MENTOR FUNDS
497, 1995-10-10
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<PAGE>
PROSPECTUS                                                      MAY 30, 1995, AS
                                                      REVISED SEPTEMBER 20, 1995
                                THE MENTOR FUNDS
     The Mentor Funds, an open-end management investment company, is offering
shares of eight different investment portfolios by this Prospectus: Mentor
Growth Portfolio, Mentor Capital Growth Portfolio, Mentor Strategy Portfolio (a
total return fund), Mentor Income and Growth Portfolio, Mentor Perpetual Global
Portfolio (a global growth fund), Mentor Quality Income Portfolio, Mentor
Municipal Income Portfolio, and Mentor Short-Duration Income Portfolio. CERTAIN
OF THE PORTFOLIOS MAY USE "LEVERAGE" -- THAT IS, THEY MAY BORROW MONEY TO
PURCHASE ADDITIONAL PORTFOLIO SECURITIES, WHICH INVOLVES SPECIAL RISKS.
     The Mentor Funds provides investors an opportunity to design their own
investment programs by investing in a variety of Portfolios offering a wide
array of investment strategies. Each Portfolio pursues its investment objectives
through the investment policies described in this Prospectus.
     This Prospectus sets forth concisely the information about The Mentor Funds
that a prospective investor should know before investing. Please read this
Prospectus and retain it for future reference. You can find more detailed
information in the May 30, 1995 Statement of Additional Information, as amended
from time to time. For a free copy of the Statement or for other information,
please call 1-800-382-0016. The Statement has been filed with the Securities and
Exchange Commission and is incorporated into this Prospectus by reference. The
address of The Mentor Funds is P.O. Box 1357, Richmond, Virginia 23286-0109.
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE
     SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
      PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
              REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

<PAGE>
SUMMARY OF PORTFOLIO EXPENSES
     Expenses are one of several factors to consider when investing in a
Portfolio. The following tables summarize your maximum transaction costs from
investing in each of the Portfolios. The Examples show the cumulative expenses
attributable to a hypothetical $1,000 investment in each of the Portfolios over
specified periods.
<TABLE>
<CAPTION>
                                                                                                   CLASS A     CLASS B
                                                                                                   SHARES      SHARES
<S>                                                                                               <C>          <C>
SHAREHOLDER TRANSACTION EXPENSES
Maximum Sales Load Imposed on Purchases (as a percentage of offering price)
  Mentor Growth Portfolio......................................................................        5.75%     None
  Mentor Capital Growth Portfolio..............................................................        5.75%     None
  Mentor Strategy Portfolio....................................................................        5.75%     None
  Mentor Income and Growth Portfolio...........................................................        5.75%     None
  Mentor Perpetual Global Portfolio............................................................        5.75%     None
  Mentor Quality Income Portfolio..............................................................        4.75%     None
  Mentor Municipal Income Portfolio............................................................        4.75%     None
  Mentor Short-Duration Income Portfolio.......................................................        1.00%     None
Maximum Sales Load Imposed on Reinvested Dividends.............................................        None      None
Exchange Fee...................................................................................        None      None
Contingent Deferred Sales Charge (as a percentage of
     the lower of the original purchase price or redemption proceeds of shares redeemed)
     Class A Shares(1):........................................................................        None(1)
     Class B Shares(2):
</TABLE>

<TABLE>
<CAPTION>
                           CONTINGENT DEFERRED SALES
                           CHARGE AS A PERCENTAGE OF     CONTINGENT DEFERRED SALES
                          APPLICABLE AMOUNT REDEEMED     CHARGE AS A PERCENTAGE OF
                           (GROWTH, CAPITAL GROWTH,     APPLICABLE AMOUNT REDEEMED
                             STRATEGY, INCOME AND       (QUALITY INCOME, MUNICIPAL
      YEAR SINCE              GROWTH, AND GLOBAL        INCOME, AND SHORT-DURATION
 PURCHASE PAYMENT MADE          PORTFOLIOS)(3)             INCOME PORTFOLIOS)(3)
<S>                       <C>                           <C>
First                                4.0%                          4.0%
Second                               4.0%                          4.0%
Third                                3.0%                          3.0%
Fourth                               2.0%                          2.0%
Fifth                                1.0%                          1.0%
Sixth                                None                          1.0%
Seventh and Thereafter               None                          None
</TABLE>
 
(1) A contingent deferred sales charge ("CDSC") of 1.00% is assessed on Class A
    shares that were purchased without an initial sales charge as part of an
    investment of over $1 million that are redeemed within one year of purchase.
(2) A CDSC of 1.00% is assessed on Class B shares that are purchased pursuant to
    certain asset-allocation plans and that are not otherwise subject to the
    CDSC shown in the table, if those shares are redeemed within one year of
    purchase. Consult Mentor Distributors, Inc.
(3) The amount redeemed is computed as the lesser of the current net asset value
    of the redemption amount, excluding reinvested distributions, and the
    original purchase amount. See "How to Buy Shares -- Class B Shares."
                                       2


<PAGE>
         ANNUAL PORTFOLIO OPERATING EXPENSES
         (AS A PERCENTAGE OF AVERAGE NET ASSETS)
<TABLE>
<CAPTION>
                                                            INCOME                                          SHORT-
                                    CAPITAL                   AND                   QUALITY    MUNICIPAL   DURATION
                        GROWTH      GROWTH     STRATEGY     GROWTH      GLOBAL      INCOME      INCOME      INCOME
                       PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO
<S>                    <C>         <C>         <C>         <C>         <C>         <C>         <C>         <C>
CLASS A SHARES
Management Fees
(after waiver)(1)...      0.70%       0.80%       0.85%       0.75%       1.10%       0.50%(2)    0.60%      0.00%(2)
12b-1 Fees..........      None        None        None        None        None        None        None       None
Shareholder Service
Fees................      0.25%       0.25%       0.25%       0.25%       0.25%       0.25%       0.25%      0.25%
Total Other Expenses
(after waiver)(1)...      0.37%       0.40%       0.37%       0.37%       0.65%       0.30%       0.30%      0.61%
  Total Portfolio
    Operating
    Expenses(1).....      1.32%       1.45%       1.47%       1.37%       2.00%       1.05%       1.15%      0.86%
<CAPTION>
                                                            INCOME                                          SHORT-
                                    CAPITAL                   AND                   QUALITY    MUNICIPAL   DURATION
                        GROWTH      GROWTH     STRATEGY     GROWTH      GLOBAL      INCOME      INCOME      INCOME
                       PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO   PORTFOLIO
<S>                    <C>         <C>         <C>         <C>         <C>         <C>         <C>         <C>
CLASS B SHARES
Management Fees
(after waiver)(1)...      0.70%       0.80%       0.85%       0.75%       1.10%       0.50%(2)    0.60%      0.00%(2)
12b-1 Fees..........      0.75%       0.75%       0.75%       0.75%       0.75%       0.50%       0.50%      0.30%
Shareholder Service
Fees................      0.25%       0.25%       0.25%       0.25%       0.25%       0.25%       0.25%      0.25%
Total Other Expenses
(after waiver)(1)...      0.37%       0.40%       0.37%       0.37%       0.65%       0.30%       0.30%      0.61%
  Total Portfolio
    Operating
    Expenses(1).....      2.07%       2.20%       2.22%       2.12%       2.75%       1.55%       1.65%      1.16%
</TABLE>

         (1) The amounts shown in the tables reflect the Total Other Expenses
             and Total Portfolio Operating Expenses each of the Portfolios
             expects to incur during the current fiscal year. If Total Portfolio
             Operating Expenses of any Portfolio materially exceed the amounts
             shown above, Mentor Investment Group, Inc. intends to bear the
             Portfolio's expenses to that extent. In the information presented
             below where a Portfolio's expenses for the last fiscal year were
             reduced by fee waivers, amounts shown in parenthesis reflect the
             amounts of those expenses without giving effect to the fee waivers.
             For their last fiscal year, the Portfolios' Total Other Expenses
             for Class A shares were as follows: Capital Growth
             Portfolio -- 0.65%; Income and Growth Portfolio -- 0.75%; Global
             Portfolio -- 1.84%; Quality Income Portfolio -- 0.53% (0.54%);
             Municipal Income -- 0.48%. For their last fiscal year, the
             Portfolios' Total Other Expenses for Class B shares were as
             follows: Growth Portfolio -- 0.31%; Capital Growth
             Portfolio -- 0.66%; Strategy Portfolio -- 0.34% (0.42)%; Income and
             Growth Portfolio -- 0.69%; Global Portfolio, -- 1.79% (1.84%);
             Quality Income Portfolio -- 0.53% (0.55%); Municipal Income
             Portfolio -- 0.51%; Short-Duration Income Portfolio -- 0.74%
             (0.84%). Total Portfolio Operating Expenses for each of the
             Portfolios during its last fiscal year were as follows: Growth
             Portfolio: Class A -- NA; Class B -- 2.01%; Capital Growth
             Portfolio: Class A -- 1.70%; Class B -- 2.46%; Strategy Portfolio:
             Class A -- NA; Class B -- 2.19% (2.27%); Income and Growth
             Portfolio: Class A -- 1.75%; Class B -- 2.44%; Quality Income
             Portfolio: Class A -- 1.38% (1.39%); Class B -- 1.88%; (1.90%);
             Municipal Income Portfolio: Class A -- 1.24% (1.33%); Class
             B -- 1.74% (1.86%); Short-Duration Income Portfolio: Class A -- NA;
             Class B -- 1.29% (1.89%); Global Portfolio: Class A -- 2.09%
             (3.18%); Class B -- 2.79% (3.93%). For the last fiscal year, the
             investment adviser to the Municipal Income and Global Portfolios
             waived some or all of its Management Fees in respect of those
             Portfolios, such that the Portfolios paid Management Fees at the
             following rates: Municipal Income Portfolio -- 0.51%; Global
             Portfolio -- 0.00%; in the absence of those waivers, the
             Portfolios' Management Fees would have been 0.60% and 1.10%,
             respectively.
         (2) In order to limit the Portfolios' operating expenses, the
             investment advisers of each of the Quality Income and
             Short-Duration Income Portfolios have agreed to limit their
             compensation during the current fiscal year to the levels shown in
             the tables; in the absence of such limitations, these Portfolios'
             Management Fees and Total Portfolio Operating Expenses would be as
             follows: Quality Income Portfolio -- Class A -- 0.60% and 1.15%,
             respectively; Class B -- 0.60% and 1.65%, respectively;
             Short-Duration Income Portfolio -- Class A -- 0.50% and 1.36%,
             respectively; Class B -- 0.50% and 1.66%, respectively.
                                       3

<PAGE>
     EXAMPLES
          You would pay the following expenses on a $1,000 investment, assuming
     5% annual return and no redemption at the end of each period:
<TABLE>
<CAPTION>
                                        1 YEAR               3 YEARS               5 YEARS               10 YEARS
                                  CLASS A    CLASS B    CLASS A    CLASS B    CLASS A    CLASS B    CLASS A    CLASS B
<S>                               <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Growth Portfolio...............     $70        $21       $  97       $65       $ 126      $ 111      $ 207      $ 240
Capital Growth Portfolio.......      71         22         101        69         132        118        221        253
Strategy Portfolio.............      72         23         101        69         133        119        223        255
Income and Growth Portfolio....      71         22          98        66         128        114        213        245
Global Portfolio...............      77         28         117        85         159        145        277        308
Quality Income Portfolio.......      58         16          79        49         103         84        170        185
Municipal Income Portfolio.....      59         17          82        52         108         90        181        195
Short-Duration Income
  Portfolio....................      19         12          37        37          57         64        115        141
</TABLE>

          You would pay the following expenses on a $1,000 investment assuming
     redemption at the end of each period:
<TABLE>
<CAPTION>
                                  CLASS A    CLASS B    CLASS A    CLASS B    CLASS A    CLASS B    CLASS A    CLASS B
<S>                               <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
Growth Portfolio...............     $70        $61       $  97       $95       $ 126      $ 121      $ 207      $ 240
Capital Growth Portfolio.......      71         62         101        99         132        128        221        253
Strategy Portfolio.............      72         63         101        99         133        129        223        255
Income and Growth Portfolio....      71         62          98        96         128        124        213        245
Global Portfolio...............      77         68         117       115         159        155        277        308
Quality Income Portfolio.......      58         56          79        79         103         94        170        185
Municipal Income Portfolio.....      59         57          82        82         108        100        181        195
Short-Duration Income
  Portfolio....................      19         52          37        67         5 7         74        115        141
</TABLE>

          The tables are provided to help you understand the expenses of
investing in each of the Portfolios and your share of the operating expenses of
each of the Portfolios. The amounts shown in the table reflect the expenses each
of the Portfolios expects to incur during the current fiscal year. THE EXAMPLES
SHOULD NOT BE CONSIDERED A REPRESENTATION OF FUTURE PERFORMANCE; ACTUAL EXPENSES
MAY VARY. Long-term Class B shareholders may pay more than the economic
equivalent of the maximum front-end sales charge permitted by the rules of the
National Association of Securities Dealers, Inc.

