvement District, FL Utilities Rev., 5 1/8% due 10/1/2019.....   Aaa/AAA          2,027,340
   1,250,000  Volusia County, FL Educational Facilities Authority Rev. (Embry-Riddle
                  Aeronautical University Project), 6 5/8% due 10/15/2022...................    NR/AAA          1,382,213
                                                                                                              -----------
TOTAL MUNICIPAL BONDS (Cost $40,110,884)-- 97.6%............................................                   43,321,266
VARIABLE RATE DEMAND NOTES (Cost $200,000)--0.5%............................................                      200,000
OTHER ASSETS LESS LIABILITIES--1.9%.........................................................                      882,398
                                                                                                              -----------
NET ASSETS-- 100.0%.........................................................................                  $44,403,664
                                                                                                              -----------
 </TABLE>

NORTH CAROLINA SERIES

<TABLE>
<CAPTION>
     FACE                                                                                      RATINGS+        MARKET
    AMOUNT                             MUNICIPAL BONDS                                       MOODY'S/S&P        VALUE
  ----------                           ---------------                                       ------------    -------------
<S>           <C>                                                                             <C>             <C>
  $1,250,000  Appalachian State University, NC Housing & Student 1/2er System Rev.,
                  5 5/8% due 7/15/2015.....................................................   Aaa/AAA         $1,329,563
   1,250,000  Asheville, NC Water System Rev., 5.70% due 8/1/2025..........................   Aaa/AAA          1,364,987
   2,000,000  Charlotte-Mecklenberg Hospital Authority, NC Health Care System Rev.,
                  5 3/4% due 1/15/2021.....................................................    Aa3/AA          2,164,480
   1,000,000  Charlotte, NC Certificates of Participation (Charlotte-Mecklenburg Law
                  Enforcement 1/2er Project), 5 3/8% due 6/1/2013..........................    Aa1/AA          1,048,690
   2,000,000  Charlotte, NC Water & Sewer GOs, 5.90% due 2/1/2017..........................   Aaa/AAA          2,228,580
   1,000,000  Concord, NC Utilities System Rev., 5% due 12/1/2022..........................   Aaa/AAA          1,003,550

</TABLE>
- -----------------
+ Ratings have not been audited by Deloitte & Touche LLP.
* Interest income earned from this security is subject to the federal
  alternative minimum tax.
See Notes to Financial Statements.
                                       12
<PAGE>

Portfolios Of Investments
September 30, 1998

North Carolina Series (continued)

<TABLE>
<CAPTION>
     FACE                                                                                      RATINGS+        MARKET
    AMOUNT                             MUNICIPAL BONDS                                       MOODY'S/S&P        VALUE
  ----------                           ---------------                                       ------------    -------------
<S>           <C>                                                                             <C>             <C>
  $1,500,000  Fayetteville, NC Public Works Commission Rev., 5 1/8% due 3/1/2024..........    Aaa/AAA          $ 1,518,675
   2,500,000  Martin County Industrial Facilities and Pollution Control Financing
                  Authority, NC Solid Waste Disposal Rev. (Weyerhaeuser Company
                  Project), 6% due 11/1/2025*.............................................     A2/A              2,665,600
     500,000  North Carolina Educational Facilities Financing Authority Rev. (Duke
                  University Project), 6 3/4% due 10/1/2021...............................    Aa1/AA+              547,270
     600,000  North Carolina Housing Finance Agency Rev. (Multi-Family),
                  5.80% due 7/1/2014......................................................    Aa2/AA               625,452
   1,455,000  North Carolina Housing Finance Agency Rev. (Single Family),
                  6 1/2% due 3/1/2018.....................................................    Aa2/AA             1,568,883
     250,000  North Carolina Housing Finance Agency Rev. (Multi-Family),
                  5.90% due 7/1/2026......................................................    Aa2/AA               260,163
   1,000,000  North Carolina Medical Care Commission Hospital Rev. (Memorial
                  Mission Hospital Project), 6% due 10/1/2022.............................   Aaa/AAA             1,086,100
   2,000,000  North Carolina Medical Care Commission Hospital Rev. (Presbyterian
                  Health Services Corp. Project), 6% due 10/1/2024........................    Aa3/AA             2,199,120
   1,500,000  North Carolina Medical Care Commission Hospital Rev. (First Health
                  of the Carolinas Project), 5% due 10/1/2028.............................    Aa3/AA-            1,486,185
   1,500,000  North Carolina Medical Care Commission Hospital Rev. (Gaston Health
                  Care), 5% due 2/15/2029.................................................     A1/A+             1,467,795
   1,500,000  North Carolina Municipal Power Agency No. 1 Catawba Electric Rev.,
                  5 3/4% due 1/1/2015.....................................................   Aaa/AAA             1,566,420
   3,000,000  North Carolina Municipal Power Agency No. 1 Catawba Electric Rev.,
                  5% due 1/1/2020.........................................................   Aaa/AAA             3,062,250
   1,000,000  Orange, NC Water & Sewer Authority Rev., 5.20% due 7/1/2016.................    Aa2/AA             1,025,080
   1,500,000  University of North Carolina Charlotte Rev. (Student Activity Center),
                  5 1/2% due 6/1/2021.....................................................   Aaa/AAA             1,590,015
     500,000  University of North Carolina Hospitals at Chapel Hill Rev.,
                  6 3/8% due 2/15/2017....................................................   Aa3/AA                547,365
   1,000,000  University of North Carolina Hospitals at Chapel Hill Rev.,
                  5 1/4% due 2/15/2026....................................................    Aa3/AA             1,021,470
   1,550,000  Wake County Industrial Facilities & Pollution Control Financing Authority,
                  NC (Carolina Power & Light), 6.90% due 4/1/2009.........................     A2/A              1,641,558
                                                                                                               -----------
TOTAL MUNICIPAL BONDS (Cost $30,569,108)-- 97.6%..........................................                      33,019,251
VARIABLE RATE DEMAND NOTES (Cost $200,000)--0.6%..........................................                         200,000
OTHER ASSETS LESS LIABILITIES--1.8%.......................................................                         594,889
                                                                                                               -----------
NET ASSETS--100.0%........................................................................                     $33,814,140
                                                                                                               ===========
</TABLE>
- -----------------
+ Ratings have not been audited by Deloitte & Touche LLP.
* Interest income earned from this security is subject to the federal
  alternative minimum tax.
See Notes to Financial Statements.

                                       13
<PAGE>

Statements of Assets and Liabilities
September 30, 1998
<TABLE>
<CAPTION>
                                                  CALIFORNIA          CALIFORNIA                               NORTH
                                                  HIGH-YIELD            QUALITY              FLORIDA          CAROLINA
                                                    SERIES              SERIES               SERIES            SERIES
                                                --------------      --------------       --------------    --------------
<S>                                              <C>                  <C>                  <C>                <C>
ASSETS:
Investments, at value (see Portfolios of
  Investments):
   Long-term holdings.......................     $ 62,720,238         $87,732,788          $43,321,266        $33,019,251
   Short-term holdings......................        1,300,000           1,000,000              200,000            200,000
                                               --------------       -------------      ---------------     --------------
                                                   64,020,238          88,732,788           43,521,266         33,219,251
Cash........................................           78,933             147,638              108,980            124,263
Interest receivable.........................          948,192           1,385,934              880,740            527,791
Receivable for Shares of Beneficial
   Interest sold...........................            14,911               8,000                   --             57,677
Expenses prepaid to shareholder
   service agent...........................             7,859              10,610                5,502              4,716
Receivable for securities sold.............                --                  --               56,164                 --
Other......................................               854               1,195                  600                455
                                               --------------       -------------     ---------------      --------------
Total Assets...............................        65,070,987          90,286,165           44,573,252         33,934,153
                                               --------------       -------------      ---------------     --------------

LIABILITIES:
Dividends payable..........................           106,692             145,863               67,338             50,927
Payable for Shares of Beneficial Interest
   repurchased.............................            95,451             201,668               20,751              3,929
Accrued expenses, taxes, and other.........           101,609             114,692               81,499             65,157
                                               --------------       -------------      ---------------     --------------
Total Liabilities..........................           303,752             462,223              169,588            120,013
                                               --------------       -------------      ---------------     --------------
Net Assets.................................       $64,767,235         $89,823,942          $44,403,664        $33,814,140
                                               ==============       =============      ===============     ==============

COMPOSITION OF NET ASSETS:
Shares of Beneficial Interest, at par:
   Class A.................................            $8,590             $12,142               $5,265             $3,898
   Class D.................................               940                 320                  240                176
Additional paid-in capital.................        59,851,434          80,749,934           40,905,706         30,894,019
Undistributed net realized gain............           161,750           2,479,979              282,071            465,904
Net unrealized appreciation
   of investments..........................         4,744,521           6,581,567            3,210,382          2,450,143
                                              ---------------      ---------------     ---------------     --------------
Net Assets.................................       $64,767,235         $89,823,942          $44,403,664        $33,814,140
                                               ==============       ==============     ===============     ==============

NET ASSETS:
   Class A.................................       $58,373,945         $87,522,215          $42,464,187        $32,357,996
   Class D.................................        $6,393,290          $2,301,727           $1,939,477         $1,456,144

SHARES OF BENEFICIAL INTEREST OUTSTANDING
(Unlimited shares
authorized;
   $.001 par value):
   Class A.................................         8,590,229          12,142,358            5,264,850          3,898,437
   Class D.................................           939,805             320,032              239,980            175,528

NET ASSET VALUE PER SHARE:
Class A....................................             $6.80               $7.21                $8.07              $8.30
Class D....................................             $6.80               $7.19                $8.08              $8.30

</TABLE>
See Notes to Financial Statements.

                                       14

<PAGE>

Statements of Operations
For the Year Ended September 30, 1998

<TABLE>
<CAPTION>
                                                   CALIFORNIA           CALIFORNIA                          NORTH
                                                   HIGH-YIELD             QUALITY           FLORIDA         CAROLINA
                                                     SERIES               SERIES            SERIES          SERIES
                                                 -------------       -------------       -------------   -------------
INVESTMENT INCOME:
<S>                                              <C>                 <C>                 <C>                  <C>
Interest .....................................     $3,410,721           $4,889,687          $2,413,006      $1,840,082
                                                 -------------       -------------       -------------   -------------
EXPENSES:
Management fees...............................        303,287              442,776             220,971         168,365
Distribution and service fees.................        101,325               98,913             117,664          88,259
Shareholder account services..................         73,376               99,589              55,717          45,469
Auditing and legal fees.......................         23,133               23,133              26,192          26,546
Shareholder reports and communications........         12,357               14,417              10,062          11,568
Custody and related services..................         11,580                7,074              10,386           7,084
Registration..................................          8,335                6,038               9,700          10,550
Trustees' fees and expenses...................          3,695                4,267               4,591           4,711
Miscellaneous.................................          4,400                5,356               3,074           2,718
                                                 ------------        -------------       -------------   -------------
Total Expenses................................        541,488              701,563             458,357         365,270
                                                 ------------        -------------       -------------   -------------
Net Investment Income.........................      2,869,233            4,188,124           1,954,649       1,474,812
                                                 ------------        -------------       -------------   -------------

NET REALIZED AND UNREALIZED
   GAIN ON INVESTMENTS:

Net realized gain on investments..............        315,617            2,703,169             283,504         471,836
Net change in unrealized appreciation
  of investments..............................      1,697,381              429,796           1,624,389         828,922
                                                 ------------        -------------       -------------   -------------
Net Gain on Investments ......................      2,012,998            3,132,965           1,907,893       1,300,758
                                                 ------------        -------------       -------------   -------------
Increase in Net Assets from Operations........     $4,882,231           $7,321,089          $3,862,542      $2,775,570
                                                 ============        =============       =============   =============
</TABLE>

- ------------------
See Notes to Financial Statements.

                                       15
<PAGE>

Statements of Changes in Net Assets

<TABLE>
<CAPTION>
                                                   CALIFORNIA HIGH-YIELD SERIES               CALIFORNIA QUALITY SERIES
                                                ------------------------------------------------------------------------------
                                                     YEAR ENDED SEPTEMBER 30,                 YEAR ENDED SEPTEMBER 30,
                                               ---------------------------------------------------------------------------
                                                      1998               1997                1998                 1997
                                               -------------        --------------      --------------      --------------
<S>                                             <C>                   <C>                 <C>                  <C>
OPERATIONS:
Net investment income.................          $  2,869,233          $  2,784,733        $  4,188,124        $  4,596,455
Net realized gain on investments......               315,617               211,592           2,703,169             427,389
Net change in unrealized appreciation
   of investments.....................             1,697,381             1,476,067             429,796           2,834,368
                                               -------------        --------------      --------------      --------------
Increase in Net Assets from Operations             4,882,231             4,472,392           7,321,089           7,858,212
                                               -------------        --------------      --------------      --------------

DISTRIBUTIONS TO SHAREHOLDERS:
Net investment income:
   Class A............................            (2,672,172)           (2,682,769)         (4,112,546)        (4,533,073)
   Class D............................              (197,061)             (101,964)            (75,578)           (63,382)
Net realized gain on investments:
   Class A............................              (255,159)             (722,261)           (410,719)           (27,957)
   Class D............................               (16,987)              (27,209)             (9,630)              (454)
                                               --------------       --------------      --------------     --------------
Decrease in Net Assets
   from Distributions.................            (3,141,379)           (3,534,203)         (4,608,473)        (4,624,866)
                                               --------------       --------------      --------------     --------------

TRANSACTIONS IN SHARES OF
   BENEFICIAL INTEREST:
Net proceeds from sale of shares:
   Class A............................             8,495,720             7,351,517           2,910,248          1,481,687
   Class D............................             3,342,099             1,513,626             510,845            575,550
Shares issued in payment of dividends:
   Class A............................             1,407,211             1,412,142           2,074,707          2,257,452
   Class D............................               148,218                70,066              39,918             33,256
Exchanged from associated Funds:
   Class A............................             2,763,236             1,772,009           9,378,739         19,333,888
   Class D............................               549,807               502,224           2,156,556          5,312,748
Shares issued in payment of gain distributions:
   Class A............................               174,948               483,204             249,515             16,799
   Class D............................                13,631                22,161               5,556                228
                                               -------------        --------------      --------------     --------------
Total.................................            16,894,870            13,126,949          17,326,084         29,011,608
                                               -------------        --------------      --------------     --------------
Cost of shares repurchased:
   Class A............................            (8,007,292)           (7,355,541)         (9,140,974)       (13,851,584)
   Class D............................              (528,543)             (640,001)           (568,085)          (280,678)
Exchanged into associated Funds:
   Class A............................              (937,063)           (1,923,514)         (7,593,529)       (20,972,562)
   Class D............................              (598,369)             (126,577)         (1,581,236)        (5,676,629)
                                               --------------       --------------      --------------     --------------
Total.................................           (10,071,267)          (10,045,633)        (18,883,824)       (40,781,453)
                                               --------------       --------------      --------------     --------------
Increase (Decrease) in Net Assets
   from Transactions in Shares
   of Beneficial Interest.............             6,823,603             3,081,316          (1,557,740)       (11,769,845)
                                                ------------        --------------      --------------     --------------
Increase (Decrease) in Net Assets.....             8,564,455             4,019,505           1,154,876         (8,536,499)

NET ASSETS:
Beginning of year.....................            56,202,780            52,183,275          88,669,066         97,205,565
                                               -------------        --------------      --------------     --------------
End of Year...........................           $64,767,235           $56,202,780         $89,823,942        $88,669,066
                                               =============        ==============      ==============     ==============
</TABLE>
- ------------------
See Notes to Financial Statements.

                                       16
<PAGE>

Statements of Changes in Net Assets

<TABLE>
<CAPTION>
                                                          FLORIDA SERIES                         NORTH CAROLINA SERIES
                                               -----------------------------------------  -----------------------------------
                                                     YEAR ENDED SEPTEMBER 30,                  YEAR ENDED SEPTEMBER 30,
                                               ---------------------------------------  -------------------------------------
                                                    1998                  1997                1998                  1997
                                               -------------        --------------      --------------         --------------
<S>                                              <C>                   <C>                 <C>                  <C>
OPERATIONS:
Net investment income.......................     $ 1,954,649           $ 2,131,967         $ 1,474,812             $1,638,605
Net realized gain on investments............         283,504               402,363             471,836                264,968
Net change in unrealized appreciation
  of investments............................       1,624,389               899,645             828,922                797,213
                                               -------------        --------------      --------------         --------------
Increase in Net Assets from Operations......       3,862,542             3,433,975           2,775,570              2,700,786
                                               -------------        --------------      --------------         --------------

DISTRIBUTIONS TO SHAREHOLDERS:
Net investment income:
   Class A..................................      (1,887,251)           (2,069,071)         (1,428,764)            (1,591,157)
   Class D..................................         (67,398)              (62,896)            (46,048)               (47,448)
Net realized gain on investments:
   Class A..................................        (385,124)             (611,829)           (259,010)              (145,565)
   Class D..................................         (16,296)              (20,485)             (9,526)                (4,714)
                                               -------------        --------------      --------------         --------------
Decrease in Net Assets
   from Distributions.......................      (2,356,069)           (2,764,281)         (1,743,348)            (1,788,884)
                                               -------------        --------------      --------------         --------------
TRANSACTIONS IN SHARES OF
   BENEFICIAL INTEREST:
Net proceeds from sale of shares:
   Class A..................................       1,820,657             2,176,497           1,639,241              1,480,472
   Class D..................................         549,732               211,049             321,482                124,216
Shares issued in payment of dividends:
   Class A..................................         735,335               808,742             749,183                832,006
   Class D..................................          43,291                43,942              32,807                 35,063
Exchanged from associated Funds:
   Class A..................................       1,868,336             1,901,127             551,292                622,587
   Class D..................................         247,755               437,446             100,077                     --
Shares issued in payment of gain distributions:
   Class A..................................         224,788               344,983             192,301                106,938
   Class D..................................          12,044                15,286               8,729                  4,313
                                               -------------        --------------      --------------         --------------
Total.......................................       5,501,938             5,939,072           3,595,112              3,205,595
                                               -------------        --------------      --------------         --------------
Cost of shares repurchased:
   Class A..................................      (3,801,719)           (7,587,878)         (3,903,375)            (6,362,439)
   Class D..................................        (441,648)             (295,456)           (260,357)              (208,812)
Exchanged into associated Funds:
   Class A..................................      (1,850,538)           (1,470,687)           (545,626)              (808,253)
   Class D..................................        (213,070)              (29,736)             (4,500)                (3,500)
                                               -------------        --------------      --------------         --------------
Total.......................................      (6,306,975)           (9,383,757)         (4,713,858)            (7,383,004)
                                               -------------        --------------      --------------         --------------
Decrease in Net Assets
  from Transactions in Shares
  of Beneficial Interest....................        (805,037)           (3,444,685)         (1,118,746)           (4,177,409)
                                               -------------        --------------      --------------        --------------
Increase (Decrease) in Net Assets...........         701,436            (2,774,991)            (86,524)           (3,265,507)

NET ASSETS:
Beginning of year...........................      43,702,228            46,477,219          33,900,664            37,166,171
                                               -------------        --------------      --------------        --------------
End of Year.................................     $44,403,664           $43,702,228         $33,814,140           $33,900,664
                                               =============        ==============      ==============        ==============
</TABLE>
- ------------------
See Notes to Financial Statements.

                                       17
<PAGE>

Notes to Financial Statements

1. Multiple Classes of Shares -- Seligman Municipal Series Trust (the "Trust")
consists of four separate series: the "California High-Yield Series," the
"California Quality Series," the "Florida Series," and the "North Carolina
Series." Each Series of the Trust offers two classes of shares. Class A shares
are sold with an initial sales charge of up to 4.75% and a continuing service
fee of up to 0.25% on an annual basis. Class A shares purchased in an amount of
$1,000,000 or more are sold without an initial sales charge but are subject to a
contingent deferred sales charge ("CDSC") of 1% on redemptions within 18
months of purchase. Class D shares are sold without an initial sales charge but
are subject to a distribution fee of up to 0.75% and a service fee of up to
0.25% on an annual basis, and a CDSC of 1% imposed on redemptions made within
one year of purchase. The two classes of shares for each Series represent
interests in the same portfolio of investments, have the same rights and are
generally identical in all respects except that each class bears its separate
distribution and certain other class expenses, and has exclusive voting rights
with respect to any matter on which a separate vote of any class is required.

2. Significant Accounting Policies -- The financial statements have been
prepared in conformity with generally accepted accounting principles which
require management to make certain estimates and assumptions at the date of the
financial statements. The following summarizes the significant accounting
policies of the Trust:

a.  Security Valuation -- All municipal securities and other short-term holdings
    maturing in more than 60 days are valued based upon quotations provided by
    an independent pricing service or, in their absence, at fair value
    determined in accordance with procedures approved by the Trustees.
    Short-term holdings maturing in 60 days or less are generally valued at
    amortized cost.

b.  Federal Taxes -- There is no provision for federal income tax. Each Series
    has elected to be taxed as a regulated investment company and intends to
    distribute substantially all taxable net income and net gain realized.

c.  Security Transactions and Related Investment Income -- Investment
    transactions are recorded on trade dates. Identified cost of investments
    sold is used for both financial statement and federal income tax purposes.
    Interest income is recorded on the accrual basis. The Trust amortizes
    original issue discounts and premiums paid on purchases of portfolio
    securities. Discounts other than original issue discounts are not amortized.

d.  Multiple Class Allocations -- All income, expenses (other than
    class-specific expenses), and realized and unrealized gains or losses are
    allocated daily to each class of shares based upon the relative value of the
    shares of each class. Class-specific expenses, which include distribution
    and service fees and any other items that are specifically attributable to
    a particular class, are charged directly to such class. For the year ended
    September 30, 1998, distribution and service fees were the only
    class-specific expenses.

e.   Distributions to Shareholders -- Dividends are declared daily and paid
     monthly. Other distributions paid by the Trust are recorded on the
     ex-dividend date. The treatment for financial statement purposes of
     distributions made to shareholders during the year from net investment
     income or net realized gains may differ from their ultimate treatment for
     federal income tax purposes. These differences are caused primarily by
     differences in the timing of the recognition of certain components of
     income, expense, or realized capital gain for federal income tax purposes.
     Where such differences are permanent in nature, they are reclassified in
     the components of net assets based on their ultimate characterization for
     federal income tax purposes. Any such reclassifications will have no effect
     on net assets, results of operations, or net asset value per share of any
     series of the Trust.

3. Purchases and Sales of Securities -- Purchases and sales of portfolio
securities, excluding short-term investments, for the year ended September 30,
1998, were as follows:

   SERIES                  PURCHASES             SALES
- ----------               ------------          -----------
California High-Yield    $13,851,880           $ 6,254,740
California Quality        26,703,196            29,319,797
Florida                    2,913,810             4,572,460
North Carolina             6,793,035             8,043,512

At September 30, 1998, the cost of investments for federal income tax purposes
was substantially the same as the cost for financial reporting purposes, and the
tax basis gross unrealized appreciation of portfolio securities was as follows:

                                   TOTAL
                                UNREALIZED
  SERIES                       APPRECIATION
- ----------                     ------------
California High-Yield           $4,744,521
California Quality               6,581,567
Florida                          3,210,382
North Carolina                   2,450,143

4. Management Fee, Distribution Services, and Other Transactions -- J. & W.
Seligman & Co. Incorporated (the "Manager") manages the affairs of the Trust and
provides the necessary personnel and facilities. Compensation of all officers of
the Trust, all trustees of the Trust who are employees or consultants of the
Manager, and all personnel of the Trust and the Manager is paid by the Manager.
The Manager's fee is calculated daily and payable monthly, equal to 0.50% per
annum of each Series' average daily net assets.

                                       18
<PAGE>

Notes to Financial Statements

    Seligman Advisors, Inc. (the "Distributor") (formerly Seligman Financial
Services, Inc.), agent for the distribution of each Series' shares and an
affiliate of the Manager, received the following concessions after commissions
were paid to dealers for sales of Class A shares:

                          DISTRIBUTOR            DEALER
   SERIES                 CONCESSIONS          COMMISSIONS
  ---------               ------------         ------------
California High-Yield      $17,349              $120,571
California Quality          11,984                87,663
Florida                      8,741                60,667
North Carolina               6,114                43,938

    The Trust has an Administration, Shareholder Services and Distribution Plan
(the "Plan") with respect to distribution of its shares. Under the Plan, with
respect to Class A shares, service organizations can enter into agreements with
the Distributor and receive continuing fees of up to 0.25% on an annual basis,
payable quarterly, of the average daily net assets of the Class A shares
attributable to the particular service organizations for providing personal
services and/or the maintenance of shareholder accounts. The Distributor charges
such fees to the Trust pursuant to the Plan. For the year ended September 30,
1998, for the California High-Yield, California Quality, Florida, and North
Carolina Series, fees incurred under the Plan aggregated $50,741, $79,348,
$99,371, and $75,601, respectively, or 0.09%, 0.09%, 0.23%, and 0.23%,
respectively, per annum of average daily net assets.

    Under the Plan, with respect to Class D shares, service organizations can
enter into agreements with the Distributor and receive continuing fees for
providing personal services and/or the maintenance of shareholder accounts of up
to 0.25% on an annual basis of the average daily net assets of the Class D
shares for which the organizations are responsible, and fees for providing other
distribution assistance of up to 0.75% on an annual basis of such average daily
net assets. Such fees are paid monthly by the Trust to the Distributor pursuant
to the Plan. For the year ended September 30, 1998, fees incurred under the Plan
amounted to $50,584, $19,565, $18,293, and $12,658, respectively, or 1% per
annum of the average daily net assets of Class D shares of the California
High-Yield, California Quality, Florida, and North Carolina Series,
respectively.

    The Distributor is entitled to retain any CDSC imposed on redemptions of
Class D shares occurring within one year of purchase and on certain redemptions
of Class A shares occurring within 18 months of purchase. For the year ended
September 30, 1998, such charges amounted to $6,508 for the California
High-Yield Series, $939 for the California Quality Series, $277 for the Florida
Series, and $79 for the North Carolina Series.

    Seligman Services, Inc., an affiliate of the Manager, is eligible to receive
commissions from certain sales of Trust shares, as well as distribution and
service fees pursuant to the Plan. For the year ended September 30, 1998,
Seligman Services, Inc. received commissions from the sale of shares of each
Series, and distribution and service fees, pursuant to the Plan, as follows:

                                           DISTRIBUTION AND
   SERIES                COMMISSIONS         SERVICE FEES
 ----------             ------------         ------------
California High-Yield     $1,887                $1,597
California Quality         1,346                 2,602
Florida                    2,125                 4,566
North Carolina               975                 2,401

    Seligman Data Corp., which is owned by certain associated investment
companies, charged at cost for shareholder account services the following
amounts:

  SERIES
 ---------
California High-Yield          $73,376
California Quality              99,589
Florida                         55,717
North Carolina                  45,469

    Certain officers and trustees of the Trust are officers or directors of the
Manager, the Distributor, Seligman Services, Inc., and/or Seligman Data Corp.