                                       4



<PAGE>
                              FINANCIAL HIGHLIGHTS
                 MENTOR CAPITAL GROWTH, MENTOR QUALITY INCOME,
             MENTOR MUNICIPAL INCOME, MENTOR INCOME AND GROWTH, AND
                       MENTOR PERPETUAL GLOBAL PORTFOLIOS
                (FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD)


              The following table has been audited by KPMG Peat Marwick LLP, The
Mentor Funds' independent auditors. Their report dated November 11, 1994 on the
Portfolios' financial statements for the period ended September 30, 1994 is
included in the Annual Report dated September 30, 1994, which is incorporated by
reference. This table should be read in conjunction with each Portfolio's
financial statements and notes thereto, which are included in the Statement of
Additional Information and which may be obtained free of charge from The Mentor
Funds. Until April 12, 1995, Mentor Quality Income Portfolio was known as
"Cambridge Government Income Portfolio"; until that time, the Portfolio was
required, among other things, to invest at least 65% of its assets in U.S.
Government securities. CLASS A SHARES

<TABLE>
<CAPTION>
                                                                                                        MENTOR MUNICIPAL
                                                                                                        INCOME PORTFOLIO
                                                                                                       (FORMERLY CAMBRIDGE
                              MENTOR CAPITAL GROWTH PORTFOLIO     MENTOR QUALITY INCOME PORTFOLIO       MUNICIPAL INCOME
                                (FORMERLY CAMBRIDGE CAPITAL        (FORMERLY CAMBRIDGE GOVERNMENT          PORTFOLIO)
                                     GROWTH PORTFOLIO)                   INCOME PORTFOLIO)                 YEAR ENDED
                                 YEAR ENDED SEPTEMBER 30,             YEAR ENDED SEPTEMBER 30,            SEPTEMBER 30,
                               1994        1993        1992*       1994         1993        1992*       1994        1993
<S>                           <C>         <C>         <C>         <C>         <C>          <C>         <C>         <C>
NET ASSET VALUE PER SHARE,
 BEGINNING OF PERIOD......    $ 15.26     $ 14.21     $ 14.18     $ 14.04     $  14.39     $ 14.30     $ 16.05     $ 14.76
 Income from investment
   operations
   Net investment income
     (loss)...............       0.09        0.14        0.08        0.84         1.06        0.44        0.82        0.92
   Net realized and
     unrealized gain
     (loss) on
     investments..........      (0.30)       1.02        0.03       (1.30)       (0.31)       0.09       (1.54)       1.32
   Total from investment
     operations...........      (0.21)       1.16        0.11       (0.46)        0.75        0.53       (0.72)       2.24
 Less distributions
   Dividends from
     income...............      (0.04)      (0.11)      (0.08)      (0.83)       (1.06)      (0.44)      (0.81)      (0.92)
   Distributions from
     capital gains........      (0.13)         --          --          --           --          --       (0.10)         --
   Distributions in excess
     of net investment
     income...............         --          --          --          --        (0.04)         --          --       (0.03)
NET ASSET VALUE PER SHARE,
 END OF PERIOD............    $ 14.88     $ 15.26     $ 14.21     $ 12.75     $  14.04     $ 14.39     $ 14.42     $ 16.05
Total return..............      (1.37%)      8.21%       0.78%      (3.39%)       5.41%       3.37%      (4.83%)     16.00%
Ratios to Average Net
 Assets(a)
 Expenses.................       1.70%       1.49%       1.14%       1.38%        1.04%       0.36%       1.24%       0.71%
 Net investment income
   (loss).................       0.53%       0.96%       1.54%       6.33%        7.31%       8.00%       5.43%       5.92%
 Expense adjustment(b)....         --        0.10%       0.29%       0.01%        0.18%       0.85%       0.09%       0.68%
Supplemental Data
 Net assets, end of period
   (000 omitted)..........    $21,181     $31,360     $20,864     $30,142     $ 47,780     $36,740     $25,056     $29,245
 Portfolio turnover
   rate...................        149%        192%         61%        455%         102%          9%         87%         88%
<CAPTION>



                                         MENTOR INCOME AND
                                              GROWTH            MENTOR PERPETUAL
                                        PORTFOLIO (FORMERLY     GLOBAL PORTFOLIO
                                         CAMBRIDGE INCOME          (FORMERLY
                                            AND GROWTH          CAMBRIDGE GLOBAL
                                            PORTFOLIO)          PORTFOLIO) YEAR
                                            YEAR ENDED               ENDED
                                           SEPTEMBER 30,         SEPTEMBER 30,
                             1992*       1994       1993**          1994***
<S>                           <C>       <C>         <C>         <C>
NET ASSET VALUE PER SHARE,
 BEGINNING OF PERIOD......  $ 14.29     $ 14.88     $ 14.14         $  14.18
 Income from investment
   operations
   Net investment income
     (loss)...............     0.32        0.31        0.09           (0.01)
   Net realized and
     unrealized gain
     (loss) on
     investments..........     0.47        0.64        0.73             0.06
   Total from investment
     operations...........     0.79        0.95        0.82             0.05
 Less distributions
   Dividends from
     income...............    (0.32)      (0.30)      (0.08)              --
   Distributions from
     capital gains........       --       (0.26)         --               --
   Distributions in excess
     of net investment
     income...............       --          --          --               --
NET ASSET VALUE PER SHARE,
 END OF PERIOD............  $ 14.76     $ 15.27     $ 14.88         $  14.23
Total return..............     5.34%       6.54%       5.54%            0.35%
Ratios to Average Net
 Assets(a)
 Expenses.................     0.00%       1.75%       1.56%            2.09%
 Net investment income
   (loss).................     6.21%       2.20%       2.35%           (0.10%)
 Expense adjustment(b)....     1.26%         --        0.38%            1.09%
Supplemental Data
 Net assets, end of period
   (000 omitted)..........  $18,801     $17,773     $ 9,849         $  8,882
 Portfolio turnover
   rate...................        0%         78%         13%               2%
</TABLE>
 
           * Reflects operations for the period from April 29, 1992 (date of
             initial public investment) to September 30, 1992.
          ** Reflects operations for the period from May 24, 1993 (date of
             initial public investment) to September 30, 1993.
         *** Reflects operations for the period from March 29, 1994 (date of
             initial public investment) to September 30, 1994.
          (a) Computed on an annualized basis.
          (b) Increase/decrease in above expense/income ratios due to waivers or
              reimbursements of expenses.
                                       5

<PAGE>
         CLASS B SHARES
<TABLE>
<CAPTION>
                                                                                                        MENTOR MUNICIPAL
                                                                                                        INCOME PORTFOLIO
                                                                                                      (FORMERLY CAMBRIDGE
                              MENTOR CAPITAL GROWTH PORTFOLIO     MENTOR QUALITY INCOME PORTFOLIO       MUNICIPAL INCOME
                                (FORMERLY CAMBRIDGE CAPITAL        (FORMERLY CAMBRIDGE GOVERNMENT           PORTFOLIO)
                                     GROWTH PORTFOLIO)                   INCOME PORTFOLIO)                 YEAR ENDED
                                 YEAR ENDED SEPTEMBER 30,             YEAR ENDED SEPTEMBER 30,            SEPTEMBER 30,
                               1994        1993        1992*       1994         1993        1992*       1994        1993
<S>                           <C>         <C>         <C>         <C>         <C>          <C>         <C>         <C>
NET ASSET VALUE PER SHARE,
 BEGINNING OF PERIOD......    $ 15.23     $ 14.22     $ 14.18     $ 14.06     $  14.40     $ 14.30     $ 16.06     $ 14.78
 Income from investment
   operations
   Net investment income
     (loss)...............      (0.04)       0.05        0.46        0.82         0.99        0.41        0.74        0.82
   Net realized and
     unrealized gain
     (loss) on
     investments..........      (0.26)       1.02        0.04       (1.37)       (0.31)       0.10       (1.54)       1.32
   Total from investment
     operations...........      (0.30)       1.07        0.50       (0.55)        0.68        0.51       (0.80)       2.14
 Less distributions
   Dividends from
     income...............         --       (0.05)      (0.46)      (0.75)       (0.99)      (0.41)      (0.73)      (0.82)
   Distributions from
     capital gains........      (0.13)         --          --          --           --          --       (0.10)         --
   Distributions in excess
     of net investment
     income...............         --       (0.01)         --          --        (0.03)         --          --       (0.04)
NET ASSET VALUE PER SHARE,
 END OF PERIOD............    $ 14.80     $ 15.23     $ 14.22     $ 12.76     $  14.06     $ 14.40     $ 14.43     $ 16.06
Total return..............      (2.00%)      7.52%       0.61%      (3.97%)       4.86%       3.24%      (5.34%)     15.27%
Ratios to Average Net
 Assets(a)
 Expenses.................       2.46%       2.24%       1.86%       1.88%        1.54%       0.83%       1.74%       1.21%
 Net investment income
   (loss).................      (0.22%)      0.21%       0.83%       6.21%        6.81%       7.53%       4.93%       5.42%
 Expense adjustment(b)....         --        0.10%       0.30%       0.02%        0.18%       0.84%       0.12%       0.68%
Supplemental Data
 Net assets, end of period
   (000 omitted)..........    $41,106     $57,030     $25,468     $77,888     $127,346     $65,661     $46,157     $50,976
 Portfolio turnover
   rate...................        149%        192%         61%        455%         102%          9%         87%         88%
<CAPTION>
 


                                         MENTOR INCOME AND
                                              GROWTH           MENTOR PERPETUAL
                                        PORTFOLIO (FORMERLY    GLOBAL PORTFOLIO
                                         CAMBRIDGE INCOME          (FORMERLY
                                            AND GROWTH          CAMBRIDGE GLOBAL
                                            PORTFOLIO)             PORTFOLIO)
                                            YEAR ENDED             YEAR ENDED
                                           SEPTEMBER 30,         SEPTEMBER 30,
                             1992*       1994       1993**          1994***
<S>                           <C>       <C>         <C>         <C>
NET ASSET VALUE PER SHARE,
 BEGINNING OF PERIOD......  $ 14.29     $ 14.91     $ 14.14         $  14.18
 Income from investment
   operations
   Net investment income
     (loss)...............     0.29        0.21        0.05           (0.04)
   Net realized and
     unrealized gain
     (loss) on
     investments..........     0.49        0.61        0.77             0.01
   Total from investment
     operations...........     0.78        0.82        0.82            (0.03)
 Less distributions
   Dividends from
     income...............    (0.29)      (0.19)      (0.05)              --
   Distributions from
     capital gains........       --       (0.26)         --               --
   Distributions in excess
     of net investment
     income...............       --          --          --               --
NET ASSET VALUE PER SHARE,
 END OF PERIOD............  $ 14.78     $ 15.28     $ 14.91         $  14.15
Total return..............     5.28%       5.66%       5.54%           (0.21%)
Ratios to Average Net
 Assets(a)
 Expenses.................     0.50%       2.44%       2.31%            2.79%
 Net investment income
   (loss).................     5.80%       1.51%       1.60%           (0.82%)
 Expense adjustment(b)....     1.26%         --        0.38%           (1.14%)
Supplemental Data
 Net assets, end of period
   (000 omitted)..........  $24,265     $43,219     $18,127         $  7,987
 Portfolio turnover
   rate...................        0%         78%         13%               2%
</TABLE>
 