    The Trust has a compensation agreement under which trustees who receive fees
may elect to defer receiving such fees. Trustees may elect to have their
deferred fees accrue interest or earn a return based on the performance of the
Trust or other funds in the Seligman Group of Investment Companies. Deferred
fees and related accrued earnings are not deductible for federal income tax
purposes until such amounts are paid. The cost of such fees and earnings accrued
thereon is included in trustees' fees and expenses, and the accumulated balances
thereof at September 30, 1998, are included in other liabilities as follows:

SERIES
- ----------
California High-Yield          $24,628
California Quality              24,708
Florida                         12,468
North Carolina                   9,216

5. Committed Line of Credit -- Effective July 1, 1998, the Trust entered into a
joint $800 million committed line of credit that is shared by substantially all
funds in the Seligman Group of Investment Companies. Each Series' borrowings are
limited to 10% of its net assets. Borrowings pursuant to the credit facility are
subject to interest at a rate equal to the overnight federal funds rate plus
0.50% on an overnight basis. Each Series incurs a commitment fee of 0.08% per
annum on its share of the unused portion of the credit facility. The credit
facility may be drawn upon only for temporary purposes and is subject to certain
other customary restrictions. The credit facility commitment expires one year
from the date of the agreement but is renewable with the consent of the
participating banks. To date, the Trust has not borrowed from the credit
facility.

                                       19
<PAGE>

Notes to Financial Statements

6. Transactions in Shares of Beneficial Interest -- Transactions in Shares of
Beneficial Interest were as follows:

<TABLE>
<CAPTION>
                                                              CALIFORNIA HIGH-YIELD                    CALIFORNIA QUALITY
                                                                     SERIES                                  SERIES
                                                         --------------------------              --------------------------
                                                          YEAR ENDED SEPTEMBER 30,                 YEAR ENDED SEPTEMBER 30,
                                                         --------------------------              --------------------------
                                                            1998             1997                  1998             1997
                                                         ----------     -----------              -----------     ----------
<S>                                                       <C>             <C>                  <C>                <C>
Sales of shares:
   Class A.....................................           1,277,052       1,136,556                 412,540        217,315
   Class D.....................................             499,452         232,749                  72,661         83,522
Shares issued in payment of dividends:
   Class A.....................................             211,143         217,868                 294,684        329,886
   Class D.....................................              22,196          10,791                   5,681          4,867
Exchanged from associated Funds:
   Class A.....................................             413,298         272,963                1,335,307     2,835,364
   Class D.....................................              82,354          77,936                  307,189        781,157
Shares issued in payment of gain distributions:
   Class A.....................................              26,588          74,799                   35,850          2,456
   Class D.....................................               2,068           3,425                      799             33
                                                         ----------     -----------              -----------     ----------
Total..........................................           2,534,151       2,027,087                2,464,711      4,254,600
                                                         ----------     -----------              -----------     ----------
Shares repurchased:
   Class A.....................................          (1,201,761)     (1,136,607)              (1,299,234)    (2,029,814)
   Class D.....................................             (79,088)        (98,590)                 (80,796)       (41,403)
Exchanged into associated Funds:
   Class A.....................................            (140,692)       (296,127)              (1,081,747)    (3,068,740)
   Class D.....................................             (89,085)        (19,383)                (225,899)      (832,015)
                                                         ----------     -----------              -----------     ----------
Total..........................................          (1,510,626)     (1,550,707)              (2,687,676)    (5,971,972)
                                                         ----------     -----------              -----------     ----------
Increase (decrease) in shares..................           1,023,525         476,380                 (222,965)    (1,717,372)
                                                         ==========     ===========              ===========     ==========
</TABLE>

<TABLE>
<CAPTION>
                                                                                                 NORTH CAROLINA
                                                                FLORIDA SERIES                       SERIES
                                                         --------------------------        --------------------------
                                                           YEAR ENDED SEPTEMBER 30,         YEAR ENDED SEPTEMBER 30,
                                                         --------------------------        --------------------------
                                                            1998             1997              1998           1997
                                                         ----------     -----------        -----------    -----------
<S>                                                         <C>             <C>                <C>            <C>
Sales of shares:
   Class A.......................................           231,028         284,403            202,159        187,120
   Class D.......................................            69,634          27,585             39,497         15,728
Shares issued in payment of dividends:
   Class A.......................................            93,274         105,889             92,259        105,249
   Class D.......................................             5,481           5,743              4,042          4,436
Exchanged from associated Funds:
   Class A.......................................           237,657         250,599             67,414         78,277
   Class D.......................................            31,343          56,686             12,161             --
Shares issued in payment of gain distributions:
   Class A.......................................            29,005          45,096             24,008         13,554
   Class D.......................................             1,550           1,996              1,091            547
                                                         ----------     -----------        -----------    -----------
Total............................................           698,972         777,997            442,631        404,911
                                                         ----------     -----------        -----------    -----------
Shares repurchased:
   Class A.......................................          (482,133)       (995,384)          (480,689)      (805,592)
   Class D.......................................           (55,774)        (39,429)           (31,930)       (26,320)
Exchanged into associated Funds:
   Class A.......................................          (234,463)       (193,665)           (67,042)      (102,260)
   Class D.......................................           (27,097)         (3,903)              (560)          (445)
                                                         ----------     -----------        -----------    -----------
Total............................................          (799,467)     (1,232,381)          (580,221)      (934,617)
                                                         ----------     -----------        -----------    -----------
Decrease in shares...............................          (100,495)       (454,384)          (137,590)      (529,706)
                                                         ==========     ===========        ===========    ===========
</TABLE>
                                       20
<PAGE>

Financial Highlights

    The Trust's financial highlights are presented below. "Per share operating
performance" data is designed to allow investors to trace the operating perfor-
mance of each Class, on a per share basis, from the be gin ning net asset value
to the ending net asset value, so that investors can understand what effect the
individual items have on their investment, assuming it was held throughout the
period. Generally, per share amounts are derived by converting the actual dollar
amounts incurred for each item, as disclosed in the financial statements, to
their equivalent per share amounts, based on average shares outstanding.

    "Total return based on net asset value" measures each Class's performance
assuming that investors purchased shares at net asset value as of the beginning
of the period, invested dividends and capital gains paid at net asset value, and
then sold their shares at the net asset value on the last day of the period. The
total return computations do not reflect any sales charges investors may incur
in purchasing or selling shares of each Series. Total returns for periods of
less than one year are not annualized.

<TABLE>
<CAPTION>
CALIFORNIA HIGH-YIELD SERIES                                                            CLASS A
                                                         ---------------------------------------------------------------
                                                                              YEAR ENDED SEPTEMBER 30,
                                                         ---------------------------------------------------------------
                                                           1998          1997           1996         1995          1994
                                                         -------       -------        -------      -------       -------
<S>                                                     <C>            <C>            <C>           <C>            <C>
PER SHARE OPERATING PERFORMANCE:
Net Asset Value, Beginning of Year................        $6.61          $6.50          $6.47        $6.30         $6.73
                                                        -------        -------        -------      -------       -------
Net investment income.............................         0.32           0.34           0.36         0.37          0.37
Net realized and unrealized investment gain (loss)         0.22           0.20           0.05         0.17         (0.34)
                                                        -------        -------        -------      -------       -------
Increase from Investment Operations...............         0.54           0.54           0.41         0.54          0.03
Dividends paid or declared........................        (0.32)         (0.34)         (0.36)       (0.37         (0.37)
Distributions from net gain realized..............        (0.03)         (0.09)         (0.02)          --         (0.09)
                                                        -------        -------        -------      -------       -------
Net Increase (Decrease) in Net Asset Value........         0.19           0.11           0.03         0.17         (0.43)
                                                        -------        -------        -------      -------       -------
Net Asset Value, End of Year......................        $6.80          $6.61          $6.50        $6.47         $6.30
                                                        =======        =======        =======      =======       =======
TOTAL RETURN BASED ON NET ASSET VALUE:                     8.45%          8.74%          6.49%        8.85%         0.41%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets....................         0.82%          0.87%          0.84%        0.90%         0.85%
Net investment income to average net assets.......         4.81%          5.26%          5.49%        5.84%         5.74%
Portfolio turnover................................        10.75%         22.42%         34.75%       17.64%         8.36%
Net Assets, End of Year (000s omitted)............      $58,374       $52,883        $50,264       $51,504        $48,007
</TABLE>

<TABLE>
<CAPTION>
                                                                                        CLASS D
                                                         -----------------------------------------------------------------
                                                                       YEAR ENDED SEPTEMBER 30,                    2/1/94*
                                                         ----------------------------------------------------        TO
                                                          1998           1997           1996          1995         9/30/94
                                                         ------        -------        -------      ---------      --------
<S>                                                     <C>            <C>            <C>           <C>           <C>
PER SHARE OPERATING PERFORMANCE:
Net Asset Value, Beginning of Period................      $6.61          $6.51          $6.48          $6.31         $6.67
                                                         ------        -------        -------      ---------      --------
Net investment income...............................       0.26           0.28           0.30           0.31          0.21
Net realized and unrealized investment gain (loss)..       0.22           0.19           0.05           0.17         (0.36)
                                                         ------        -------        -------      ---------      --------
Increase (Decrease) from Investment Operations......       0.48           0.47           0.35           0.48         (0.15)
Dividends paid or declared..........................      (0.26)         (0.28)         (0.30)         (0.31)        (0.21)
Distributions from net gain realized................      (0.03)         (0.09)         (0.02)            --            --
                                                         ------        -------        -------      ---------      --------
Net Increase (Decrease) in Net Asset Value..........       0.19           0.10           0.03           0.17         (0.36)
                                                         ------        -------        -------      ---------      --------
Net Asset Value, End of Period......................      $6.80          $6.61          $6.51          $6.48         $6.31
                                                         ======        =======        =======      =========      ========

TOTAL RETURN BASED ON NET ASSET VALUE:                     7.47%          7.60%          5.53%         7.78%         (2.47)%

RATIOS/SUPPLEMENTAL DATA:

Expenses to average net assets......................       1.73%          1.77%          1.74%         1.91%          1.74%+
Net investment income to average net assets.........       3.90%          4.36%          4.59%         4.84%          4.73%+
Portfolio turnover..................................      10.75%         22.42%         34.75%        17.64%          8.36%++
Net Assets, End of Period (000s omitted)............     $6,393         $3,320         $1,919        $1,277          $ 650
</TABLE>
- ------------------------
See footnotes on page 24.

                                       21
<PAGE>

Financial Highlights

<TABLE>
<CAPTION>
CALIFORNIA QUALITY SERIES                                                               CLASS A
                                                         ---------------------------------------------------------------
                                                                               YEAR ENDED SEPTEMBER 30,
                                                         ---------------------------------------------------------------
                                                           1998          1997           1996        1995           1994
                                                         -------       -------        -------     -------        -------
<S>                                                       <C>            <C>            <C>         <C>            <C>
PER SHARE OPERATING PERFORMANCE:
Net Asset Value, Beginning of Year...............         $6.99          $6.75          $6.65       $6.39          $7.28
                                                        -------        -------        -------     -------        -------
Net investment income............................          0.33           0.34           0.35        0.34           0.35
Net realized and unrealized investment gain (loss)         0.25           0.24           0.11        0.32          (0.73)
                                                        -------        -------        -------     -------        -------

Increase (Decrease) from Investment Operations...          0.58           0.58           0.46        0.66          (0.38)
Dividends paid or declared.......................         (0.33)         (0.34)         (0.35)      (0.34)         (0.35)
Distributions from net gain realized.............         (0.03)            --          (0.01)      (0.06)         (0.16)
                                                        -------        -------        -------     -------        -------
Net Increase (Decrease) in Net Asset Value.......          0.22           0.24           0.10        0.26          (0.89)
                                                        -------        -------        -------     -------        -------
Net Asset Value, End of Year.....................         $7.21          $6.99          $6.75       $6.65          $6.39
                                                        =======        =======        =======     =======        =======

TOTAL RETURN BASED ON NET ASSET VALUE:                     8.67%          8.87%          7.00%      10.85%         (5.46)%

RATIOS/SUPPLEMENTAL DATA:

Expenses to average net assets...................          0.77%          0.82%          0.79%       0.89%          0.81%
Net investment income to average net assets......          4.75%          4.99%          5.11%       5.34%          5.20%
Portfolio turnover...............................         30.82%         12.16%         12.84%      11.24%         22.16%
Net Assets, End of Year (000s omitted)...........       $87,522        $86,992        $95,560     $94,947        $99,020
</TABLE>

<TABLE>
<CAPTION>
                                                                                       CLASS D
                                                         ----------------------------------------------------------------
                                                                       YEAR ENDED SEPTEMBER 30,                2/1/94* TO
                                                           1998          1997           1996       1995         9/30/94
                                                         -------       -------        -------    -------       --------
<S>                                                       <C>            <C>            <C>         <C>           <C>
PER SHARE OPERATING PERFORMANCE:
Net Asset Value, Beginning of Period..............        $6.97          $6.74          $6.63       $6.38         $7.13
                                                         -------       -------        -------    -------       --------
Net investment income.............................         0.27           0.28           0.28        0.28          0.19
Net realized and unrealized investment gain (loss)         0.25           0.23           0.12        0.31         (0.75)
                                                         -------       -------        -------     -------      --------
Increase (Decrease) from Investment Operations....         0.52           0.51           0.40        0.59         (0.56)
Dividends paid or declared........................        (0.27)         (0.28)         (0.28)      (0.28)        (0.19)
Distributions from net gain realized..............        (0.03)            --          (0.01)      (0.06)           --
                                                         -------       -------        -------     -------      --------
Net Increase (Decrease) in Net Asset Value........         0.22           0.23           0.11        0.25         (0.75)
                                                         -------       -------        -------     -------      --------
Net Asset Value, End of Period....................        $7.19          $6.97          $6.74       $6.63         $6.38
                                                        =======        =======        =======     =======      ========
TOTAL RETURN BASED ON NET ASSET VALUE:                     7.71%          7.75%          6.20%       9.61%        (8.01)%

RATIOS/SUPPLEMENTAL DATA:

Expenses to average net assets....................         1.68%          1.72%          1.69%      1.88%          1.77%+
Net investment income to average net assets.......         3.84%          4.09%          4.21%      4.36%          4.39%+
Portfolio turnover................................        30.82%         12.16%         12.84%     11.24%         22.16%++
Net Assets, End of Period (000s omitted)..........       $2,302         $1,677         $1,645       $863           $812
</TABLE>
- -------------------
See footnotes on page 24.

                                       22
<PAGE>

Financial Highlights

<TABLE>
<CAPTION>
FLORIDA SERIES                                                                          CLASS A
                                                         -------------------------------------------------------------------
                                                                              YEAR ENDED SEPTEMBER 30,
                                                         -------------------------------------------------------------------
                                                           1998          1997           1996           1995           1994
                                                         --------      -------        -------        -------       ---------
<S>                                                       <C>            <C>            <C>           <C>            <C>
PER SHARE OPERATING PERFORMANCE:
Net Asset Value, Beginning of Year.................       $7.80          $7.67          $7.71         $7.34          $8.20
                                                         -------       -------        -------       -------        -------
Net investment income..............................        0.35           0.36           0.38          0.40           0.42
Net realized and unrealized investment gain (loss).        0.34           0.23           0.04          0.37          (0.74)
                                                         -------       -------        -------       -------        -------

Increase (Decrease) from Investment Operations.....        0.69           0.59           0.42          0.77          (0.32)
Dividends paid or declared.........................       (0.35)         (0.36)         (0.38)        (0.40)         (0.42)
Distributions from net gain realized...............       (0.07)         (0.10)         (0.08)           --          (0.12)
                                                         -------       -------        -------       -------        -------
Net Increase (Decrease) in Net Asset Value.........        0.27           0.13          (0.04)         0.37          (0.86)
                                                         -------       -------        -------       -------        -------
Net Asset Value, End of Year.......................       $8.07          $7.80          $7.67         $7.71          $7.34
                                                        =======        =======        =======       =======        =======
TOTAL RETURN BASED ON NET ASSET VALUE:                     9.16%          8.01%          5.54%        10.87%         (3.99)%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets.....................        1.00%          1.04%          0.97%         0.72%          0.42%
Net investment income to average net assets........        4.45%          4.70%          4.90%         5.38%          5.49%
Portfolio turnover.................................        6.73%         33.68%         18.53%        11.82%          6.17%
Net Assets, End of Year (000s omitted).............     $42,464        $42,024        $45,200       $49,030        $49,897
Without expense reimbursement and/or
   management fee waiver:**

   Net investment income per share.................                                     $0.38         $0.37          $0.38
   Ratios:
   Expenses to average net assets..................                                      0.97%         1.03%          1.00%
   Net investment income to average net assets.....                                      4.90%         5.07%          4.91%
</TABLE>

<TABLE>
<CAPTION>
                                                                                       CLASS D
                                                        -----------------------------------------------------------------
                                                                       YEAR ENDED SEPTEMBER 30,                  2/1/94*
                                                                                                                    TO
                                                          1998           1997           1996          1995       9/30/94
                                                        -------        -------        -------       -------      --------
<S>                                                       <C>            <C>            <C>           <C>           <C>
PER SHARE OPERATING PERFORMANCE:
Net Asset Value, Beginning of Period..............        $7.81          $7.68          $7.72         $7.34         $8.10
                                                        -------        -------        -------       -------      --------
Net investment income.............................         0.29           0.30           0.32          0.34          0.24
Net realized and unrealized investment gain (loss)         0.34           0.23           0.04          0.38         (0.76)
                                                        -------        -------        -------       -------      --------
Increase (Decrease) from Investment Operations....         0.63           0.53           0.36          0.72         (0.52)
Dividends paid or declared........................        (0.29)         (0.30)         (0.32)        (0.34)        (0.24)
Distributions from net gain realized..............        (0.07)         (0.10)         (0.08)           --            --
                                                        -------        -------        -------       -------      --------
Net Increase (Decrease) in Net Asset Value........         0.27           0.13          (0.04)         0.38         (0.76)
                                                        -------        -------        -------       -------      --------
Net Asset Value, End of Period....................        $8.08          $7.81          $7.68         $7.72         $7.34
                                                        =======        =======        =======       =======      ========
TOTAL RETURN BASED ON NET ASSET VALUE:                     8.32%          7.18%          4.74%        10.07%        (6.64)%

RATIOS/SUPPLEMENTAL DATA:

Expenses to average net assets....................         1.77%          1.81%          1.73%         1.66%         1.29%+
Net investment income to average net assets.......         3.68%          3.93%          4.14%         4.53%         4.61%+
Portfolio turnover................................         6.73%         33.68%         18.53%        11.82%         6.17%++
Net Assets, End of Period (000s omitted)..........       $1,940         $1,678         $1,277          $603          $244
Without expense reimbursement and/or
   management fee waiver:**

   Net investment income per share................                                      $0.32         $0.31         $0.21
   Ratios:
   Expenses to average net assets.................                                       1.73%         1.97%         1.84%+
   Net investment income to average net assets....                                       4.14%         4.22%        4.06%+
</TABLE>
- ---------------------
See footnotes on page 24.

                                       23
<PAGE>

Financial Highlights

<TABLE>
<CAPTION>
NORTH CAROLINA SERIES                                                                   CLASS A
                                                         -------------------------------------------------------------
                                                                               YEAR ENDED SEPTEMBER 30,
                                                         -------------------------------------------------------------
                                                           1998          1997          1996        1995           1994
                                                         -------       -------        -------     -------      -------
<S>                                                     <C>            <C>            <C>         <C>            <C>
PER SHARE OPERATING PERFORMANCE:
Net Asset Value, Beginning of Year..................      $8.05          $7.84          $7.74      $7.30         $8.22
                                                         -------       -------        -------     -------      -------
Net investment income...............................       0.36           0.37           0.37       0.39          0.41
Net realized and unrealized investment gain (loss)..       0.31           0.24           0.11       0.45         (0.87)
                                                         -------       -------        -------     -------      -------

Increase (Decrease) from Investment Operations......       0.67           0.61           0.48       0.84         (0.46)
Dividends paid or declared..........................      (0.36)         (0.37)         (0.37)     (0.39)        (0.41)
Distributions from net gain realized................      (0.06)         (0.03)         (0.01)     (0.01)        (0.05)
                                                         -------       -------        -------    -------       -------
Net Increase (Decrease) in Net Asset Value..........       0.25           0.21           0.10       0.44         (0.92)
                                                         -------       -------        -------    -------       -------
Net Asset Value, End of Year........................      $8.30          $8.05          $7.84      $7.74         $7.30
                                                         =======       =======        =======    =======       =======

TOTAL RETURN BASED ON NET ASSET VALUE:                    8.60%          8.01%           6.39%     11.92%        (5.80)%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets......................      1.05%          1.09%           1.05%      0.82%         0.44%
Net investment income to average net assets.........      4.41%          4.66%           4.75%      5.21%         5.29%
Portfolio turnover..................................     20.37%         13.04%          15.12%      4.38%        15.61%
Net Assets, End of Year (000s omitted)..............   $32,358        $32,684         $35,934    $37,446       $38,920
Without expense reimbursement and/or
   management fee waiver:**

   Net investment income per share..................                                    $0.37      $0.36         $0.35
   Ratios:
   Expenses to average net assets...................                                     1.06%      1.18%        1.13%
   Net investment income to average net assets......                                     4.74%      4.85%        4.60%
</TABLE>

<TABLE>
<CAPTION>

                                                                                       CLASS D
                                                         --------------------------------------------------------------
                                                                      YEAR ENDED SEPTEMBER 30,                  2/1/94*
                                                         -------------------------------------------------         TO
                                                           1998          1997           1996       1995         9/30/94
                                                         -------       -------        -------     -------      --------
<S>                                                     <C>            <C>            <C>           <C>           <C>
PER SHARE OPERATING PERFORMANCE:
Net Asset Value, Beginning of Period.............         $8.05          $7.83          $7.74       $7.29         $8.17
                                                         -------       -------        -------     -------      --------
Net investment income............................          0.30           0.31           0.31        0.33          0.23
Net realized and unrealized investment gain (loss)         0.31           0.25           0.10        0.46         (0.88)
                                                         -------       -------        -------     -------      --------
Increase (Decrease) from Investment Operations....         0.61           0.56           0.41        0.79         (0.65)
Dividends paid or declared........................        (0.30)         (0.31)         (0.31)      (0.33)        (0.23)
Distributions from net gain realized..............        (0.06)         (0.03)         (0.01)      (0.01)           --
                                                         -------       -------        -------     -------      --------
Net Increase (Decrease) in Net Asset Value........         0.25           0.22           0.09        0.45         (0.88)
                                                         -------       -------        -------     -------      --------
Net Asset Value, End of Period....................        $8.30          $8.05          $7.83       $7.74         $7.29
                                                         =======       =======        =======     =======      ========
TOTAL RETURN BASED ON NET ASSET VALUE:                    7.77%          7.33%          5.45%       11.19%        (8.15)%

RATIOS/SUPPLEMENTAL DATA:
Expenses to average net assets....................        1.82%          1.85%          1.81%        1.64%         1.27%+
Net investment income to average net assets.......        3.64%          3.90%          3.99%        4.42%         4.49%+
Portfolio turnover................................       20.37%         13.04%         15.12%        4.38%        15.61%++
Net Assets, End of Period (000s omitted)..........      $1,456         $1,217         $1,232       $1,257        $1,282
Without expense reimbursement and/or
   management fee waiver:**

   Net investment income per share................                                     $0.31        $0.31         $0.20
   Ratios:
   Expenses to average net assets.................                                      1.82%        2.00%         1.95%+
   Net investment income to average net assets....                                      3.98%        4.06%         3.82%+
</TABLE>
- ----------------
  *Commencement of operations.
 **During the periods stated, the Manager, at its discretion, waived all or a
   portion of its fees and, in some cases, reimbursed certain expenses for the
   Florida and North Carolina Series.
  +Annualized.
 ++For the year ended September 30, 1994.
See Notes to Financial Statements.

                                       24
<PAGE>

The Trustees and Shareholders,
Seligman Municipal Series Trust:

We have audited the accompanying statements of assets and liabilities, including
the portfolios of investments, of the California High-Yield, California Quality,
Florida, and North Carolina Series of Seligman Municipal Series Trust, as of
September 30, 1998, the related statements of operations for the year then ended
and of changes in net assets for each of the years in the two-year period then
ended, and the financial highlights for each of the periods presented. These
financial statements and financial highlights are the responsibility of the
Trust's management. Our responsibility is to express an opinion on these
financial statements and financial highlights based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included confirmation of securities owned as of
September 30, 1998 by correspondence with the Trust's custodian. An audit also
includes assessing the accounting principles used and significant estimates made
by management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our
opinion.

In our opinion, such financial statements and financial highlights present
fairly, in all material respects, the financial position of the California
High-Yield, California Quality, Florida, and North Carolina Series of Seligman
Municipal Series Trust as of September 30, 1998, the results of their
operations, the changes in their net assets, and the financial highlights for
the respective stated periods, in conformity with generally accepted accounting
principles.

/s/Deloitte & Touche LLP
- ------------------------
DELOITTE & TOUCHE LLP
New York, New York
October 30, 1998

                                       25
<PAGE>

Trustees

John R. Galvin 2, 4
Dean, Fletcher School of Law and Diplomacy
   at Tufts University
Director, Raytheon Company

Alice S. Ilchman 3, 4
Trustee, Committee for Economic Development
Chairman, The Rockefeller Foundation

Frank A. McPherson 2, 4
Director, Kimberly-Clark Corporation
Director, Baptist Medical Center

John E. Merow 2, 4
Retired Chairman and Senior Partner,
   Sullivan & Cromwell, Law Firm
Director, Commonwealth Industries, Inc
Director, New York Presbyterian Hospital

Betsy S. Michel 2, 4
Trustee, The Geraldine R. Dodge Foundation
Chairman of the Board of Trustees, St. George's School

William C. Morris 1
Chairman
Chairman of the Board, J. & W. Seligman & Co.
   Incorporated
Chairman, Carbo Ceramics Inc.
Director, Kerr-McGee Corporation

James C. Pitney 3, 4
Retired Partner, Pitney, Hardin, Kipp & Szuch, Law Firm

James Q. Riordan 3, 4
Director, KeySpan Energy Corporation
Trustee, Committee for Economic Development
Director, Public Broadcasting Service

Richard R. Schmaltz 1
Managing Director, Director of Investments,
   J. & W.  Seligman & Co. Incorporated
Trustee Emeritus, Colby College

Robert L. Shafer 3, 4
Retired Vice President, Pfizer, Inc.

James N. Whitson 2, 4
Director and Consultant, Sammons Enterprises, Inc.
Director,  CommScope, Inc.
Director,  C-SPAN

Brian T. Zino 1
President

President, J. & W.  Seligman & Co.  Incorporated
Chairman, Seligman Data Corp.
Director, ICIMutual Insurance Company
Trustee Emeritus

Fred E. Brown
Director and Consultant, J. & W. Seligman & Co.
   Incorporated

- ----------------
Member:  1 Executive Committee
         2 Audit Committee
         3 Trustee Nominating Committee
         4 Board Operations Committee

                                       26
<PAGE>

Executive Officers

William C. Morris
Chairman

Brian T. Zino
President

Thomas G. Moles
Vice President

Lawrence P. Vogel
Vice President

Thomas G. Rose
Treasurer

Frank J. Nasta
Secretary

FOR MORE INFORMATION

Manager
J. & W. Seligman & Co.
   Incorporated
100 Park Avenue
New York, NY 10017

General Counsel
Sullivan & Cromwell

Independent Auditors
Deloitte & Touche LLP

General Distributor
Seligman Advisors, Inc.
100 Park Avenue
New York, NY 10017

Shareholder Service Agent
Seligman Data Corp.
100 Park Avenue
New York, NY 10017

Important Telephone Numbers
(800) 221-2450     Shareholder
                   Services
(212) 682-7600     Outside the
                   United States
(800) 622-4597     24-Hour
                   Au to mat ed
                   Telephone
                   Access Service

                                       27
<PAGE>

Glossary of Financial Terms

Capital Gain Distribution -- A payment to mutual fund shareholders of profits
realized on the sale of securities in a fund's portfolio. For tax purposes,
these profits may be taxed at different rates, primarily depending upon the
length of time the securities were owned by the fund.