           * Reflects operations for the period from April 29, 1992 (date of
             initial public investment) to September 30, 1992.
          ** Reflects operations for the period from May 24, 1993 (date of
             initial public investment) to September 30, 1993.
         *** Reflects operations for the period from March 29, 1994 (date of
             initial public investment) to September 30, 1994.
          (a) Computed on an annualized basis.
          (b) Increase/decrease in above expense/income ratios due to waivers or
              reimbursements of expenses.
                                       6
 
<PAGE>
                              FINANCIAL HIGHLIGHTS
                      MENTOR GROWTH, MENTOR STRATEGY, AND
                    MENTOR SHORT-DURATION INCOME PORTFOLIOS
                (FOR A SHARE OUTSTANDING THROUGHOUT EACH PERIOD)

              The following table has been audited by KPMG Peat Marwick LLP.
Their report dated February 3, 1995 on the following Portfolios' financial
statements for the period ended December 31, 1994 is included in the Annual
Report dated December 31, 1994. This table should be read in conjunction with
each Portfolio's financial statements and notes thereto, which are included in
the Statement of Additional Information and which may be obtained free of charge
from The Mentor Funds. The Growth, Strategy, and Short-Duration Income
Portfolios are successors to the Mentor Growth, Strategy, and Short-Duration
Income Funds, each of which was a series of shares of beneficial interest of
Mentor Series Trust, a Massachusetts business trust. Each of those Funds offered
only one class of shares during the period for which information is presented.

<TABLE>
<CAPTION>
                                                         MENTOR GROWTH PORTFOLIO
                                                                                                                   NINE MOS.
                YEAR ENDED    YEAR ENDED    YEAR ENDED    YEAR ENDED    YEAR ENDED    YEAR ENDED    YEAR ENDED      ENDED
               DECEMBER 31,  DECEMBER 31,  DECEMBER 31,  DECEMBER 31,  DECEMBER 31,  DECEMBER 31,  DECEMBER 31,    DECEMBER
                   1994          1993          1992          1991          1990          1989          1988        31, 1987
<S>            <C>           <C>           <C>           <C>           <C>           <C>           <C>            <C>
Per Share
 Operating
 Performance
NET ASSET
 VALUE,
 BEGINNING
 OF
 PERIOD.....     $  13.78      $  12.81      $  12.16      $   8.37      $   9.63      $   8.54      $   7.45      $   9.91
Net
 investment
 income
 (loss).....        (0.15)        (0.08)        (0.06)        (0.09)         0.02          0.13          0.01         (0.01)
Net realized
 and
 unrealized
 gain (loss)
 on
 investments..      (0.47)         2.07          1.94          4.30         (1.10)         1.35          1.24         (2.32)
Total from
 investment
 operations...      (0.62)         1.99          1.88          4.21         (1.08)         1.48          1.25         (2.33)
Less
Distributions
 Dividends
   from net
  investment
   income...           --            --            --            --         (0.05)        (0.12)        (0.01)           --
 Distributions
   from
   capital
   gains....        (1.00)        (1.02)        (1.23)        (0.42)        (0.13)        (0.27)        (0.15)        (0.13)
 Distributions
   in excess
   of
   capital
   gains....        (0.01)           --            --            --            --            --            --            --
Total
distributions.      (1.01)        (1.02)        (1.23)        (0.42)        (0.18)        (0.39)        (0.16)        (0.13)
NET ASSET
 VALUE, END
 OF
 PERIOD.....     $  12.15      $  13.78      $  12.81      $  12.16      $   8.37      $   9.63      $   8.54      $   7.45
Total
 return.....        (4.48%)       15.60%        15.46%        50.30%       (11.21%)       17.33%        16.78%       (23.47%)
Ratios/Supplemental
 Data
Net assets,
 end of
 period, (in
 000's).....     $190,126      $186,978      $136,053      $108,719      $ 83,540      $107,315      $ 96,425      $ 92,763
Ratio of
 expenses to
 average net
 assets.....         2.01%         2.02%         2.05%         2.17%         2.25%         2.24%         2.19%         2.18%(a)
Ratio of net
 investment
 income
 (loss) to
 average net
 assets.....        (1.20%)       (1.12%)       (0.76%)       (0.80%)        0.26%         1.36%         0.16%        (0.19%)(a)
 Portfolio
   turnover
   rate.....           77%           64%           50%           40%           50%           26%           31%           33%
<CAPTION>
                                                                                        MENTOR SHORT-
                                                                  MENTOR STRATEGY         DURATION
                                                                     PORTFOLIO             INCOME
                                       YEAR                       YEAR                   PORTFOLIO
                                      ENDED        PERIOD         ENDED      10/29/93*     PERIOD
                                      MARCH     4/16/85* TO     DECEMBER        TO      04/29/94* TO
                                     31, 1987     3/31/86       31, 1994     12/31/93     12/31/94
<S>                                  <C>        <C>            <C>           <C>        <C>
Per Share Operating Performance
NET ASSET VALUE, BEGINNING
 OF PERIOD.......................    $   9.34     $   6.67      $   12.70    $  12.50     $  12.50
Net investment income (loss).....       (0.01)       (0.03)         (0.06)         --         0.41
Net realized and unrealized
 gain (loss) on investments......        0.92         2.70          (0.40)       0.20        (0.29)
Total from investment operations.        0.91         2.67          (0.46)       0.20         0.12
Less
Distribution
 Dividends from net investment
   income........................          --           --             --          --        (0.41)

 Distribution from capital gains.       (0.34)          --             --          --        (0.03)

 Distribution in excess of capital
   gains.........................          --           --
Total distribution ..............       (0.34)          --             --          --        (0.44)
NET ASSET VALUE, END OF PERIOD...        9.91     $   9.34      $   12.24    $  12.70     $  12.18
Total return.....................        9.74%       41.77%         (3.61%)      1.60%        0.95%
Ratios/Supplemental Data
Net assets, end of period,
 (in 000's)......................    $113,317     $ 63,767      $ 179,274    $122,177     $ 17,144
Ratio of expenses to average net
 assets..........................        2.16%        2.43%(a)       2.19%       2.06%(a)     1.29%(a)
Ratio of net investment income
  (loss) to average net assets...       (0.18%)      (0.53%)(a)     (0.54%)      0.08%(a)     4.90%(a)
  Portfolio turnover rate........          34%          35%           143%          0%         166%
</TABLE>

          * Commencement of operations
         (a) Determined on an annualized basis
                                       7





<PAGE>
                       INVESTMENT OBJECTIVES AND POLICIES

     The Mentor Funds is offering shares of eight Portfolios by this Prospectus.
Each Portfolio has a different investment objective or objectives which it
pursues through the investment policies described below. The differences in
objectives and policies among the Portfolios can be expected to affect the
investment return of each Portfolio and the degree of market and financial risk
of an investment in each Portfolio. For a discussion of certain investment
practices in which the Portfolios may engage, and the risks they may entail, see
"Other Investment Practices" below. Except for the investment policies
designated in this Prospectus or the Statement of Additional Information as
fundamental, the investment policies described herein are not fundamental and
may be changed by approval of the Trustees without shareholder approval. There
can, of course, be no assurance that any Portfolio will achieve its investment
objective. The investment objectives of the Portfolios, other than those of the
Strategy Portfolio and the Short-Duration Income Portfolio, are fundamental
policies and may not be changed without shareholder approval.
     Any percentage limitation on a Portfolio's investments will apply only at
the time of investment; a Portfolio would not be considered to have violated any
such limitation, unless an excess or deficiency occurs or exists immediately
after, and as a result of, an investment. In addition, a Portfolio will not
necessarily dispose of a security when its rating is reduced below any minimum
rating applicable to investments by the Portfolio, although the investment
adviser or sub-adviser of the Portfolio will monitor the investment to determine
whether continued investment in the security will assist in meeting the
Portfolio's investment objective.
MENTOR GROWTH PORTFOLIO (FORMERLY, MENTOR GROWTH FUND)
INVESTMENT ADVISER: CHARTER ASSET MANAGEMENT, INC. ("CHARTER")
     The Growth Portfolio's investment objective is long-term capital growth.
Although the Portfolio may receive current income from dividends, interest, and
other sources, income is only an incidental consideration.
     The Portfolio attempts to achieve long-term capital growth by investing in
a diversified portfolio of securities. Under normal circumstances at least 75%
of the Portfolio's assets will be invested in common stocks of companies
domiciled in or located throughout the United States. Although the Portfolio may
invest in companies of any size, the Portfolio invests principally in common
stocks of small to mid-sized companies. The Portfolio invests in companies that,
in the opinion of Charter, have demonstrated earnings, asset values, or growth
potential not yet reflected in their market price. A key indication of such
undervaluation considered by Charter is earnings growth which is above average
as compared to the S&P 500 Index. Other important factors in selecting
investments include a strong balance sheet and product leadership in niche
markets. Charter believes that such investments may offer better than average
potential for long-term capital growth.
     Small and mid-size companies may present greater opportunities for capital
growth than do larger companies because of high potential earnings growth, but
they may also involve greater risk. They may have limited product lines, markets
or financial resources, or may depend on a limited management group. Their
securities may trade less frequently and in limited volume, and only in the
over-the-counter market or on a regional securities exchange. As a result, these
securities may change in value more than those of larger, more established
companies.
                                       8
 
<PAGE>
MENTOR CAPITAL GROWTH PORTFOLIO (FORMERLY, CAMBRIDGE CAPITAL GROWTH PORTFOLIO)
INVESTMENT ADVISER: COMMONWEALTH ADVISORS, INC. ("COMMONWEALTH ADVISORS")
     The investment objective of the Capital Growth Portfolio is to provide
long-term appreciation of capital. The Portfolio may invest in a wide variety of
securities which Commonwealth Advisors believes offers the potential for capital
appreciation over both the intermediate and long term. The Portfolio does not
invest for current income.
     The Portfolio invests primarily in common stocks of companies believed by
Commonwealth Advisors to have potential for capital appreciation. The Portfolio
may invest without limit in preferred stocks, investment-grade bonds,
convertible preferred stocks, and convertible debentures and any other class or
type of security Commonwealth Advisors believes offers the potential for capital
appreciation. In selecting investments, Commonwealth Advisors will attempt to
identify securities it believes will provide capital appreciation over the
intermediate or long term due to change in the financial condition of issuers,
changes in financial condition, or other factors. The Portfolio also may invest
in fixed-income securities, and cash or money market investments, for temporary
defensive purposes.
MENTOR STRATEGY PORTFOLIO (FORMERLY, MENTOR STRATEGY FUND)
INVESTMENT ADVISER: WELLESLEY ADVISORS, INC. ("WELLESLEY")
     The Strategy Portfolio's investment objective is to seek high total return
on its investments. In seeking to achieve this objective, Wellesley actively
allocates the Portfolio's assets among the major asset categories of equity
securities, fixed-income securities, and money market instruments. The Portfolio
will normally invest some portion of its assets in each asset category, but may
invest without limit in any asset category. Total return consists of current
income (including dividends, interest, and, in the case of discounted
instruments, discount accruals) and capital appreciation (including realized and
unrealized capital gains and losses).
     Wellesley believes that the Portfolio has the potential to achieve
above-average investment returns at comparatively lower risk by actively
allocating its resources among the equity, debt, and money market sectors of the
market as opposed to relying solely on just one market sector. For example,
Wellesley may at times believe that the equity market holds a higher potential
for total return than the debt market and that a relatively large portion of the
Portfolio's assets should be allocated to the equity market sector. The reverse
would be true at times when Wellesley believes that the potential for total
return in the bond market is greater than that in the equity market. Wellesley
might also allocate the Portfolio's investments to short-term bonds and money
market instruments in order to earn current return and to reduce the potential
adverse effect of declines in the bond and equity markets. After determining the
portions of the Portfolio's assets to be invested in the various market sectors,
Wellesley attempts to select the securities of companies within those sectors
offering potential for above-average total return. The achievement of the
Portfolio's investment objective depends upon, among other things, the ability
of Wellesley to assess correctly the effects of economic and market trends on
different sectors of the market. The Portfolio's investments may include both
securities of U.S. issuers and securities traded principally in foreign markets.
The Portfolio may invest without limit in foreign securities. See "Other
Investment Practices -- Foreign Securities" for a description of risks
associated with investments in such securities.
     Within the equity sector, Wellesley actively allocates the Portfolio's
assets to those industries and issuers it expects to benefit from major market
trends or which it otherwise believes offer the potential for above-average
total return. The Portfolio may purchase equity securities (including
convertible debt obligations and convertible preferred stock) sold on the New
York, American, and other U.S. or foreign stock exchanges and in the over-the-
counter market.
                                       9
 
<PAGE>
     Within the fixed-income sector, Wellesley seeks to maximize the return on
its investments by adjusting maturities and coupon rates as well as by
exploiting yield differentials among different types of investment-grade
securities. The Portfolio may invest in debt securities of any maturity,
preferred stocks, and other fixed-income instruments, including, for example,
U.S. Government securities and corporate debt securities (including zero-coupon
securities). A substantial portion of the Portfolio's investments in the
fixed-income sector may be in mortgage-backed securities, including
collateralized mortgage obligations ("CMOs") and certain other stripped
mortgage-backed securities, which have certain special risks. See "Other
Investment Practices -- Mortgage-backed securities; other asset-backed
securities" and " -- Other mortgage-related securities" for a description of
these risks. The Portfolio will only invest in debt securities which are rated
at the time of purchase Baa or better by Moody's Investors Service, Inc.
("Moody's") or BBB or better by Standard & Poor's Corporation ("S&P") or which,
if unrated, are deemed by Wellesley to be of comparable quality. While bonds
rated Baa or BBB are considered to be of investment grade, they have speculative
characteristics as well. A description of securities ratings is contained in the
Appendix to this Prospectus.
     The money market portion of the Portfolio will contain short-term
fixed-income securities issued by private and governmental institutions. Such
securities may include, for example, U.S. Government securities; bank
obligations; Eurodollar certificates of deposit issued by foreign branches of
domestic banks; obligations of savings institutions; fully insured certificates
of deposit; and commercial paper rated within the two highest grades by S&P or
the highest grade by Moody's or, if not rated, issued by a company having an
outstanding debt issue rated at least Aa by Moody's or AA by S&P.

MENTOR INCOME AND GROWTH PORTFOLIO (FORMERLY, CAMBRIDGE INCOME AND GROWTH
PORTFOLIO)

INVESTMENT ADVISER: COMMONWEALTH ADVISORS, INC.
SUB-ADVISER: WELLINGTON MANAGEMENT COMPANY ("WMC")
     The investment objective of the Income and Growth Portfolio is to provide a
conservative combination of income and growth of capital, consistent with
capital protection. The Portfolio invests in a diversified portfolio of equity
securities of companies WMC believes exhibit sound fundamental characteristics
and in investment-grade fixed-income securities and U.S. Government securities,
as described below.
     WMC will manage the allocation of assets among asset classes based upon its
analysis of economic conditions, relative fundamental values and the
attractiveness of each asset class, and expected future returns of each asset
class. The Portfolio will normally have some portion of its assets invested in
each asset class at all times but may invest without limit in any asset class.
     The Portfolio may invest in a wide variety of equity securities, such as
common stocks and preferred stocks, as well as debt securities convertible into
equity securities or that are accompanied by warrants or other equity
securities. In selecting equity investments, WMC will attempt to identify
securities of out-of-favor companies which WMC believes are undervalued. Within
the equity asset class, the Portfolio seeks to achieve long-term appreciation of
capital and a moderate income level by selecting investments in out-of-favor
companies with sound fundamentals. These decisions are based primarily on WMC's
fundamental research and security valuations.
     Within the fixed-income asset class, WMC seeks to invest in a portfolio
that provides as high a level of current income as is consistent with prudent
investment risk. The Portfolio may invest in debt securities of any maturity,
preferred stocks, and other fixed-income instruments, including, for example,
U.S. Government securities and corporate debt securities (including zero-coupon
securities). The Portfolio will only invest in debt securities which are rated
at the time of purchase Baa or better by Moody's or BBB or better by S&P or
which, if
                                       10
 
<PAGE>
unrated, are deemed by WMC to be of comparable quality. While fixed-income
securities rated Baa or BBB are considered to be of investment grade, they have
speculative characteristics as well. A description of securities ratings is
contained in the Appendix to this Prospectus.
     The Portfolio may invest up to 10% of its assets in securities secured by
real estate or interests therein or issued by companies which invest in real
estate or interests in real estate. The Portfolio will limit its investment in
real estate investment trusts to 10% of its total assets. Such investments may
involve many of the risks of direct investment in real estate, such as declines
in the value of real estate, risks related to general and local economic
conditions, and adverse changes in interest rates. Other risks associated with
real estate investment trusts include lack of diversification, borrower default,
and voluntary liquidation.
MENTOR PERPETUAL GLOBAL PORTFOLIO (FORMERLY, CAMBRIDGE GLOBAL PORTFOLIO)
INVESTMENT ADVISER: MENTOR PERPETUAL ADVISORS, L.L.C. ("MENTOR PERPETUAL")
     The investment objective of the Global Portfolio is to seek long-term
growth of capital through a diversified portfolio of marketable securities made
up primarily of equity securities, including common stocks, preferred stocks,
securities convertible into common stocks, and warrants. The Portfolio may also
invest in debt securities and other fixed-income securities of private or
governmental issuers (including zero-coupon securities) which Mentor Perpetual
believes to be consistent with the Portfolio's objective.
     It is expected that the Portfolio's investments will normally be spread
broadly around the world, although (except as described in the next sentence)
there is no limit on the amount of the Portfolio's assets that may be invested
in any single country. Under normal circumstances, the Portfolio will invest at
least 65% of the value of its total assets in securities of at least three
countries, one of which may be the United States. The Portfolio may invest all
of its assets in securities of issuers outside the United States, and for
temporary defensive purposes may at times invest all of its assets in securities
of U.S. issuers. To the extent that the Portfolio invests a substantial portion
of its assets in securities of issuers located in a single country, it will be
more susceptible to adverse economic, business, political, or regulatory
conditions in or affecting that country than if it were to invest in a
geographically more diverse portfolio. The Portfolio may invest in closed-end
investment companies holding foreign securities. The Portfolio also may hold a
portion of its assets in cash or cash equivalents, including foreign and
domestic money market instruments.
     It is likely that, at times, a substantial portion of the Portfolio's
assets will be invested in securities of issuers in emerging markets, including
under-developed and developing nations. Investments in emerging markets are
subject to the same risks applicable to foreign investments generally although
those risks may be increased due to conditions in such markets. For example, the
securities markets and legal systems in emerging markets may only be in a
developmental stage and may provide few, or none, of the advantages or
protections of markets or legal systems available in more developed countries.
Although many of the securities in which the Portfolio may invest are traded on
securities exchanges, they may trade in limited volume, and the exchanges may
not provide all of the conveniences or protections provided by securities
exchanges in more developed markets. The Portfolio may also invest a substantial
portion of its assets in securities traded in the over-the-counter markets and
not on any exchange, which may affect the liquidity of the investment and expose
the Portfolio to the credit risk of its counteparties in trading those
investments. See "Other Investment Practices -- Foreign securities."
     Mentor Perpetual may seek investment opportunities in securities of large,
widely traded companies as well as securities of small, less well known
companies. Small companies may present greater opportunities for investment
return, but may also involve greater risks. They may have limited product lines,
markets, or financial resources, or may depend on a limited management group.
Their securities may trade less frequently and in
                                       11
 
<PAGE>
limited volume. As a result the prices of these securities may fluctuate more
than prices of securities of larger, more established companies.
     Except as described below, debt and fixed-income securities in which the
Portfolio may invest will be investment-grade securities or those of equivalent
quality as determined by Perpetual. The Portfolio may invest up to 5% of its
total assets in debt securities rated Baa or below by Moody's, or BBB or below
by S&P, or deemed by Mentor Perpetual to be of comparable quality, and may
invest in securities rated as low as C by Moody's or D by S&P. Securities rated
below investment grade are commonly referred to as "junk bonds" and are
predominately speculative, and securities rated investment grade (BBB/Baa or
above) may have speculative characteristics. Securities rated D may be in
default with respect to payment of principal or interest.

MENTOR QUALITY INCOME PORTFOLIO (FORMERLY, CAMBRIDGE GOVERNMENT INCOME
PORTFOLIO)

INVESTMENT ADVISER: COMMONWEALTH ADVISORS, INC.
     The Quality Income Portfolio's investment objective is to seek high current
income consistent with what Commonwealth Advisors believes to be prudent risk.
The Portfolio may invest in debt securities, including both U.S. Government and
corporate obligations, and in other income-producing securities, including
preferred stocks and dividend-paying common stocks. The Portfolio may also hold
a portion of its assets in cash or money market instruments. There can, of
course, be no assurance that the Portfolio will achieve its investment
objective.
     Corporate debt obligations and preferred stocks in which the Portfolio may
invest will be of investment grade. A security will be deemed to be of
"investment grade" if, at the time of investment by the Portfolio, it is rated
at least Baa3 by Moody's or BBB- by Standard & Poor's or at a comparable rating
by another nationally recognized rating organization, or, if unrated, determined
by Commonwealth Advisors to be of comparable quality. Securities rated Baa or
BBB lack outstanding investment characteristics and have speculative
characteristics and are subject to greater credit and market risks than
higher-rated securities. The Portfolio will normally invest at least 80% of its
assets in U.S. Government securities and in other securities rated at least A by
Moody's or Standard & Poor's or at a comparable rating by another nationally
recognized rating organization, or, if unrated, determined by Commonwealth
Advisors to be of comparable quality.
     Commonwealth Advisors may take full advantage of the entire range of
maturities of the securities in which the Portfolio may invest and may adjust
the average maturity of the Portfolio's securities from time to time, depending
on its assessment of relative yields on securities of different maturities and
expectations of future changes in interest rates. The Portfolio may invest in
mortgage-backed certificates and other securities representing ownership
interests in mortgage pools, including collateralized mortgage obligations and
certain stripped mortgage-backed securities (including certain "residual"
interests), which involve certain risks. See "Other Investment
Practices -- Mortgage-backed securities; other asset-backed securities" and
" -- Other mortgage-related securities" below. The Portfolio may also engage in
a variety of interest rate transactions, including swaps, caps, floors and
collars. See "Other Investment Practices -- Interest rate transactions" below
for a description of risks associated with these transactions.