Capital Appreciation/Depreciation -- An increase or decrease in the market value
of a mutual fund's portfolio securities, which is reflected in the net asset
value of the fund's shares. Capital appreciation/depreciation of an individual
security is in relation to the original purchase price.

Compounding -- The change in the value of an investment as shareholders receive
earnings on their investment's earnings. For example, if $1,000 is invested at a
fixed rate of 7% a year, the initial investment is worth $1,070 after one year.
If the return is compounded, second year earnings will not be based on the
original $1,000, but on the $1,070, which includes the first year's earnings.

Contingent Deferred Sales Charge (CDSC) -- Depending on the class of shares
owned, a fee charged by a mutual fund when shares are sold back to the fund (the
CDSC expires after a fixed time period).

Dividend -- A payment by a mutual fund, usually derived from the fund's net
investment income (dividends and interest less expenses).

Dividend Yield -- A measurement of a fund's dividend as a percentage of the
maximum offering price.

Expense Ratio -- The cost of doing business for a mutual fund, expressed as a
percent of the fund's net assets.

Investment Objective -- The shared investment goal of a fund and its
shareholders.

Management Fee -- The amount paid by a mutual fund to its investment advisor(s).

Multiple Classes of Shares -- Although an individual mutual fund invests in only
one portfolio of securities, it may offer investors several purchase options
which are "classes" of shares. Multiple classes permit shareholders to choose
the fee structure that best meets their needs and goals. Generally, each class
will differ in terms of how and when sales charges and certain fees are
assessed.

National Association of Securities Dealers, Inc. (NASD) -- A self-regulatory
body with authority over firms that distribute mutual funds.

Net Asset Value (NAV) Per Share -- The market worth of one fund share, obtained
by adding a mutual fund's total assets (securities, cash, and any accrued
earnings), subtracting liabilities, and dividing the resulting net assets by the
number of shares outstanding.

Offering Price (OP) -- The price at which a mutual fund's share can be
purchased. The offering price per share is the current net asset value plus any
sales charge.

Portfolio Turnover -- A measure of the trading activity in a mutual fund's
investment portfolio that reflects how often securities are bought and sold.

Prospectus -- The legal document describing a mutual fund to all prospective
shareholders. It contains information required by the Securities and Exchange
Commission (SEC), such as a fund's investment objective and policies, services,
investment restrictions, officers and directors, how shares are bought and
redeemed, fund fees and other charges, and the fund's financial statements.

SEC Yield -- SEC Yield refers to the net income earned by a fund during a recent
30-day period. This income is annualized and then divided by the maximum
offering price per share on the last day of the 30-day period. The SEC Yield
formula reflects semiannual compounding.

Securities and Exchange Commission -- The primary US federal agency that
regulates the registration and distribution of mutual fund shares.

Statement of Additional Information -- A document that contains updated or more
detailed information about an investment company and that supplements the
prospectus. It is available at no charge upon request.

Total Return -- A measure of a fund's performance encompassing all elements of
return. Reflects the change in share price over a given period and assumes all
distributions are taken in additional fund shares. The Average Annual Total
Return represents the average annual compounded rate of return for the periods
presented.

Yield on Securities -- For bonds, the current yield is the coupon rate of
interest, divided by the purchase price. For stocks, the yield is measured by
dividing dividends paid by the market price of the stock.

- -----------------
Adapted from the Investment Company Institute's 1998 Mutual Fund Fact Book.

                                       28
<PAGE>
This report is intended only for the information of shareholders or those who
have received the offering prospectus covering shares of Beneficial Interest
of Seligman  Municipal Series Trust, which contains information about the sales
charges, management fee, and other costs. Please read the prospectus carefully
                      before investing or sending money.



                                                SELIGMAN ADVISORS, INC.
                                                    an affiliate of
                                                          JWS
                                                 J. & W. SELIGMAN & CO.
                                                      INCORPORATED

                                                    ESTABLISHED 1864
                                          100 Park Avenue, New York, NY 10017

TEB2 9/98

<PAGE>
                                                                FILE NO. 2-92569
                                                                        811-4250
PART C.  OTHER INFORMATION

Item 23. Exhibits

   
          All Exhibits have been previously filed and are incorporated herein by
reference, except Exhibits marked with an asterisk (*) which are filed herewith.
    

(a)       Form of  Amended  and  Restated  Declaration  of Trust of  Registrant.
          (Incorporated  by reference to Registrant's  Post-Effective  Amendment
          No. 25 filed on January 29, 1997.)

(b)       Amended and Restated Bylaws of Registrant.  (Incorporated by reference
          to Registrant's  Post-Effective  Amendment No. 25, filed on January 29
          1997.)

(c)       Copy of  Specimen  of Stock  Certificates  for  Class D Shares of each
          Series.  (Incorporated  by  reference to  Registrant's  Post-Effective
          Amendment No. 22 filed on January 29, 1994.)

(d)       Management   Agreement  between  the  Registrant  on  behalf  of  the
          California  High-Yield  Municipal  Series  and J. & W.  Seligman & Co.
          Incorporated.    (Incorporated    by   reference    to    Registrant's
          Post-Effective Amendment No. 25 filed on January 29, 1997.)

(d)(1)    Management   Agreement  between  the  Registrant  on  behalf  of  the
          California  Quality  Municipal  Series  and  J.  & W.  Seligman  & Co.
          Incorporated.    (Incorporated    by   reference    to    Registrant's
          Post-effective Amendment No. 25 filed on January 29, 1997.)

(d)(2)    Management  Agreement between the Registrant on behalf of the Florida
          Municipal   Series  and  J.  &  W.   Seligman   &  Co.   Incorporated.
          (Incorporated  by reference to Registrant's  Post-Effective  Amendment
          No. 25 filed on January 29, 1997.)

(d)(3)    Management  Agreement  between the  Registrant on behalf of the North
          Carolina  Municipal  Series and J. & W.  Seligman & Co.  Incorporated.
          (Incorporated  by reference to Registrant's  Post-Effective  Amendment
          No. 25 filed on January 29, 1997.)

   
(e)       Copy  of  Distributing   Agreement  between  Registrant  and  Seligman
          Advisors,   Inc.   (formerly,   Seligman  Financial   Services,   Inc.
          (Incorporated  by reference to Registrant's  Post-Effective  Amendment
          No. 25 filed on January 29, 1997.)

(e)(1)    Copy of Amended Sales Agreement between Dealers and Seligman Advisors,
          Inc. (formerly,  Seligman Financial  Services,  Inc.) (Incorporated by
          reference to  Registrant's  Post-Effective  Amendment  No. 25 filed on
          January 29, 1997.)


(f)       Matched  Accumulation  Plan of J. & W.  Seligman  & Co.  Incorporated.
          (Incorporated  by reference to Registrant's  Post-Effective  Amendment
          No. 25 filed on January 29, 1997.)


(f)(1)    *Deferred Compensation Plan for Directors of Seligman Municipal Series
          Trust.
    

(g)       Custodian  Agreement between Registrant and Investors  Fiduciary Trust
          Company.  (Incorporated  by reference to  Registrant's  Post-Effective
          Amendment No. 25 filed on January 29, 1997.)

(h)       Not Applicable.

(i)       Opinions  and  Consents  of Counsel.  (Incorporated  by  reference  to
          Registrant's  Post-Effective  Amendment  No. 25 filed on  January  29,
          1997.)

   
(j)       *Consent of Independent Auditors.

(j)(1)    *Opinion and Consent of California Counsel.

(j)(2)    *Consent of North Carolina Counsel.
    

(k)       Not Applicable.

<PAGE>
                                                                FILE NO. 2-92569
                                                                        811-4250
PART C.  OTHER INFORMATION (CONTINUED)

(l)       Copy of Purchase  Agreement  for  Initial  Capital for Class D Shares.
          (Incorporated  by reference to Registrant's  Post-Effective  Amendment
          No. 25 filed on January 29, 1997.)

(m)       Copy of amended Administration,  Shareholder Services and Distribution
          Plans  of  each   Series  and  form  of   Agreement   of   Registrant.
          (Incorporated  by reference to Registrant's  Post-Effective  Amendment
          No. 25 filed on January 29, 1997.)

   
(n)       *Financial Data Schedules  meeting the  requirements of Rule 483 under
          the Securities Act of 1933.
    

(o)       Copy of Multiclass  Plan for Seligman  Group of Funds pursuant to Rule
          18f-3  under the  Investment  Company  Act of 1940.  (Incorporated  by
          reference to  Registrant's  Post-Effective  Amendment  No. 25 filed on
          January 29, 1997.)

Other  Exhibits:  Powers of Attorney. (Incorporated by reference to Registrant's
                  Post-Effective Amendment No. 31 filed on January 27, 1998.)

Item 24. PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH REGISTRANT - None.
- --------

Item 25. INDEMNIFICATION
- --------

         Reference  is made to the  provisions  of Article  VII of  Registrant's
         Amended and Restated Declaration of Trust filed as Exhibit 24(b)(1) and
         Article VII of  Registrant's  Amended  and  Restated  By-Laws  filed as
         Exhibit 24(b)(2) to Registrant's Post-Effective Amendment No. 25 to the
         Registration Statement.

         Insofar as  indemnification  for liability arising under the Securities
         Act of 1933 may be  permitted to  trustees,  officers  and  controlling
         persons of the  registrant  pursuant to the  foregoing  provisions,  or
         otherwise,  the  registrant  has been  advised  by the  Securities  and
         Exchange  Commission such  indemnification  is against public policy as
         expressed  in the Act and is,  therefore,  unenforceable.  In the event
         that a claim for  indemnification  against such liabilities (other than
         the  payment  by the  registrant  of  expenses  incurred  or  paid by a
         trustee,  officer  or  controlling  person  of  the  registrant  in the
         successful  defense of any action,  suit or  proceeding) is asserted by
         such trustee,  officer or  controlling  person in  connection  with the
         securities being registered, the registrant will, unless in the opinion
         of its counsel the matter has been  settled by  controlling  precedent,
         submit to a court of appropriate jurisdiction the question whether such
         indemnification  by it is against public policy as expressed in the Act
         and will be governed by the final adjudication of such issue.

Item 26. BUSINESS AND OTHER CONNECTIONS OF INVESTMENT ADVISER - J. & W. Seligman
- -------- &  Co.  Incorporated,   a  Delaware  corporation  ("Manager"),  is  the
         Registrant's  investment manager. The Manager also serves as investment
         manager to seventeen associated investment companies. They are Seligman
         Capital Fund,  Inc.,  Seligman Cash  Management  Fund,  Inc.,  Seligman
         Common Stock Fund, Inc., Seligman  Communications and Information Fund,
         Inc.,  Seligman  Frontier  Fund,  Inc.,  Seligman  Growth  Fund,  Inc.,
         Seligman Henderson Global Fund Series,  Inc., Seligman High Income Fund
         Series,  Seligman Income Fund,  Inc.,  Seligman  Municipal Fund Series,
         Inc., Seligman New Jersey Municipal Fund, Inc.,  Seligman  Pennsylvania
         Municipal Fund Series,  Seligman  Portfolios,  Inc.,  Seligman  Quality
         Municipal Fund, Inc.,  Seligman Select  Municipal Fund, Inc.,  Seligman
         Value Fund Series, Inc. and Tri-Continental Corporation.

         The Manager has an investment  advisory service division which provides
         investment  management or advice to private clients.  The list required
         by this Item 28 of officers and directors of the Manager, together with
         information  as  to  any  other  business,   profession,   vocation  or
         employment  of a  substantial  nature  engaged in by such  officers and
         directors  during the past two years,  is  incorporated by reference to
         Schedules A and D or Form ADV,  filed by the  Manager,  pursuant to the
         Investment  Advisers Act of 1940 (SEC File No.  801-15798) on March 25,
         1998.

<PAGE>
                                                                FILE NO. 2-92569
                                                                        811-4250
PART C.  OTHER INFORMATION (CONTINUED)

Item 27.   PRINCIPAL UNDERWRITERS
- --------

         (a)  The names of each investment  company (other than the  Registrant)
for which each principal  underwriter currently  distributing  securities of the
Registrant also acts as a principal underwriter, depositor or investment adviser
are:

              Seligman Capital Fund, Inc.
              Seligman Cash Management Fund, Inc.
              Seligman Common Stock Fund, Inc.
              Seligman Communications and Information Fund, Inc.
              Seligman Frontier Fund, Inc.
              Seligman Growth Fund, Inc.
              Seligman Henderson Global Fund Series, Inc.
              Seligman High Income Fund Series
              Seligman Income Fund, Inc.
              Seligman Municipal Fund Series, Inc.
              Seligman New Jersey Municipal Fund, Inc.
              Seligman Pennsylvania Municipal Fund Series
              Seligman Portfolios, Inc.
              Seligman Value Fund Series, Inc.