MENTOR MUNICIPAL INCOME PORTFOLIO (FORMERLY, CAMBRIDGE MUNICIPAL INCOME
PORTFOLIO)

INVESTMENT ADVISER: COMMONWEALTH ADVISORS, INC.
SUB-ADVISER: VAN KAMPEN/AMERICAN CAPITAL MANAGEMENT, INC. ("VAN KAMPEN")
     The investment objective of the Municipal Income Portfolio is to provide
investors with a high level of current income exempt from federal regular income
tax, consistent with preservation of capital. Under normal market conditions,
the Portfolio will invest at least 80% of its total assets in tax-exempt
municipal securities rated
                                       12
 
<PAGE>
investment grade, or deemed by Van Kampen to be of comparable quality, at the
time of investment. The Portfolio may invest a substantial portion of its assets
in municipal securities that pay interest that is a tax preference item under
the federal alternative minimum tax. The Portfolio may not be a suitable
investment for investors who are already subject to federal alternative minimum
tax or who would become subject to federal alternative minimum tax as a result
of an investment in the Portfolio.
     Tax-exempt municipal securities are debt obligations issued by or on behalf
of the governments of states (including the District of Columbia) and United
States territories or possessions, and their political subdivisions, agencies,
and instrumentalities, and certain interstate agencies, the interest on which,
in the opinion of bond counsel or other counsel to the issuer of such
securities, is exempt from federal income tax. The Portfolio may also invest up
to 10% of its assets in tax-exempt money market funds, which will be considered
tax-exempt municipal securities for this purpose.
     Up to 20% of the Portfolio's total assets may be invested in tax-exempt
municipal securities rated between BB and B-(inclusive) by S&P or between Ba and
B3 (inclusive) by Moody's (or equivalently rated short-term obligations) and
unrated tax-exempt securities that Van Kampen considers to be of comparable
quality. These securities are below investment grade and are considered to be of
poor standing and predominantly speculative. Assurance of interest and principal
payments or of maintenance of other terms of the securities' contract over any
long period of time may be small. The Portfolio will not invest in securities
rated below B- by S&P or below B3 by Moody's at the time of purchase. For more
detailed information about the risks associated with investing in lower-rated
securities, see "Risks of lower-grade securities" below. The Portfolio may hold
a portion of its assets in cash or money market instruments.
     The two principal classifications of municipal securities are "general
obligation" and "revenue" bonds. 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 usually 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.
Industrial development bonds are usually revenue bonds, the credit quality of
which is normally directly related to the credit standing of the industrial user
involved.
     There are, in addition, a variety of hybrid and special types of municipal
securities, including variable rate securities, municipal notes, and municipal
leases. Variable rate securities bear rates of interest that are adjusted
periodically according to formulae intended to minimize fluctuation in values of
the instruments. Municipal notes include tax, revenue, and bond anticipation
notes of short maturity, generally less than three years, which are issued to
obtain temporary funds for various public purposes. Municipal leases are
obligations issued by state and local governments or authorities to finance the
acquisition of equipment and facilities and may be considered not to be liquid.
They may take the form of a lease, an installment purchase contract, a
conditional sales contract, or a participation certificate on any of the above.
No more than 5% of the net assets of the Portfolio will be invested in municipal
leases. A more detailed description of the types of municipal securities in
which the Portfolio may invest is included in the Statement of Additional
Information.
     RISKS OF LOWER-GRADE SECURITIES. Investors should carefully consider the
risks of owning shares of a mutual fund which invests in lower-grade securities,
commonly known as "junk bonds", before making an investment in the Portfolio.
The higher yield on certain securities held by the Portfolio reflects a greater
possibility that the financial condition of the issuer, or adverse changes in
general economic conditions, or both, may impair the ability of the issuer to
make payments of income and principal. Lower-grade securities generally involve
greater credit risk than higher-grade municipal securities and are more
sensitive to adverse economic changes, significant increases in interest rates,
and individual issuer developments. The inability (or perceived inability) of
issuers to
                                       13
 
<PAGE>
make timely payments of interest and principal would likely make the values of
securities held by the Portfolio more volatile and could limit the Portfolio's
ability to sell its securities at prices approximating the values the Portfolio
had placed on such securities. In the absence of a liquid trading market for
securities held by it, the Portfolio may be unable at times to establish the
fair value of such securities and may not be able to dispose of such securities
in a timely manner at a price which reflects the value of such securities. The
rating assigned to a security by Moody's or S&P does not reflect an assessment
of the volatility of the security's market value or of the liquidity of an
investment in the security. For more information about the rating services'
descriptions of lower-rated municipal securities, see the Appendix to this
Prospectus.
     Van Kampen seeks to minimize the risks involved in investing in lower-grade
securities through diversification and careful investment analysis. However, the
amount of information about the financial condition of an issuer of lower-grade
municipal securities may not be as extensive as that which is made available by
corporations whose securities are publicly traded. When the Portfolio invests in
tax exempt securities in the lower rating categories, the achievement of the
Portfolio's goals is more dependent on Van Kampen's ability than would be the
case if the Portfolio were investing in securities in the higher rating
categories. To the extent that there is no established retail market for some of
the lower-grade securities in which the Portfolio may invest, trading in such
securities may be relatively inactive. During periods of reduced market
liquidity and in the absence of readily available market quotations for
lower-grade municipal securities held by the Portfolio, the valuation of the
Portfolio's securities becomes more difficult and the use of judgment may play a
greater role in the valuation of the Portfolio's securities due to the reduced
availability of reliable objective data. The effects of adverse publicity and
investor perceptions may be more pronounced for securities for which no
established market exists as compared with the effects on securities for which
such a market does exist. Further, the Portfolio may have more difficulty
selling such securities in a timely manner and at their stated value than would
be the case for securities for which an established market does exist.
     CONCENTRATION. The Portfolio generally will not invest more than 25% of its
total assets in any one industry. Governmental issuers of municipal securities
are not considered part of any "industry." However, municipal securities backed
only by the assets and revenues of nongovernmental users may for this purpose be
deemed to be issued by such nongovernmental users, and the 25% limitation would
apply to such obligations. It is nonetheless possible that the Portfolio may
invest more than 25% of its assets in a broader segment of the municipal
securities market, such as revenue obligations of hospitals and other health
care facilities, housing agency revenue obligations, or airport revenue
obligations, if Van Kampen determines that the yields available from obligations
in a particular segment of the market justify the additional risks associated
with such concentration. Although such obligations could be supported by the
credit of governmental users, or by the credit of nongovernmental users engaged
in a number of industries, economic, business, political, and other developments
generally affecting the revenues of such users (for example, proposed
legislation or pending court decisions affecting the financing of such projects
and market factors affecting the demand for their services or products) may have
a general adverse effect on all municipal securities in such a market segment.
The Portfolio reserves the right to invest more than 25% of its assets in
industrial development or private activity bonds or in issuers located in any
individual state, although Van Kampen has no present intention to invest more
than 25% of the Portfolio's assets in issuers located in the same state. If the
Portfolio were to invest more than 25% of its assets in issuers located in one
individual state, it would be more susceptible to adverse economic, business, or
regulatory conditions in or affecting that state than if it were to invest in a
geographically more diverse portfolio.
                                       14

<PAGE>

MENTOR SHORT-DURATION INCOME PORTFOLIO (FORMERLY, MENTOR SHORT-DURATION INCOME
FUND)

INVESTMENT ADVISER: COMMONWEALTH INVESTMENT COUNSEL, INC. ("COMMONWEALTH
INVESTMENT COUNSEL")
     The Short-Duration Income Portfolio's investment objective is to seek
current income. As a secondary objective, the Portfolio seeks preservation of
capital, to the extent consistent with its objective of current income. The
Portfolio will normally invest at least 65% of its assets in debt securities
with a "duration" of three years or less. The Portfolio may invest in U.S.
Government securities and debt obligations of private issuers and in preferred
stocks and dividend-paying common stocks, and may hold a portion of its assets
in cash or money market instruments.
     The Portfolio may at times invest a substantial portion of its assets in
mortgage-backed certificates and other securities representing ownership
interests in mortgage pools, including CMOs and certain other stripped
mortgage-backed securities (including certain "residual" interests). See "Other
Investment Practices -- Mortgage-backed securities; other asset-backed
securities" and " -- Other mortgage-related securities" below for a description
of these securities and risks they may entail. The Portfolio may also invest a
substantial portion of its assets in securities representing secured or
unsecured interests in other types of assets, such as automobile finance or
credit card receivables.
     Traditionally, a debt security's "term to maturity" has been used to
evaluate the sensitivity of the security's price to changes in interest rates
(the security's interest-rate "volatility"). However, a security's term to
maturity measures only the period of time until the last payment of principal or
interest on the security, and does not take into account the timing of the
various payments of principal or interest to be made prior to the instrument's
maturity. By contrast, "duration" is a measure of the full stream of payments to
be received on a debt instrument, including both interest and principal
payments, based on their present values. Duration measures the periods of time
between the present time and the time when the various interest and principal
payments are scheduled or, in the case of a callable bond, expected to be
received, and weights them by their present values.
     There are some situations where even the standard duration calculation does
not properly reflect the interest-rate volatility of a security. For example,
floating and variable rate securities often have final maturities of ten years
or more; however, their interest-rate volatility is determined based principally
on the period of time until their interest rates are reset and on the terms on
which they may be reset. Another example where a security's interest-rate
volatility is not properly measured by its duration is the case of mortgage
securities. The stated final maturity of such securities may be up to 30 years,
but the actual cash flow on the securities will be determined by the prepayment
rates on the underlying mortgage loans. Therefore, the duration of such a
security can change if prepayment rates change. In these and other similar
situations, Commonwealth Investment Counsel will estimate a security's duration
using sophisticated analytical techniques that take into account such factors as
the expected prepayment rate on the security and how the prepayment rate might
change under various market conditions.
     The Portfolio will invest in debt securities and preferred stocks of
investment grade, and the Portfolio will seek under normal market conditions to
maintain a portfolio of securities with a dollar-weighted average rating of A or
better. A security will be considered to be of "investment grade" if, at the
time of investment by the Portfolio, it is rated at least Baa3 by Moody's or
BBB- by S&P or the equivalent by another nationally recognized rating
organization or, if unrated, determined by Commonwealth Investment Counsel to be
of comparable quality. Securities rated Baa or BBB lack outstanding investment
characteristics and have speculative characteristics and are subject to greater
credit and market risks than higher-rated securities. A description of
securities ratings is contained in the Appendix to this Prospectus.
                                       15
 
<PAGE>
     The Portfolio may also engage in a variety of interest rate transactions,
including swaps, caps, floors, and collars. See "Other Investment
Practices -- Interest rate transactions" below for a description of risks
associated with these transactions.
OTHER INVESTMENT PRACTICES
     Each of the Portfolios (except as noted below) may engage in the other
investment practices described below. See the Statement of Additional
Information for a more detailed description of these practices and certain risks
they may involve.
     MORTGAGE-BACKED SECURITIES; OTHER ASSET-BACKED SECURITIES. Each of the
Strategy, Short-Duration Income, Quality Income, and Income and Growth
Portfolios may invest in mortgage-backed certificates and other securities
representing ownership interests in mortgage pools, including CMOs and, in the
case of the Quality Income and Short-Duration Income Portfolios, "residual"
interests therein (described more fully below). Interest and principal payments
on the mortgages underlying mortgage-backed securities are passed through to the
holders of the mortgage-backed securities. Mortgage-backed securities currently
offer yields higher than those available from many other types of fixed-income
securities but because of their prepayment aspects, their price volatility and
yield characteristics will change based on changes in prepayment rates. As a
result, mortgage-backed securities are less effective than other securities as a
means of "locking in" long-term interest rates. Generally, prepayment rates
increase if interest rates fall and decrease if interest rates rise. For many
types of mortgage-backed securities, this can result in unfavorable changes in
price and yield characteristics in response to changes in interest rates and
other market conditions. For example, as a result of their prepayment aspects,
mortgage-backed securities have less potential for capital appreciation during
periods of declining interest rates than other fixed-income securities of
comparable maturities, although such obligations may have a comparable risk of
decline in market value during periods of rising interest rates.
     Mortgage-backed securities have yield and maturity characteristics that are
dependent upon the mortgages underlying them. Thus, unlike traditional debt
securities, which may pay a fixed rate of interest until maturity when the
entire principal amount comes due, payments on these securities may include both
interest and a partial payment of principal. In addition to scheduled loan
amortization, payments of principal may result from the voluntary prepayment,
refinancing, or foreclosure of the underlying mortgage loans. Such prepayments
may significantly shorten the effective durations of mortgage-backed securities,
especially during periods of declining interest rates. Similarly, during periods
of rising interest rates, a reduction in the rate of prepayments may
significantly lengthen the effective durations of such securities.
     Each of the Strategy, Short-Duration Income, and Quality Income Portfolios
may invest in stripped mortgage-backed securities. Stripped mortgage-backed
securities are usually structured with two classes that receive different
portions of the interest and principal distributions on a pool of mortgage
assets. A Portfolio may invest in both the interest-only  -- or "IO"  -- class
and the principal-only  -- or "PO"  -- class. The yield to maturity and price of
an IO class is extremely sensitive to the rate of principal payments (including
prepayments) on the related underlying mortgage assets, and a rapid rate of
principal payments may have a material adverse effect on the Portfolio's net
asset value. This would typically be the case in an environment of falling
interest rates. If the underlying mortgage assets experience greater than
anticipated prepayments of principal, a Portfolio may under some circumstances
fail to fully recoup its initial investment in these securities. Conversely, POs
tend to increase in value if prepayments are greater than anticipated and
decline if prepayments are slower than anticipated. The secondary market for
stripped mortgage-backed securities may be more volatile and less liquid than
that for other mortgage-backed securities, potentially limiting a Portfolio's
ability to buy or sell those securities at any particular time.
                                       16



<PAGE>
                           THE MENTOR FAMILY OF FUNDS

                                NEW ACCOUNT FORM
                          AND SHAREOWNER OPTIONS FORM



                              [MENTOR FUNDS LOGO]


<PAGE>
                             USE THE ATTACHED FORM
                               TO ESTABLISH YOUR
                         MENTOR FAMILY OF FUNDS ACCOUNT





<PAGE>
NEW ACCOUNT FORM AND
SHAREOWNER OPTIONS FORM

[MENTOR FUNDS LOGO]

TYPE OF ACCOUNT

Use this one form to open any ONE of the following types of accounts. Please
check the appropriate one below.

[ ] Individual Account, Complete 1. [ ] Joint Account, Complete 1 and 2.
[ ] Custodial Account, (Gift to a Minor), Complete 3.
[ ] Trust Account, Complete 4. [ ] Corporate (or Organization)
Account, Complete 5.

[ ] Revise Existing Account
                                    Number

1.                                               -        -

   Name                                  Social Security Number

2.                                               -        -

   Name                                  Social Security Number

SHAREOWNER EMPLOYMENT INFORMATION

This information is required in accordance with the Rules of Fair Practice of
the National Association of Securities Dealers.

Occupation of Shareowner or Custodian

Employer's Name

Employer's Address

City                                 State      ZIP Code

Occupation of Co-Shareowner

Employer's Name

Employer's Address

City                                 State      ZIP Code

3.                                                              as custodian for
  Custodian's Name (only one custodian permitted)

  Minor's Name (only one minor permitted)
         -         -

  Minor's Social Security Number

  Under the      Uniform Gifts or      Uniform Transfers to Minors
           State                 State

Act             /            /
            Minor's Birthdate
4.
  Name of Trustee                  Name of Trust

                                                   /     /

  Name of Second Trustee (if any)              Date of Trust

  Trust's Taxpayer Identification Number

5.
  Name of Corporation (or other entity)
  Taxpayer Identification Number
  Business Type:

         Corporation     Partnership     Organization

         Fiduciary      Other
                                      Specify other type

         (Please attach a certified copy of your corporate resolution)

MAILING ADDRESS OF ACCOUNT

All the information requested is needed to open your account.


Street Address or Box Number                 Apartment Number

City                                          State    ZIP Code

(       )                       (       )
Area Code Daytime Phone     Area Code   Evening Phone

FUND SELECTION AND INITIAL INVESTMENT
[ ] Next to the Fund name(s), indicate the amount you're investing in the Fund.
    MINIMUM PER FUND: $1,000

[ ] Be sure to check how you want your Dividend and Capital Gains distributions
    handled: automatically reinvested to buy more shares or sent to you by
    check.

[ ] Indicate the TOTAL amount you're investing at this time.

<TABLE>
<CAPTION>
                                     CLASS
FUND CHOICE                 A          B         BL        AMOUNT                      REINVEST CASH
<S>                     <C>        <C>        <C>       <C>                            <C>      <C>
                                                                         Dividends
[ ]  Growth Portfolio      [ ]        [ ]      [ ]        $              Capital Gains  [ ]     [ ]
                                                                         Dividends
[ ]  Capital Growth        [ ]        [ ]      [ ]        $              Capital Gains  [ ]     [ ]
     Portfolio
                                                                         Dividends
[ ]  Quality Income        [ ]        [ ]      [ ]        $              Capital Gains  [ ]     [ ]
     Portfolio
                                                                         Dividends
[ ]  Municipal             [ ]        [ ]      [ ]        $              Capital Gains  [ ]     [ ]
     Income Portfolio
                                                                         Dividends
[ ]  Income and            [ ]        [ ]      [ ]        $              Capital Gains  [ ]     [ ]
     Growth Portfolio
                                                                         Dividends
[ ]  Perpetual Global      [ ]        [ ]      [ ]        $              Capital Gains  [ ]     [ ]
     Portfolio
                                                                         Dividends
[ ]  Short-Duration        [ ]        [ ]      [ ]        $              Capital Gains  [ ]     [ ]
     Income Portfolio
                                                                         Dividends
[ ]  Strategy Portfolio    [ ]        [ ]      [ ]        $              Capital Gains  [ ]     [ ]
</TABLE>

                            TOTAL $

[ ] Check enclosed for total purchase above made payable to The Mentor Funds.
[ ] Other payment method

TELEPHONE EXCHANGE/
TELEPHONE REDEMPTION

I elect the following privileges as described in the prospectus:

   Telephone Exchange: [ ] Yes         Telephone Redemptions: [ ] Yes
                       [ ] No                                 [ ] No

These privileges will automatically apply if neither box is checked.

By establishing these services and signing this form,
I acknowledge that:

I authorize Boston Financial Data Services, Inc. to accept and act upon
telephoned instructions to (1) exchange shares I own in any Mentor Fund(s) for
shares of any other Mentor Fund(s) or (2) redeem shares I own in any Mentor
Fund(s).

I understand that exchanges can be made only between accounts having identical
registrations.

[ ] LETTER OF INTENT

I understand that through accumulated investments I can reduce my sales charges
on Class A shares. I plan to invest over a 13-month period in Class A shares of
one or more of the Funds in The Mentor Funds an aggregate amount of at least:

[ ] $50,000 (applies only to equity funds)
[ ] $10,000 [ ] $250,000 [ ] $500,000 [ ] $1,000,000 (and above)

If the amount indicated is not invested within 13 months, reduced sales charge
do not apply.

[ ] I am already investing under an existing statement of intention.

[ ] RIGHTS OF ACCUMULATION

[ ] I own Class A shares of more than one Fund in The Mentor Funds, which may
    entitle me to a reduced sales charge. My shareholder account numbers are:

[ ] The registration of some of my shares differs. Their account numbers are:

                                            BE SURE TO COMPLETE THE REVERSE SIDE






<PAGE>
[ ] SYSTEMATIC INVESTMENT PLAN
    VIA ACH

Check the box above and complete this section; then check the box next to Bank
Account Information and complete that section too.

I authorize State Street Bank & Trust Co. (service agent for The Mentor Funds),
to withdraw money from my bank account to buy more shares for my account(s) in
the Fund(s) listed below.

<TABLE>
<CAPTION>
FUND                                    AMOUNT ($100 minimum)
<S>                                     <C>
[ ]                                         $
[ ]                                         $
</TABLE>

Please note: This service takes approximately 15 days to establish and will be
             done on or about the 15th of each month.

[ ] SYSTEMATIC WITHDRAWAL
    PLAN VIA CHECK

You must have a minimum of $10,000 in your mutual fund account to qualify for
this optional service.

(Class B shares withdrawals will not be subject to the applicable CDSC up to 10%
of account value at the time of plan inception.)

Check the box above and complete this section.

I authorize State Street Bank & Trust Co. (service agent for The Mentor Funds),
to redeem shares from my account(s) in the Fund(s) listed below and mail a check
for the amount specified to the name and address on the account. State Street
Bank & Trust Co., is to do this on the 15th of each month. If the 15th falls on
a weekend or holiday, the transaction will take place the next business day.
<TABLE>
<CAPTION>
FUND                                    AMOUNT ($100 minimum)
<S>                                     <C>
[ ]                                        $
[ ]                                        $
</TABLE>

Please send my Systematic Withdrawal Check to

[ ] Mailing Address of Account
[ ] Other*

Please note: This service takes approximately two (2) weeks to establish.
*Signature guarantee required

[ ] BANK ACCOUNT INFORMATION

Complete this section only if you are signing-up for [ ] Telephone Redemption,
[ ] Systematic Investment Plan, or [ ] Systematic
Withdrawal Plan.

Bank Name                                 ABA Number

Bank Address

City                                        State      ZIP Code

Name(s) on Bank Account

Bank Account Number

       Checking              Savings

Please attach a check (marked "VOID") or a deposit ticket from this bank
account.

SIGNATURES

This New Account Form must be signed for an account to be opened. The signatures
required for the various types of accounts are:

[ ] Individual Account, the individual's
[ ] Joint Account, both shareowners'
[ ] Custodial Account (Gift to a Minor), the custodian's
[ ] Corporate (or Organization) Account, an officer's (and the officer's title
    must be included)

By signing this New Account Form below, I assure that:

BULLET I have received and read the prospectus for each of the Funds in which I
       am investing, and I understand that the prospectus terms are incorporated
       into this form by reference.

BULLET I authorize The Mentor Funds, their affiliates and agents, to act on any
       instructions believed to be genuine for any service authorized on this
       form. I agree they will not be liable for any resulting loss or expense.

BULLET I am of legal age in my state and have the authority and legal capacity
       to purchase mutual fund shares.

BULLET I understand that I may terminate the Telephone Redemption, Systematic
       Investment Plan, and/or Systematic Withdrawal Plan at any time by writing
       to Boston Financial Data Services.

BULLET I understand that I will receive 30 days' written notice from Boston
       Financial Data Services, Transfer Agent, before any service on this form
       is terminated.

BULLET I certify, under penalties of perjury, that:

       1. The Social Security or Taxpayer Identification Number shown on this
          form is correct. (If I fail to give the correct number or to sign this
          form, The Mentor Funds may reject, restrict, or redeem my investment.
          I may also be subject to IRS Backup Withholding of a percentage of all
          distributions and redemptions.)

       2. I am NOT currently subject to IRS Backup Withholding because (a) I
          have not been notified of it or (b) notification has been revoked.
          (Cross out "NOT" if you are currently subject to Backup Withholding.)

I agree that neither Mentor Investment Group, Inc. Mentor Distributors, Inc.,
Boston Financial Data Services, The Mentor Funds, nor any of their affiliates
will be responsible for the authenticity of any instructions given and shall be
fully indemnified and held harmless from any and all direct liabilities, losses,
or cost resulting from acting upon such transactions.