         (b)  Name  of each  director,  officer  or  partner  of each  principal
underwriter named in response to Item 21:
<TABLE>
<CAPTION>

   
                                           Seligman Advisors, Inc.
                                           As of December 31, 1998 
                                           ----------------------- 
<S>              <C>                                         <C>                                             <C>
                 (1)                                         (2)                                             (3)
         Name and Principal                            Positions and Offices                       Positions and Offices
          Business Address                             with Underwriter                            with Registrant
          ----------------                             ----------------                            ---------------
         WILLIAM C. MORRIS*                            Director                                    Chairman of the
                                                                                                   Board and Chief
                                                                                                   Executive Officer
         BRIAN T. ZINO*                                Director                                    President and Trustee
         RONALD T. SCHROEDER*                          Director                                    None
         FRED E. BROWN*                                Director                                    Trustee
                                                                                                   Emeritus
         WILLIAM H. HAZEN*                             Director                                    None
         THOMAS G. MOLES*                              Director                                    None
         DAVID F. STEIN*                               Director                                    None
         STEPHEN J. HODGDON*                           President and Director                      None
         CHARLES W. KADLEC*                            Chief Investment Strategist                 None
         LAWRENCE P. VOGEL*                            Senior Vice President, Finance              Vice
                                                                                                   President
         EDWARD F. LYNCH*                              Senior Vice President, National             None
                                                       Sales Director
         JAMES R. BESHER                               Senior Vice President, Divisional           None
         14000 Margaux Lane                            Sales Director
         Town & Country, MO  63017
         GERALD I. CETRULO, III                        Senior Vice President, Sales                None
         140 West Parkway
         Pompton Plains, NJ  07444
         JONATHAN G. EVANS                             Senior Vice President, Sales                None
         222 Fairmont Way
         Ft. Lauderdale, FL  33326
         T. WAYNE KNOWLES                              Senior Vice President,                      None
         104 Morninghills Court                        Divisional Sales Director
         Cary, NC  27511
    
</TABLE>

<PAGE>
                                                                FILE NO. 2-92569
                                                                        811-4250
PART C.  OTHER INFORMATION (CONTINUED)
<TABLE>
<CAPTION>

   
                                           Seligman Advisors, Inc.
                                           As of December 31, 1998 
                                           ----------------------- 
<S>              <C>                                         <C>                                             <C>
                 (1)                                         (2)                                             (3)
         Name and Principal                            Positions and Offices                       Positions and Offices
          Business Address                             with Underwriter                            with Registrant
          ----------------                             ----------------                            ---------------
         JOSEPH LAM                                    Senior Vice President, Regional             None
         Seligman International Inc.                   Director, Asia
         Suite 1133, Central Building
         One Pedder Street
         Central Hong Kong
         BRADLEY W. LARSON                             Senior Vice President, Sales                None
         367 Bryan Drive
         Alamo, CA  94526
         RICHARD M. POTOCKI                            Senior Vice President, Regional             None
         Seligman International UK Limited             Director, Europe and the Middle East
         Berkeley Square House 2nd Floor
         Berkeley Square
         London, United Kingdom W1X 6EA
         BRUCE M. TUCKEY                               Senior Vice President, Sales                None
         41644 Chathman Drive
         Novi, MI  48375
         ANDREW S. VEASEY                              Senior Vice President, Sales                None
         14 Woodside
         Rumson, NJ  07760
         J. BRERETON YOUNG*                            Senior Vice President, National             None
                                                       Accounts Manager
         PETER J. CAMPAGNA                             Vice President, Regional Retirement         None
         1130 Green Meadow Court                       Plans Manager
         Acworth, GA  30102
         MATTHEW A. DIGAN*                             Senior Vice President, Director of          None
                                                       Mutual Fund Marketing
         MASON S. FLINN                                Vice President, Regional Retirement         None
         159 Varennes                                  Plans Manager
         San Francisco, CA  94133
         ROBERT T. HAUSLER*                            Senior Vice President, Senior               None
                                                       Portfolio Specialist
         MARSHA E. JACOBY*                             Vice President, Offshore Business           None
                                                       Manager
         WILLIAM W. JOHNSON*                           Vice President, Order Desk                  None
         MICHELLE L. MCCANN (RAPPA)*                   Senior Vice President, Director of          None
                                                       Retirement Plans
         SCOTT H. NOVAK*                               Senior Vice President, Insurance            None

         RONALD W. POND*                               Vice President, Portfolio Advisor           None
         TRACY A. SALOMON*                             Vice President, Retirement Marketing        None
         MICHAEL R. SANDERS*                           Vice President, Product Manager             None
                                                       Managed Money Services
         HELEN SIMON*                                  Vice President, Sales                       None
                                                       Administration Manager
         GARY A. TERPENING*                            Vice President, Director of Business        None
                                                       Development
</TABLE>
    

<PAGE>
                                                                FILE NO. 2-92569
                                                                        811-4250
PART C.  OTHER INFORMATION (CONTINUED)
<TABLE>
<CAPTION>

   
                                           Seligman Advisors, Inc.
                                           As of December 31, 1998
                                           -----------------------
<S>              <C>                                         <C>                                             <C>
                 (1)                                         (2)                                             (3)
         Name and Principal                            Positions and Offices                       Positions and Offices
         Business Address                              with Underwriter                            with Registrant
         ----------------                              ----------------                            ---------------
         CHARLES L. VON BREITENBACH, II*               Senior Vice President, Director of          None
                                                       Managed Money Services
         JOAN M. O'CONNELL                             Vice President, Regional Retirement         None
         3707 5th Avenue #136                          Plans Manager
         San Diego, CA  92103
         CHARLES E. WENZEL                             Vice President, Regional Retirement         None
         703 Greenwood Road                            Plans Manager
         Wilmington, DE  19807
         JEFFERY C. PLEET*                             Vice President, Regional Retirement         None
                                                       Plans Manager
         RICHARD B. CALLAGHAN                          Regional Vice President                     None
         7821 Dakota Lane
         Orland Park, IL  60462
         BRADFORD C. DAVIS                             Regional Vice President                     None
         255 4th Avenue, #2
         Kirkland, WA  98033
         CHRISTOPHER J. DERRY                          Regional Vice President                     None
         2380 Mt. Lebanon Church Road
         Alvaton, KY  42122
         KENNETH DOUGHERTY                             Regional Vice President                     None
         8640 Finlarig Drive
         Dublin, OH  43017
         EDWARD S. FINOCCHIARO                         Regional Vice President                     None
         120 Screenhouse Lane
         Duxbury, MA  02332
         MICHAEL C. FORGEA                             Regional Vice President                     None
         32 W. Anapamu Street # 186
         Santa Barbara, CA  93101
         DAVID L. GARDNER                              Regional Vice President                     None
         2504 Clublake Trail
         McKinney, TX  75070
         CARLA A. GOEHRING                             Regional Vice President                     None
         11426 Long Pine
         Houston, TX  77077
         MICHAEL K. LEWALLEN                           Regional Vice President                     None
         908 Tulip Poplar Lane
         Birmingham, AL  35244
         JUDITH L. LYON                                Regional Vice President                     None
         163 Haynes Bridge Road, Ste 205
         Alpharetta, CA  30201
         STEPHEN A. MIKEZ                              Regional Vice President                     None
         11786 E. Charter Oak
         Scottsdale, AZ  85259
         TIM O'CONNELL                                 Regional Vice President                     None
         14872 Summerbreeze Way
         San Diego, CA  92128
</TABLE>
    


<PAGE>
                                                                FILE NO. 2-92569
                                                                        811-4250
PART C.  OTHER INFORMATION (CONTINUED)
<TABLE>
<CAPTION>

   
                                           Seligman Advisors, Inc.
                                           As of December 31, 1998
                                           -----------------------
<S>              <C>                                         <C>                                             <C>
                 (1)                                         (2)                                             (3)
         Name and Principal                            Positions and Offices                       Positions and Offices
         Business Address                              with Underwriter                            with Registrant
         ----------------                              ----------------                            ---------------
         THOMAS PARNELL                                Regional Vice President                     None
         5250 Greystone Drive  #107
         Inver Grove Heights, MN  55077
         DAVID K. PETZKE                               Regional Vice President                     None
         2714 Winding Trail Place
         Boulder, CO  80304
         NICHOLAS ROBERTS                              Regional Vice President                     None
         200 Broad Street, Apt. 2225
         Stamford, CT  06901
         DIANE H. SNOWDEN                              Regional Vice President                     None
         11 Thackery Lane
         Cherry Hill, NJ  08003
         CRAIG PRICHARD                                Regional Vice President                     None
         300 Spyglass Drive
         Fairlawn, OH  44333
         STEVE WILSON                                  Regional Vice President                     None
         83 Kaydeross Park Road
         Saratoga Springs, NY  12866
         EUGENE P. SULLIVAN                            Regional Vice President                     None
         8 Charles Street, Apt. 603
         Baltimore, MD  21201
         KELLI A. WIRTH DUMSER                         Regional Vice President                     None
         8618 Hornwood Court
         Charlotte, NC  28215
         FRANK J. NASTA*                               Secretary                                   Secretary
         AURELIA LACSAMANA*                            Treasurer                                   None
         JEFFREY S. DEAN*                              Vice President, Business
                                                       Analyst                                     None
         SANDRA G. FLORIS*                             Assistant Vice President, Order Desk        None
         KEITH LANDRY*                                 Assistant Vice President, Order Desk        None
         GAIL S. CUSHING*                              Assistant Vice President, National          None
                                                       Accounts Manager
         ALBERT A. PISANO*                             Assistant Vice President and                None
                                                       Compliance Officer
         JACK TALVY*                                   Assistant Vice President, Internal          None
                                                       Marketing Services Manager
         JOYCE PERESS*                                 Assistant Secretary                         Assistant
                                                                                                   Secretary
    
</TABLE>

* The principal  business  address of each of these directors and/or officers is
100 Park Avenue, New York, N Y 10017.

    (c)  Not Applicable

<PAGE>
                                                                FILE NO. 2-92569
                                                                        811-4250
PART C.  OTHER INFORMATION (CONTINUED)

Item 28.   LOCATION OF ACCOUNTS AND RECORDS
- --------
           Custodian:  Investors Fiduciary Trust Company
                       801 Pennsylvania
                       Kansas City, Missouri  64105 and
                       Seligman Municipal Series Trust
                       100 Park Avenue
                       New York, New York  10017

Item 29.   MANAGEMENT SERVICES - Not Applicable.
- --------

Item 30.   UNDERTAKINGS -The Registrant undertakes: (1) if requested to do so by
           the holders of at least ten  percent of its  outstanding  shares,  to
           call a meeting of  shareholders  for the  purpose of voting  upon the
           removal of a director or  directors  and to assist in  communications
           with  other   shareholders  as  required  by  Section  16(c)  of  the
           Investment  Company Act of 1940; and (2) to furnish to each person to
           whom a prospectus is  delivered,  a copy of the  Registrant's  latest
           annual report to shareholders, upon request and without charge.

<PAGE>

                                                                FILE NO. 2-92569
                                                                        811-4250

                                   SIGNATURES


         Pursuant to the  requirements  of the  Securities  Act of 1933, and the
Investment  Company Act of 1940, the  Registrant  certifies that it meets all of
the requirements for effectiveness of this Post-Effective  Amendment pursuant to
Rule  485(b)  under  the  Securities  Act of  1933  and  has  duly  caused  this
Post-Effective  Amendment No. 29 to its  Registration  Statement to be signed on
its behalf by the  undersigned,  thereunto duly  authorized,  in the City of New
York, State of New York, on the 28th day of January, 1999.

                                  SELIGMAN MUNICIPAL SERIES TRUST




                                  By: /s/ WILLIAM C. MORRIS  
                                      ------------------------------------------
                                          William C. Morris, Chairman


         Pursuant  to the  requirements  of the  Securities  Act of  1933,  this
Post-Effective  Amendment No. 29 has been signed below by the following  persons
in the capacities indicated on January 28, 1999.


        Signature                                  Title
        ---------                                  -----

/s/ WILLIAM C. MORRIS                    Chairman of the Trustees (Principal
- ---------------------------------        executive officer) and Trustee
    William C. Morris*                    



/s/ BRIAN T. ZINO                        President and Trustee
- ---------------------------------
    Brian T. Zino



/s/ THOMAS G. ROSE                       Treasurer (Principal financial
- ---------------------------------        and accounting officer)
    Thomas G. Rose                                         




John R. Galvin, Trustee               )
Alice S. Ilchman, Trustee             )
Frank A. McPherson, Trustee           )
John E. Merow, Trustee                )  /s/ BRIAN T. ZINO  
Betsy S. Michel, Trustee              )  ---------------------------------------
James C. Pitney, Trustee              )  *By: Brian T. Zino, Attorney-in-fact
James Q. Riordan, Trustee             )
Richard R. Schmaltz, Trustee          )
Robert L. Shafer, Trustee             )
James N. Whitson, Trustee             )


<PAGE>

                                                                FILE NO. 2-92569
                                                                        811-4250

   
                         SELIGMAN MUNICIPAL SERIES TRUST
                     POST-EFFECTIVE AMENDMENT NO. 29 TO THE
                       REGISTRATION STATEMENT ON FORM N-1A
    



                                  EXHIBIT INDEX

         Form N1-A Item No.         Description
         ------------------         -----------

   
         23(f)(1)                   Deferred Compensation Plan

         23(j)                      Consent of Independent Auditors

         23(j)(1)                   Opinion and Consent of California Counsel

         23(j)(2)                   Consent of North Carolina Counsel

         23(n)                      Financial Data Schedules
    


                    DEFERRED COMPENSATION PLAN FOR DIRECTORS

                                       OF

                         SELIGMAN MUNICIPAL SERIES TRUST
                                    ("FUND")


1.      ELECTION TO DEFER PAYMENTS. Any member of the Board of Directors
(herein, a "Director") of the Fund may elect to have payment of that Director's
annual retainer or meeting fees or both for Board service deferred as provided
in this Plan. The election shall be made in writing prior to, and to take effect
from, the beginning of a calendar year. For any Director in the year in which
this Plan is adopted or for a person elected a director in other than the last
calendar month of a year, the election shall be made within 30 days after that
event and prior to, and to take effect from, the beginning of the calendar
quarter next ensuing after that event. Elections shall continue in effect until
terminated in writing, any such termination to take effect on the first day of
the calendar year beginning after receipt of the notice of termination. An
election shall be irrevocable as to payments deferred in conformity with that
election.

2.      DEFERRED PAYMENT ACCOUNT. Each deferred retainer or fee shall be
credited at the time when it otherwise would have been payable to an account to
be established in the name of the Director on the books of the Fund (the
"Deferred Payment Account") adjusted for notional investment experience as
hereinafter described.