Shareowner (or Custodian)                                 Date

Co-Shareowner                                             Date

Corporate Officer or Trustee                              Date

Title of Corporate Officer or Trustee                     Date

DEALER INFORMATION

To be completed by Customer Account Representative:

Financial Institution Name

Address

City                                            State                   ZIP Code

Dealer Number (If applicable)

Representative's Code Number

Representative's Full Name

Representative's Branch Office

Representative's Phone Number

MAILING INFORMATION

Send this completed form to:
      The Mentor Funds
      c/o Boston Financial Data Services
      P.O. Box 8507
      Boston, MA 02266
If you have any questions please call 1-800-382-0016

MENTOR DISTRIBUTORS, INC., Distributor

<PAGE>

     Certain mortgage-backed securities held by the Portfolios may permit the
issuer at its option to "call," or redeem, its securities. If an issuer were to
redeem securities held by a Portfolio during a time of declining interest rates,
the Portfolio may not be able to reinvest the proceeds in securities providing
the same investment return as the securities redeemed.
     Each of the Strategy, Quality Income, and Short-Duration Income Portfolios
may invest in securities representing interests in other types of financial
assets, such as automobile-finance receivables or credit-card receivables. Such
securities may or may not be secured by the receivables themselves or may be
unsecured obligations of their issuers. The ability of an issuer of asset-backed
securities to enforce its security interest in the underlying assets may be
limited. For example, the laws of certain states may prevent or restrict
repossession of collateral from a debtor.
     OTHER MORTGAGE-RELATED SECURITIES. The Quality Income and Short-Duration
Income Portfolios may also invest in other types of mortgage-related securities,
including any securities that directly or indirectly represent a participation
in, or are secured by and payable from, mortgage loans or real property,
including collateralized mortgage obligation "residual" interests. "Residual"
interests represent the right to any excess cash flow remaining after all other
payments are made among the various tranches of interests issued by structured
mortgage-backed vehicles. The values of such interests are extremely sensitive
to changes in interest rates and in prepayment rates on the underlying
mortgages. In the event of a significant change in interest rates or other
market conditions, the value of an investment by the Portfolio in such interests
could be substantially reduced and the Portfolio may be unable to dispose of the
interests at prices approximating the values the Portfolio had previously
assigned to them or to recoup its initial investment in the interests. The
Portfolios may invest in new types of mortgage-related securities that may be
developed and marketed from time to time. If any of the Portfolios were to
invest in such newly developed securities, shareholders would, where
appropriate, be notified and this Prospectus would be revised accordingly.
     ZERO-COUPON BONDS. Each of the Income and Growth, Global, Quality Income,
Strategy, Municipal Income, and Short-Duration Income Portfolios may at times
invest in so-called "zero-coupon" bonds. Zero-coupon bonds are issued at a
significant discount from face value and pay interest only at maturity rather
than at intervals during the life of the security. Because zero-coupon bonds do
not pay current interest, their value is subject to greater fluctuation in
response to changes in market interest rates than bonds that pay interest
currently. Zero-coupon bonds allow an issuer to avoid the need to generate cash
to meet current interest payments. Accordingly, such bonds may involve greater
credit risks than bonds that pay interest currently. Even though such bonds do
not pay current interest in cash, a Portfolio is nonetheless required for
federal income tax purposes to accrue interest income on such investments and to
distribute such amounts at least annually to shareholders. Thus, a Portfolio
could be required at times to liquidate other investments in order to satisfy
this distribution requirement.
     PREMIUM SECURITIES. The Portfolios may at times invest in securities
bearing coupon rates higher than prevailing market rates. Such "premium"
securities are typically purchased at prices greater than the principal amount
payable on maturity. Although a Portfolio generally amortizes the amount of any
such premium into income, the Portfolio may recognize a capital loss if such
premium securities are called or sold prior to maturity and the call or sale
price is less than the purchase price. Additionally, a Portfolio may recognize a
capital loss if it holds such securities to maturity.
     OPTIONS AND FUTURES. Each of the Portfolios may buy and sell put and call
options on securities it owns or plans to purchase to hedge against changes in
net asset value or to realize a greater current return. In addition, through the
purchase and sale of futures contracts and related options, each of the
Portfolios may at times seek to
                                       17
 
<PAGE>
hedge against fluctuations in net asset value. In addition, to the extent
consistent with applicable law, the Portfolios may buy and sell futures
contracts and related options to increase investment return. The Strategy
Portfolio may also buy and sell options and futures contracts (including index
options and futures contracts) to implement changes in its asset allocations
among various market sectors, pending the sale of its existing investments and
reinvestments in new securities.
     INDEX FUTURES AND OPTIONS. Each of the Portfolios may buy and sell index
futures contracts ("index futures") and options on index futures and on indices
for hedging purposes (or may purchase warrants whose value is based on the value
from time to time of one or more foreign securities indices). An "index futures"
contract is a contract to buy or sell units of a particular bond or stock index
at an agreed price on a specified future date. Depending on the change in value
of the index between the time when a Portfolio enters into and terminates an
index futures or option transaction, the Portfolio realizes a gain or loss. The
Portfolios may also, to the extent consistent with applicable law, buy and sell
index futures and options to increase investment return.
     RISKS RELATED TO OPTIONS AND FUTURES STRATEGIES. OPTIONS AND FUTURES
TRANSACTIONS INVOLVE COSTS AND MAY RESULT IN LOSSES. Certain risks arise because
of the possibility of imperfect correlations between movements in the prices of
futures and options and movements in the prices of the underlying security or
index or of the securities held by a Portfolio that are the subject of a hedge.
The successful use by a Portfolio of the strategies described above further
depends on the ability of its investment adviser or sub-adviser to forecast
market movements correctly. Other risks arise from a Portfolio's potential
inability to close out futures or options positions. Although a Portfolio will
enter into options or futures transactions only if its investment adviser or
sub-adviser believes that a liquid secondary market exists for such option or
futures contract, there can be no assurance that a Portfolio will be able to
effect closing transactions at any particular time or at an acceptable price.
Transactions in options and futures contracts involve brokerage costs and may
require a Portfolio to segregate assets to cover its outstanding positions. For
more information, see the Statement of Additional Information. Federal tax
considerations may also limit a Portfolio's ability to engage in options and
futures transactions.
     Each Portfolio's options and futures contract transactions will generally
be conducted on recognized exchanges. However, a Portfolio may purchase and sell
options in transactions in the over-the-counter markets. A Portfolio's ability
to terminate options in the over-the-counter markets may be more limited than
for exchange-traded options and may also involve the risk that securities
dealers participating in such transactions would be unable to meet their
obligations to the Portfolio. A Portfolio will, however, engage in
over-the-counter transactions only when appropriate exchange-traded transactions
are unavailable and when, in the opinion of its investment adviser or
sub-adviser, the pricing mechanism and liquidity of the over-the-counter markets
are satisfactory and the participants are responsible parties likely to meet
their contractual obligations.
     LEVERAGE. The Short-Duration Income Portfolio may borrow money to invest in
additional securities to seek current income. This technique, known as
"leverage," increases the Portfolio's market exposure and risk. When the
Portfolio has borrowed money for leverage and its investments increase or
decrease in value, its net asset value will normally increase or decrease more
than if it had not borrowed money for this purpose. The interest that the
Portfolio must pay on borrowed money will reduce its net investment income, and
may also either offset any potential capital gains or increase any losses. The
Portfolio currently intends to use leverage in order to adjust the
dollar-weighted average duration of its portfolio. The Portfolio will not always
borrow money for investment and the extent to which the Portfolio will borrow
money, and the amount it may borrow, depends on market conditions and interest
rates. Successful use of leverage depends on an investment adviser's ability to
predict market movements correctly. The amount of leverage (including leverage
to the extent employed by the Portfolio through "reverse" repurchase agreements,
"dollar-roll" transactions, and forward commitments, described below) that can
exist at any one time will not exceed one-third of the value of the Portfolio's
total assets.
                                       18
 
<PAGE>
     SECURITIES LOANS, REPURCHASE AGREEMENTS, AND FORWARD COMMITMENTS. Each
Portfolio, other than the Municipal Income Portfolio, may lend portfolio
securities and may enter into repurchase agreements with banks, broker/dealers,
and other recognized financial institutions. Each of the Strategy and
Short-Duration Income Portfolios may enter into each type of transaction on up
to 25% of its assets, and each of the Growth, Capital Growth, Global, Income and
Growth, and Quality Income Portfolios may enter into each type of transaction on
up to one-third of its assets. These transactions must be fully collateralized
at all times, but involve some risk to a Portfolio if the other party should
default on its obligations and the Portfolio is delayed or prevented from
recovering the collateral. Each Portfolio, other than the Growth and Strategy
Portfolios, may enter into "reverse" repurchase agreements. Each of the Capital
Growth, Quality Income, Income and Growth, and Global Portfolios may do so with
respect to up to one-third of its assets, and the Municipal Income Portfolio may
do so with respect to up to 5% of its assets. "Reverse" repurchase agreements
generally involve the sale by a Portfolio of securities held by it and an
agreement to repurchase the securities at an agreed-upon price, date, and
interest payment. Each Portfolio also may enter into forward commitments, in
which a Portfolio buys securities for future delivery. Reverse repurchase
agreements and forward commitments may increase overall investment exposure and
may result in losses.
     DOLLAR ROLL TRANSACTIONS. In order to enhance portfolio returns and manage
prepayment risks, each Portfolio, other than the Growth, Strategy, and Municipal
Income Portfolios, may engage in dollar roll transactions with respect to
mortgage-related securities issued by GNMA, FNMA, and FHLMC. In a dollar roll
transaction, a Portfolio sells a mortgage-related security to a financial
institution, such as a bank or broker/dealer, and simultaneously agrees to
repurchase a substantially similar (i.e., same type, coupon, and maturity)
security from the institution at a later date at an agreed upon price. The
mortgage-related securities that are repurchased will bear the same interest
rate as those sold, but generally will be collateralized by different pools of
mortgages with different prepayment histories. During the period between the
sale and repurchase, the Portfolios will not be entitled to receive interest and
principal payments on the securities sold. Proceeds of the sale will be invested
in short-term instruments, and the income from these investments, together with
any additional fee income received on the sale, will generate income for the
Portfolios exceeding the yield.
     FOREIGN SECURITIES. Each Portfolio other than the Growth and Municipal
Income Portfolios may invest in securities principally traded in foreign
markets. The Capital Growth and Income and Growth Portfolios will limit such
investments to 15% and 10%, respectively, of their total assets. Since foreign
securities are normally denominated and traded in foreign currencies, the values
of a Portfolio's assets may be affected favorably or unfavorably by changes in
currency exchange rates and by exchange control regulations. There may be less
information publicly available about a foreign company than about a U.S.
company, and foreign companies are not generally subject to accounting,
auditing, and financial reporting standards and practices comparable to those in
the United States. The securities of some foreign companies are less liquid and
at times more volatile than securities of comparable U.S. companies. Foreign
brokerage commissions and other fees are also generally higher than in the
United States. Foreign settlement procedures and trade regulations may involve
certain risks (such as delay in payment or delivery of securities or in the
recovery of a Portfolio's assets held abroad) and expenses not present in the
settlement of domestic investments.
     In addition, there may be a possibility of nationalization or expropriation
of assets, imposition of currency exchange controls, confiscatory taxation,
political or financial instability, and diplomatic developments which could
affect the value of a Portfolio's investments in certain foreign countries.
Legal remedies available to investors in certain foreign countries may be more
limited than those available with respect to investments in the United States or
in other foreign countries. The laws of some foreign countries may limit a
Portfolio's ability to
                                       19
 