3.      RETURN ON DEFERRED PAYMENT ACCOUNT BALANCE. (a) For purposes of
measuring the investment return on his Deferred Payment Account, the Director
may elect to have the aggregate amount of his deferred compensation (or a
specified portion thereof) receive a return (i) at a rate equal to the return
earned on three-month U.S. Treasury Bills at the beginning of each calendar
quarter (the "Treasury Bill Rate") and such interest shall be credited to the
account quarterly at the end of each calendar quarter, or (ii) at a rate of
return (positive or negative) equal to the rate of return on the shares of any
of the registered investment companies managed by J. & W. Seligman & Co.
Incorporated ("Seligman") or any other entity controlling, controlled by, or
under common control with (as such terms are defined in the Investment Company
Act of 1940) Seligman (each, a "Notional Fund"), assuming reinvestment of
dividends and distributions from the Notional Funds. (b) A Director may amend
his designation of investment return as of the end of each calendar quarter by
giving written notice to the President of the Fund at least 30 days prior to the
end of such calendar quarter. A timely change to a Director's designation of
investment return shall become effective on the first day of the calendar
quarter following receipt by the President of the Fund (the "President").

4.      NOTIONAL INVESTMENT EXPERIENCE. Amounts credited to a Deferred Payment
Account shall be periodically adjusted for notional investment experience. In
each case such notional investment experience shall be determined by treating
the Deferred

<PAGE>

Payment Account as though an equivalent dollar amount had been invested and
reinvested in one or more of the Notional Funds. The Notional Funds used as a
basis for determining notional investment experience with respect to any
Director's Deferred Payment Account shall be designated by the Director in
writing by instrument of election substantially in the form attached hereto as
Exhibit C and may be changed prospectively by similar written election effective
as of the first day of any calendar quarter. The President may from time to time
limit the Notional Funds available for purposes of such election. If at any time
any Notional Fund that has previously been designated by a Director as a
notional investment shall cease to exist or shall be unavailable for any reason,
or if the Director fails to designate one or more Notional Funds pursuant to
this Section 4, the President may, at his discretion and upon notice to the
Director, treat any amounts notionally invested in such Notional Fund (whether
representing past amounts credited to a Director's Deferred Payment Account or
subsequent fee deferrals or both) as having been invested at the Treasury Bill
Rate, only until such time as the Director shall have made another investment
election in accordance with the foregoing procedures. Deferred Payment Accounts
shall continue to be adjusted for notional investment experience until
distributed in full in accordance with the distribution method elected by the
Director pursuant to Section 5 hereof.

5.      PAYMENT OF DEFERRED AMOUNTS. All amounts credited to an account
pursuant to any election by the Director made as provided in Section 1 hereof
shall be paid to the Director

         (a)      in, or beginning in, the calendar year following the calendar
                  year in which the Director ceases to be a Director of the
                  Fund, or

         (b)      in, or beginning in, the calendar year following the earlier
                  of the calendar year in which the Director ceases to be a
                  Director of the Fund or attains age 70,

                  and shall be paid

         (c)      in a lump sum payable on the first day of the calendar year in
                  which payment is to be made, or

         (d)      in 10 or fewer installments, payable on the first day of each
                  year commencing with the calendar year in which payment is to
                  begin, all as the Director shall specify in making the
                  election. If the payment is to be made in installments, the
                  amount of each installment shall be equal to a fraction of the
                  total of the amounts in the account at the date of the payment
                  the numerator of which shall be one and the denominator of
                  which shall be the then remaining number of unpaid
                  installments (including the installment then to be paid). If
                  the Director dies at any time before all amounts in the
                  account have been paid, such amounts shall be paid at that
                  time in a lump sum to the beneficiary or beneficiaries

<PAGE>

                  designated by the Director in writing to receive such payments
                  or in the absence of such a designation to the estate of the
                  Director.

The Board of Directors may, in the case of an unforseeable emergency, at its
sole discretion accelerate the payment of any unpaid amount for any or all
Directors. For purposes of this paragraph, an unforseeable emergency is severe
financial hardship to the Director resulting from a sudden and unexpected
illness or accident of the Director or of a dependent (as defined in section
152(a) of the Internal Revenue Code) of the Director, loss of the Director's
property due to casualty, or other similar extraordinary and unforseeable
circumstances arising as a result of events beyond the control of the Director.
Payment due to an unforseeable emergency may not be made to the extent that such
hardship is or may be relieved (i) through reimbursement or compensation by
insurance or otherwise; (ii) by liquidation of the Director's assets, to the
extent the liquidation of such assets would not itself cause severe financial
hardship, or (iii) by cessation of deferrals under the Plan. Examples of what
are not considered to be unforseeable emergencies include the need to send a
Director's child to college or the desire to purchase a home. Withdrawals of
amounts because of an unforseeable emergency are only permitted to the extent
reasonably necessary to satisfy the emergency need.

6.      ASSIGNMENT. No deferred amount or unpaid portion thereof may be
assigned or transferred by the Director except by will or the laws of descent
and distribution.

7.      WITHHOLDING TAXES. The Fund shall deduct from all payments any federal,
state or local taxes and other charges required by law to be withheld with
respect to such payments.

8.      NATURE OF RIGHTS; NONALIENATION. A Director's rights to deferred
payment under the Plan shall be solely those of an unsecured general creditor of
the Fund, and any payments by the Fund pursuant to the Plan will be made solely
from the Fund's general assets and property. The Fund will be under no
obligation to purchase, hold or dispose of any investment for the specific
benefit of any Director but, if the Fund should choose to purchase shares of any
Notional Fund in order to cover all or a portion of its obligations under the
Plan, then such investments will continue to be a part of the general assets and
property of the Fund. A Director's rights under the Plan may not be transferred,
assigned, pledged or otherwise alienated, and any attempt by the Director to do
so shall be null and void.

9.      STATUS OF DIRECTOR. Nothing in the Plan nor any election hereunder
shall be construed as conferring on any Director the right to remain a Director
of the Fund or to receive fees at any particular rate.

10.     AMENDMENT AND ACCELERATION. The Board of Directors may at any time at
its sole discretion amend or terminate this Plan, provided that no such
amendment or termination 

<PAGE>

shall adversely affect the right of Directors to receive deferred amounts
credited to their account.

11.     ADMINISTRATION. The Plan shall be administered by the President or by
such person or persons as the President may designate to carry out
administrative functions hereunder. The President shall have complete discretion
to interpret and administer the Plan in accordance with its terms, and his
determinations shall be binding on all persons.


Amended as of March 19, 1998


 



CONSENT OF INDEPENDENT AUDITORS

Seligman Municipal Series Trust, Inc.:

     We consent to the use in  Post-Effective  Amendment No. 29 to  Registration
Statement  No.  2-92569 of our report dated  October 30, 1998,  appearing in the
Annual  Report  to   Shareholders   for  the  year  ended  September  30,  1998,
incorporated by reference in the Statement of Additional Information, and to the
reference  to us under the caption  "Financial  Highlights"  in the  Prospectus,
which is also part of such Registration Statement.




DELOITTE & TOUCHE LLP
New York, New York
January 25, 1999

Seligman Municipal Series Trust                                              -1-



                               SULLIVAN & CROMWELL


                                             January 25, 1999





Seligman  Municipal Series Trust
100 Park Avenue, 8th Floor
New York, New York 10017.


Ladies and Gentlemen:

                  We have acted as counsel to Seligman  Municipal  Series  Trust
(the  "Trust"),  and you have  requested our opinion  regarding  the  California
personal  income tax  consequences to holders of certain of the series of shares
of beneficial interest in the Trust.

                  The Trust,  an  unincorporated  business trust organized under
the  laws  of   Massachusetts   pursuant   to  a   Declaration   of  Trust  (the
"Declaration"),  is an open-end,  non-diversified management investment company.
Article VI of the  Declaration  authorizes  the  issuance  of shares or units of
beneficial  interest  in the Trust.  The shares  may be divided  into  series of
shares, the proceeds of which may be invested in separate investment portfolios.
Each share in a series represents a beneficial interest in the net assets of the
series,   and  each  shareholder  in  a  series  is  entitled  to  receive  such
shareholder's  pro rata share of  distributions of income and capital gains with
respect to such series.  Upon redemption of a shareholder's  shares in a series,
the  shareholder  is paid solely out of the funds and  property of such  series,

<PAGE>
Seligman Municipal Series Trust                                              -2-

and, upon liquidation or termination of a series, a shareholder is entitled only
to such shareholder's pro rata share of the net assets of such series.

                  All consideration  received by the Trust for the issue or sale
of shares in a series, all assets in which such  consideration is invested,  and
all income from such  assets,  including  any  proceeds  derived  from the sale,
exchange, or liquidation of such assets, belong to that series,  subject only to
the rights of creditors of the series.  The assets  belonging to each series are
charged  with the  liabilities  attributable  to that  series  only and with all
expenses, costs, charges, and reserves attributable to that series.

                  At present,  the Trust offers separate investment series, each
with different investment objectives and policies and each composed of different
types of assets and having different shareholders. The Quality Series seeks high
tax-exempt income consistent with preservation of capital and with consideration
given to capital gain by investing in obligations of the state of California and
its  political  subdivisions  the  interest on which is exempt from  Federal and
California personal income tax ("California tax-exempt securities") rated within
or of quality  comparable  to the three  highest  rating  categories  of Moody's
Investors Service  ("Moody's") or Standard & Poor's Rating Service ("S&P").  The
High-Yield  Series seeks the maximum amount of tax-exempt income consistent with
preservation  of  capital  and  with  consideration  given  to  capital  gain by
investing primarily in California  tax-exempt  securities which are rated in the
medium and lower rating  categories  of Moody's or S&P or which are unrated (the
Quality Series and the High-Yield Series are collectively  referred to herein as
"Series").
<PAGE>
Seligman Municipal Series Trust                                              -3-

                  It is expected that any further series to be established under
the  Declaration  and offered by the Trust will have  investment  objectives and
policies, types of assets, and shareholders that are different from those of the
Series and any other series currently established under the Declaration. Section
6.9 of the Declaration  provides that if the Trustees divide shares of the Trust
into two or more series of classes, then all provisions of the Declaration shall
apply equally to each series.

                  The income of each Series will  consist  primarily of interest
on  California  tax-exempt  securities,  and the balance will consist in part of
interest on certain  other  securities  which is excluded  from gross income for
Federal and California personal income tax purposes ("Non-California  tax-exempt
securities").

                  In  connection  with this opinion we have  assumed,  with your
consent,  that  each  series  of the Trust is a  separate  regulated  investment
company  taxable  under  Subchapter M of the Internal  Revenue Code of 1986,  as
amended (the "Code") and that dividends  paid by each Series will  constitute in
whole or in part  "exempt-interest  dividends"  within  the  meaning  of Section
852(b)(5) of the Code.

                  On the basis of the foregoing,  and our  consideration of such
matters as we have considered necessary, we advise you that, in our opinion, for
California personal income tax purposes:

                  (1)  Dividends  received  by a  shareholder  who is subject to
         California  personal income tax are generally  includible in California
         gross income. However, dividends received from each Series attributable
         to interest received by the Series  

<PAGE>
Seligman Municipal Series Trust                                              -4-

         during its taxable  year on  California  tax-exempt  securities  and on
         Non-California  tax-exempt  securities are excludible  from  California
         gross  income  provided  that at the end of each quarter of its taxable
         year,  at least 50  percent  of the  value of the  total  assets of the
         Series  consists of such  securities.  Section 17145 of the  California
         Revenue and  Taxation  Code.  Because  each Series will be treated as a
         separate regulated  investment company, the determination under Section
         17145 with  respect to a Series will be made solely on the basis of the
         proportion of the value of the total assets of that Series constituting
         California   tax-exempt   securities  and   Non-California   tax-exempt
         securities.

                  (2)  Capital  gain  dividends  of each  Series,  as defined in
         Section  852(b)(3) of the Code, will be taxed as long-term capital gain
         to a  shareholder.  Section  17088(a)  of the  California  Revenue  and
         Taxation Code.

                  We hereby  consent to the filing of this opinion as an exhibit
to the  Registration  Statement for the Trust.  In giving such consent we do not
thereby  admit that we are in the category of persons  whose consent is required
under Section 7 of the Securities Act of 1933, as amended.

                                              Very truly yours,

                                              /s/Sullivan & Cromwell
                                              Sullivan & Cromwell





                         HORACK, TALLEY, PHARR & LOWNDES

                            PROFESSIONAL ASSOCIATION

                           2600 ONE FIRST UNION CENTER
                            301 SOUTH COLLEGE STREET
                      CHARLOTTE, NORTH CAROLINA 28202-6038


                                January 21, 1999



Seligman Municipal Series Trust
100 Park Avenue
New York, New York  10017


Ladies and Gentlemen:


         With respect to Post-Effective Amendment No. 29 to the Registration
Statement on Form N-1A under the Securities and Exchange Act of 1933, as
amended, of Seligman Municipal Series Trust, of which Seligman North Carolina
Municipal Series is a series, we have reviewed the material relative North
Carolina Taxes in the Registration Statement. Subject to such review, our
opinion as delivered to you and as filed with the Securities and Exchange
Commission remains unchanged.

         We consent to the filing of this consent as an exhibit to the
Registration Statement and to the reference to us under the heading "North
Carolina Taxes." In giving such consent, we do not hereby admit that we are in
the category of persons whose consent is required under Section 7 of the
Securities Act of 1933, as amended.


                                        Very truly yours,


                                        Horack, Talley, Pharr & Lowndes



                                        /s/ Stephen L. Smith
                                        Stephen L. Smith


<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
        <NUMBER>021
        <NAME> SELIGMAN MUNICIPAL SERIES TRUST-CALIFORNA HIGH-YIELD CL A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-END>                               SEP-30-1998
<INVESTMENTS-AT-COST>                            59275
<INVESTMENTS-AT-VALUE>                           64020
<RECEIVABLES>                                      971
<ASSETS-OTHER>                                      79
<OTHER-ITEMS-ASSETS>                                 1
<TOTAL-ASSETS>                                   65071
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          304
<TOTAL-LIABILITIES>                                304
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         59860
<SHARES-COMMON-STOCK>                             8590<F1>
<SHARES-COMMON-PRIOR>                             8005<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            162
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          4745
<NET-ASSETS>                                     58374<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 3127<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (455)<F1>
<NET-INVESTMENT-INCOME>                           2672<F1>
<REALIZED-GAINS-CURRENT>                           316
<APPREC-INCREASE-CURRENT>                         1697
<NET-CHANGE-FROM-OPS>                             4882
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (2672)<F1>
<DISTRIBUTIONS-OF-GAINS>                         (255)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           1690<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (1343)<F1>
<SHARES-REINVESTED>                                238<F1>
<NET-CHANGE-IN-ASSETS>                            8564
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                          118
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              278<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    455<F1>
<AVERAGE-NET-ASSETS>                             55547<F1>
<PER-SHARE-NAV-BEGIN>                             6.61<F1>
<PER-SHARE-NII>                                    .32<F1>
<PER-SHARE-GAIN-APPREC>                            .22<F1>
<PER-SHARE-DIVIDEND>                             (.32)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.03)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               6.80<F1>
<EXPENSE-RATIO>                                    .82<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
        



</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
        <NUMBER>024
        <NAME> SELIGMAN MUNICIPAL SERIES TRUST-CALIFORNA HIGH-YIELD CL D
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-END>                               SEP-30-1998
<INVESTMENTS-AT-COST>                            59275
<INVESTMENTS-AT-VALUE>                           64020
<RECEIVABLES>                                      971
<ASSETS-OTHER>                                      79
<OTHER-ITEMS-ASSETS>                                 1
<TOTAL-ASSETS>                                   65071
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          304
<TOTAL-LIABILITIES>                                304
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         59860
<SHARES-COMMON-STOCK>                              940<F1>
<SHARES-COMMON-PRIOR>                              502<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            162
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          4745
<NET-ASSETS>                                      6393<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                  284<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    (87)<F1>
<NET-INVESTMENT-INCOME>                            197<F1>
<REALIZED-GAINS-CURRENT>                           316
<APPREC-INCREASE-CURRENT>                         1697
<NET-CHANGE-FROM-OPS>                             4882
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        (197)<F1>
<DISTRIBUTIONS-OF-GAINS>                          (17)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            582<F1>
<NUMBER-OF-SHARES-REDEEMED>                      (168)<F1>
<SHARES-REINVESTED>                                 24<F1>
<NET-CHANGE-IN-ASSETS>                            8564
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                          118
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               25<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     87<F1>
<AVERAGE-NET-ASSETS>                              5062<F1>
<PER-SHARE-NAV-BEGIN>                             6.61<F1>
<PER-SHARE-NII>                                    .26<F1>
<PER-SHARE-GAIN-APPREC>                            .22<F1>
<PER-SHARE-DIVIDEND>                             (.26)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.03)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               6.80<F1>
<EXPENSE-RATIO>                                   1.73<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
        



</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
        <NUMBER>011
        <NAME> SELIGMAN MUNICIPAL SERIES TRUST-CALIFORNA QUALITY CL A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-END>                               SEP-30-1998
<INVESTMENTS-AT-COST>                            82151
<INVESTMENTS-AT-VALUE>                           88733
<RECEIVABLES>                                     1404
<ASSETS-OTHER>                                     148
<OTHER-ITEMS-ASSETS>                                 1
<TOTAL-ASSETS>                                   90286
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          462
<TOTAL-LIABILITIES>                                462
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         80762
<SHARES-COMMON-STOCK>                            12142<F1>
<SHARES-COMMON-PRIOR>                            12445<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           2480
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          6582
<NET-ASSETS>                                     87522<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 4781<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (669)<F1>
<NET-INVESTMENT-INCOME>                           4112<F1>
<REALIZED-GAINS-CURRENT>                          2703
<APPREC-INCREASE-CURRENT>                          430
<NET-CHANGE-FROM-OPS>                             7321
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (4112)<F1>
<DISTRIBUTIONS-OF-GAINS>                         (411)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           1748<F1>
<NUMBER-OF-SHARES-REDEEMED>                     (2381)<F1>
<SHARES-REINVESTED>                                330<F1>
<NET-CHANGE-IN-ASSETS>                            1155
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                          197
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              433<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    669<F1>
<AVERAGE-NET-ASSETS>                             86593<F1>
<PER-SHARE-NAV-BEGIN>                             6.99<F1>
<PER-SHARE-NII>                                    .33<F1>
<PER-SHARE-GAIN-APPREC>                            .25<F1>
<PER-SHARE-DIVIDEND>                             (.33)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.03)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.21<F1>
<EXPENSE-RATIO>                                    .77<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
        



</TABLE>

<TABLE> <S> <C>


<ARTICLE> 6
<SERIES>
        <NUMBER>014
        <NAME> SELIGMAN MUNICIPAL SERIES TRUST-CALIFORNA QUALITY CL D
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-END>                               SEP-30-1998
<INVESTMENTS-AT-COST>                            82151
<INVESTMENTS-AT-VALUE>                           88733
<RECEIVABLES>                                     1404
<ASSETS-OTHER>                                     148
<OTHER-ITEMS-ASSETS>                                 1
<TOTAL-ASSETS>                                   90286
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          462
<TOTAL-LIABILITIES>                                462
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         80762
<SHARES-COMMON-STOCK>                              320<F1>
<SHARES-COMMON-PRIOR>                              240<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                           2480
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          6582
<NET-ASSETS>                                      2302<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                  109<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    (33)<F1>
<NET-INVESTMENT-INCOME>                             76<F1>
<REALIZED-GAINS-CURRENT>                          2703
<APPREC-INCREASE-CURRENT>                          430
<NET-CHANGE-FROM-OPS>                             7321
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                         (76)<F1>
<DISTRIBUTIONS-OF-GAINS>                           (9)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            380<F1>
<NUMBER-OF-SHARES-REDEEMED>                      (307)<F1>
<SHARES-REINVESTED>                                  7<F1>
<NET-CHANGE-IN-ASSETS>                            1155
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                          197
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                               10<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     33<F1>
<AVERAGE-NET-ASSETS>                              1966<F1>
<PER-SHARE-NAV-BEGIN>                             6.97<F1>
<PER-SHARE-NII>                                    .27<F1>
<PER-SHARE-GAIN-APPREC>                            .25<F1>
<PER-SHARE-DIVIDEND>                             (.27)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.03)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               7.19<F1>
<EXPENSE-RATIO>                                   1.68<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
        




</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
        <NUMBER>051
        <NAME> SELIGMAN MUNICIPAL SERIES TRUST-FLORIDA CL A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-END>                               SEP-30-1998
<INVESTMENTS-AT-COST>                            40311
<INVESTMENTS-AT-VALUE>                           43521
<RECEIVABLES>                                      942
<ASSETS-OTHER>                                     109
<OTHER-ITEMS-ASSETS>                                 1
<TOTAL-ASSETS>                                   44573
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          169
<TOTAL-LIABILITIES>                                169
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         40912
<SHARES-COMMON-STOCK>                             5265<F1>
<SHARES-COMMON-PRIOR>                             5390<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            282
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          3210
<NET-ASSETS>                                     42464<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 2313<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (426)<F1>
<NET-INVESTMENT-INCOME>                           1887<F1>
<REALIZED-GAINS-CURRENT>                           283
<APPREC-INCREASE-CURRENT>                         1624
<NET-CHANGE-FROM-OPS>                             3862
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (1887)<F1>
<DISTRIBUTIONS-OF-GAINS>                         (385)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            469<F1>
<NUMBER-OF-SHARES-REDEEMED>                      (717)<F1>
<SHARES-REINVESTED>                                123<F1>
<NET-CHANGE-IN-ASSETS>                             701
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                          400
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              212<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    426<F1>
<AVERAGE-NET-ASSETS>                             42396<F1>
<PER-SHARE-NAV-BEGIN>                             7.80<F1>
<PER-SHARE-NII>                                    .35<F1>
<PER-SHARE-GAIN-APPREC>                            .34<F1>
<PER-SHARE-DIVIDEND>                             (.35)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.07)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.07<F1>
<EXPENSE-RATIO>                                   1.00<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
        





</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
        <NUMBER>054
        <NAME> SELIGMAN MUNICIPAL SERIES TRUST-FLORIDA CL D
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-END>                               SEP-30-1998
<INVESTMENTS-AT-COST>                            40311
<INVESTMENTS-AT-VALUE>                           43521
<RECEIVABLES>                                      942
<ASSETS-OTHER>                                     109
<OTHER-ITEMS-ASSETS>                                 1
<TOTAL-ASSETS>                                   44573
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          169
<TOTAL-LIABILITIES>                                169
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         40912
<SHARES-COMMON-STOCK>                              240<F1>
<SHARES-COMMON-PRIOR>                              215<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            282
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          3210
<NET-ASSETS>                                      1940<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                  100<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    (32)<F1>
<NET-INVESTMENT-INCOME>                             68<F1>
<REALIZED-GAINS-CURRENT>                           283
<APPREC-INCREASE-CURRENT>                         1624
<NET-CHANGE-FROM-OPS>                             3862
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                         (68)<F1>
<DISTRIBUTIONS-OF-GAINS>                          (16)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            101<F1>
<NUMBER-OF-SHARES-REDEEMED>                       (83)<F1>
<SHARES-REINVESTED>                                  7<F1>
<NET-CHANGE-IN-ASSETS>                             701
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                          400
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                9<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     32<F1>
<AVERAGE-NET-ASSETS>                              1830<F1>
<PER-SHARE-NAV-BEGIN>                             7.81<F1>
<PER-SHARE-NII>                                    .29<F1>
<PER-SHARE-GAIN-APPREC>                            .34<F1>
<PER-SHARE-DIVIDEND>                             (.29)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.07)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.08<F1>
<EXPENSE-RATIO>                                   1.77<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
        





</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
        <NUMBER>041
        <NAME> SELIGMAN MUNICIPAL SERIES TRUST-NORTH CAROLINA CL A
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-END>                               SEP-30-1998
<INVESTMENTS-AT-COST>                            30769
<INVESTMENTS-AT-VALUE>                           33219
<RECEIVABLES>                                      590
<ASSETS-OTHER>                                     124
<OTHER-ITEMS-ASSETS>                                 1
<TOTAL-ASSETS>                                   33934
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          120
<TOTAL-LIABILITIES>                                120
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         30898
<SHARES-COMMON-STOCK>                             3898<F1>
<SHARES-COMMON-PRIOR>                             4061<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            466
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          2450
<NET-ASSETS>                                     32358<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 1771<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                   (342)<F1>
<NET-INVESTMENT-INCOME>                           1429<F1>
<REALIZED-GAINS-CURRENT>                           472
<APPREC-INCREASE-CURRENT>                          829
<NET-CHANGE-FROM-OPS>                             2776
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (1429)<F1>
<DISTRIBUTIONS-OF-GAINS>                         (259)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                            269<F1>
<NUMBER-OF-SHARES-REDEEMED>                      (548)<F1>
<SHARES-REINVESTED>                                116<F1>
<NET-CHANGE-IN-ASSETS>                            (87)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                          263
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              162<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    342<F1>
<AVERAGE-NET-ASSETS>                             32411<F1>
<PER-SHARE-NAV-BEGIN>                             8.05<F1>
<PER-SHARE-NII>                                    .36<F1>
<PER-SHARE-GAIN-APPREC>                            .31<F1>
<PER-SHARE-DIVIDEND>                             (.36)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.06)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.30<F1>
<EXPENSE-RATIO>                                   1.05<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class A only. All other data are fund level.
</FN>
        



</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
        <NUMBER>044
        <NAME> SELIGMAN MUNICIPAL SERIES TRUST-NORTH CAROLINA CL D
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                  12-MOS
<FISCAL-YEAR-END>                          SEP-30-1998
<PERIOD-END>                               SEP-30-1998
<INVESTMENTS-AT-COST>                            30769
<INVESTMENTS-AT-VALUE>                           33219
<RECEIVABLES>                                      590
<ASSETS-OTHER>                                     124
<OTHER-ITEMS-ASSETS>                                 1
<TOTAL-ASSETS>                                   33934
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          120
<TOTAL-LIABILITIES>                                120
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                         30898
<SHARES-COMMON-STOCK>                              176<F1>
<SHARES-COMMON-PRIOR>                              151<F1>
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                            466
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                          2450
<NET-ASSETS>                                      1456<F1>
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                   69<F1>
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    (23)<F1>
<NET-INVESTMENT-INCOME>                             46<F1>
<REALIZED-GAINS-CURRENT>                           472
<APPREC-INCREASE-CURRENT>                          829
<NET-CHANGE-FROM-OPS>                             2776
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                         (46)<F1>
<DISTRIBUTIONS-OF-GAINS>                          (10)<F1>
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                             52<F1>
<NUMBER-OF-SHARES-REDEEMED>                       (32)<F1>
<SHARES-REINVESTED>                                  5<F1>
<NET-CHANGE-IN-ASSETS>                            (87)
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                          263
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                                6<F1>
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                     23<F1>
<AVERAGE-NET-ASSETS>                              1266<F1>
<PER-SHARE-NAV-BEGIN>                             8.05<F1>
<PER-SHARE-NII>                                    .30<F1>
<PER-SHARE-GAIN-APPREC>                            .31<F1>
<PER-SHARE-DIVIDEND>                             (.30)<F1>
<PER-SHARE-DISTRIBUTIONS>                        (.06)<F1>
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               8.30<F1>
<EXPENSE-RATIO>                                   1.82<F1>
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
<FN>
<F1>Class D only. All other data are fund level.
</FN>
        


</TABLE>


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