<PAGE>
invest in securities of certain issuers located in those foreign countries.
Special tax considerations apply to foreign securities. A Portfolio may buy or
sell foreign currencies and options and futures contracts on foreign currencies
for hedging purposes in connection with its foreign investments as described
more fully below.
     The risks described above are typically increased to the extent that a
Portfolio invests in securities traded in underdeveloped and developing nations,
which are sometimes referred to as "emerging markets."
     FOREIGN CURRENCY EXCHANGE TRANSACTIONS. Each Portfolio that may invest in
foreign securities may engage in foreign currency exchange transactions to
protect against uncertainty in the level of future currency exchange rates. A
Portfolio may engage in foreign currency exchange transactions in connection
with the purchase and sale of portfolio securities ("transaction hedging") and
to protect against changes in the value of specific portfolio positions
("position hedging").
     A Portfolio also may engage in transaction hedging to protect against a
change in foreign currency exchange rates between the date on which a Portfolio
contracts to purchase or sell a security and the settlement date, or to "lock
in" the U.S. dollar equivalent of a dividend or interest payment in a foreign
currency. A Portfolio may purchase or sell a foreign currency on a spot (or
cash) basis at the prevailing spot rate in connection with transaction hedging.
     A Portfolio may also enter into contracts to purchase or sell foreign
currencies at a future date ("forward contracts") and may purchase and sell
foreign currency futures contracts, for hedging and not for speculation. A
foreign currency forward contract is a negotiated agreement to exchange currency
at a future time at a rate or rates that may be higher or lower than the spot
rate. Foreign currency futures contracts are standardized exchange-traded
contracts and have margin requirements. For transaction hedging purposes, a
Portfolio may also purchase and sell call and put options on foreign currency
futures contracts and on foreign currencies.
     A Portfolio may engage in position hedging to protect against a decline in
value relative to the U.S. dollar of the currencies in which its portfolio
securities are denominated or quoted (or an increase in value of a currency in
which securities the Portfolio intends to buy are denominated). For position
hedging purposes, a Portfolio may purchase or sell foreign currency futures
contracts and foreign currency forward contracts, and may purchase and sell put
and call options on foreign currency futures contracts and on foreign
currencies. In connection with position hedging, a Portfolio may also purchase
or sell foreign currency on a spot basis.
     Although there is no limit to the amount of a Portfolio's assets that may
be invested in foreign currency exchange and foreign currency forward contacts,
a Portfolio will only enter into such transactions to the extent necessary to
effect the hedging transactions described above.
     INTEREST RATE TRANSACTIONS. In order to attempt to protect the value of a
portfolio from interest rate fluctuations and to adjust the interest-rate
sensitivity of the portfolio, the Global, Quality Income, and Short-Duration
Income Portfolios may enter into interest rate swaps and other interest rate
transactions, such as interest rate caps, floors, and collars. Interest rate
swaps involve the exchange by a Portfolio with another party of their respective
commitments to pay or receive interest (E.G., an exchange of floating rate
payments for fixed rate payments with respect to a notional amount of
principal). The purchase of an interest rate cap entitles the purchaser to
receive payments on a notional principal amount from the party selling the cap
to the extent that a specified index exceeds a predetermined interest rate or
amount. The purchase of a floor entitles the purchaser to receive payments on a
notional principal amount from the party selling the floor to the extent that a
specified index falls below a predetermined interest rate or amount. A collar is
a combination of a cap and a floor that preserves a certain return within a
predetermined range of interest rates or values. Each Portfolio intends to use
these interest rate transactions as a hedge and not as a speculative investment.
A Portfolio's ability to engage in certain interest
                                       20

<PAGE>
rate transactions may be limited by tax considerations. The use of interest rate
swaps and other interest rate transactions is a highly specialized activity
which involves investment techniques and risks different from those associated
with ordinary portfolio securities transactions. If a Portfolio's investment
adviser or sub-adviser is incorrect in its forecasts of market values, interest
rates, or other applicable factors, the investment performance of a Portfolio
would be less favorable than it would have been if this investment technique
were not used.
     INDEXED SECURITIES. The Global Portfolio may invest in indexed securities,
the values of which are linked to currencies, interest rates, commodities,
indices, or other financial indicators. Investment in indexed securities
involves certain risks. In addition to the credit risk of the securities issuer
and normal risks of price changes in response to changes in interest rates, the
principal amount of indexed securities may decrease as a result of changes in
the value of the reference instruments. Also, in the case of certain indexed
securities where the interest rate is linked to a reference instrument, the
interest rate may be reduced to zero and any further declines in the value of
the security may then reduce the principal amount payable on maturity. Further,
indexed securities may be more volatile than the reference instruments
underlying indexed securities.
     PORTFOLIO TURNOVER. The length of time a Portfolio has held a particular
security is not generally a consideration in investment decisions. A change in
the securities held by a Portfolio is known as "portfolio turnover." As a result
of each Portfolio's investment policies, under certain market conditions its
portfolio turnover rate may be higher than that of other mutual funds. Portfolio
turnover generally involves some expense to a Portfolio, including brokerage
commissions or dealer mark-ups and other transaction costs on the sale of
securities and reinvestment in other securities. Such transactions may result in
realization of taxable gains. The portfolio turnover rates for the ten most
recent fiscal years (or for the life of a Portfolio if shorter) are contained in
the section "Financial Highlights." The relatively high portfolio turnover rate
for the Quality Income Portfolio during fiscal 1994 was due in substantial part
to the implementation of the investment program of Pacific Investment Management
Company, which differed from the investment program of the Portfolio's previous
sub-adviser. Commonwealth Investment Counsel expects that the portfolio turnover
rate for the Short-Duration Income Portfolio will not exceed 250% for its first
full fiscal year.
VALUING SHARES
     Each Portfolio calculates the net asset value of a share of each class by
dividing the total value of its assets, less liabilities, by the number of its
shares outstanding. Shares are valued as of the close of regular trading on the
New York Stock Exchange each day the exchange is open. Portfolio securities for
which market quotations are readily available are stated at market value.
Short-term investments that will mature in 60 days or less are stated at
amortized cost, which approximates market value. All other securities and assets
are valued at their fair values. The net asset value for Class A shares will,
from time to time, differ from that of Class B shares due to the variance in
daily net income realized by and dividends paid on each class of shares, and any
differences in the expenses of the different classes.
SALES ARRANGEMENTS
     This Prospectus offers investors two classes of shares which bear sales
charges in different forms and amounts and which bear different levels of
expenses:
     CLASS A SHARES. An investor who purchases Class A shares pays a sales
charge at the time of purchase. As a result, Class A shares are not subject to
any charges when they are redeemed, except that sales at net asset value in
excess of $1 million are subject to a contingent deferred sales charge (a
"CDSC"). Certain purchases of Class
                                       21
 
<PAGE>
A shares qualify for reduced sales charges. Class A shares currently bear no
12b-1 fees. See "How to Buy Shares  -- Class A shares."
     CLASS B SHARES. Class B shares are sold without an initial sales charge,
but are subject to a CDSC of up to 4% if redeemed within five or six years,
depending on the Portfolio. Class B Shares also bear 12b-1 fees. Class B shares
provide an investor the benefit of putting all of the investor's dollars to work
from the time the investment is made, but will have a higher expense ratio and
pay lower dividends than Class A shares due to the 12b-1 fees. See "How to Buy
Shares  -- Class B shares."
     WHICH ARRANGEMENT IS FOR YOU? The decision as to which class of shares
provides a suitable investment for an investor depends on a number of factors,
including the amount and intended length of the investment. Investors making
investments that qualify for reduced sales charges might consider Class A
shares. Investors who prefer not to pay an initial sales charge might consider
Class B shares. For more information about these sales arrangements, consult
your investment dealer or Mentor Distributors. Sales personnel may receive
different compensation depending on which class of shares they sell. Shares may
only be exchanged for shares of the same class of another Mentor fund and for
shares of Cash Resource U.S. Government Money Market Fund. See "How to Exchange
Shares."
HOW TO BUY SHARES
     You can open a Portfolio account with as little as $1,000 and make
additional investments at any time with as little at $100. Investments under
IRAs and investments under qualified retirement plans are subject to a minimum
initial investment of $250. The minimum initial investment may be waived for
current and retired Trustees, and current and retired employees of The Mentor
Funds or Mentor Distributors. You can buy Portfolio shares BY COMPLETING THE
ENCLOSED NEW ACCOUNT FORM and sending it to Mentor Distributors along with a
check or money order, THROUGH YOUR FINANCIAL INSTITUTION, which may be an
investment dealer, a bank, or another institution, OR THROUGH AUTOMATIC
INVESTING. If you do not have a dealer, Mentor Distributors can refer you to
one.
     AUTOMATIC INVESTMENT PLAN. Once you have made the initial minimum
investment in a Portfolio, you can make regular investments of $50 or more on a
monthly or quarterly basis through automatic deductions from your bank checking
account. Application forms are available from your investment dealer or through
Mentor Distributors.
     Shares are sold at a Portfolio's net asset value next determined after
Mentor Distributors receives your purchase order. In most cases, in order to
receive that day's public offering price, Mentor Distributors or your investment
dealer must receive your order before the close of regular trading on the New
York Stock Exchange. If you buy shares through your investment dealer, the
dealer must ensure that Mentor Distributors receives your order before the close
of regular trading on the New York Stock Exchange for you to receive that day's
public offering price.
                                       22
 
<PAGE>
CLASS A SHARES
     The public offering price of Class A shares is the net asset value plus a
sales charge. The Portfolio receives the net asset value. The sales charge
varies depending on the size of your purchase and is allocated between your
investment dealer and Mentor Distributors. The current sales charges for the
GROWTH, CAPITAL GROWTH, STRATEGY, INCOME AND GROWTH, AND GLOBAL PORTFOLIOS are:
<TABLE>
<CAPTION>
                                                                         SALES CHARGE
                                                                             AS A         SALES CHARGE
                                                                         PERCENTAGE OF        AS A
                                                                            PUBLIC        PERCENTAGE OF
                                                                           OFFERING        NET AMOUNT        DEALER
                                                                             PRICE          INVESTED       COMMISSION*
<S>                                                                      <C>              <C>              <C>
Less than $50,000.....................................................        5.75%            5.82%          5.00%
$50,000 but less than $100,000........................................        4.75%            4.99%          4.00%
$100,000 but less than $250,000.......................................        3.75%            3.90%          3.00%
$250,000 but less than $500,000.......................................        3.00%            3.09%          2.50%
$500,000 but less than $1 million.....................................        2.00%            2.04%          1.75%
$1 million or more....................................................           0%               0%       (see below )
</TABLE>
 
     The current sales charges for the QUALITY INCOME AND MUNICIPAL INCOME
PORTFOLIOS are:
<TABLE>
<CAPTION>
                                                                         SALES CHARGE
                                                                             AS A         SALES CHARGE
                                                                         PERCENTAGE OF        AS A
                                                                            PUBLIC        PERCENTAGE OF
                                                                           OFFERING        NET AMOUNT        DEALER
                                                                             PRICE          INVESTED       COMMISSION*
<S>                                                                      <C>              <C>              <C>
Less than $100,000....................................................        4.75%            4.99%          4.00%
$100,000 but less than $250,000.......................................        4.00%            4.17%          3.25%
$250,000 but less than $500,000.......................................        3.00%            3.09%          2.50%
$500,000 but less than $1 million.....................................        2.00%            2.04%          1.75%
$1 million or more....................................................           0%               0%       (see below )
</TABLE>
 
* At the discretion of Mentor Distributors, the entire sales charge may at times
  be reallowed to dealers. The Staff of the Securities and Exchange Commission
  has indicated that dealers who receive more than 90% of the sales charge may
  be considered underwriters.
     Shares of the SHORT-DURATION INCOME PORTFOLIO are sold subject to a sales
charge of 1%.
     There is no initial sales charge on purchases of Class A shares of $1
million or more. However, a CDSC of 1.00% is imposed on redemptions of such
shares within the first year after purchase, based on the lower of the shares'
cost and current net asset value. (A CDSC is also imposed on any shares
purchased without a sales charge as part of a purchase of shares of $1 million
or more under a purchase accumulation plan. Contact Mentor Distributors for more
information.) Any of the shares which were acquired by reinvestment of
distributions will be redeemed without a CDSC, and amounts representing capital
appreciation will not be subject to a CDSC. In determining whether a CDSC is
payable in respect of the shares redeemed, the Portfolio will first redeem
shares not subject to any charge. Mentor Distributors receives the entire amount
of any CDSC you pay.
     You may be eligible to buy Class A shares at reduced sales charges. Consult
your investment dealer or Mentor Distributors for details about Quantity
Discounts and Accumulated Purchases, Letters of Intent, the Reinvestment
Privilege, Concurrent Purchases, and the Automatic Investment Plan. Descriptions
are also included in the New Account Form and in the Statement of Additional
Information. Shares may be sold at net asset value to
                                       23
 
<PAGE>
certain categories of investors, and the CDSC may be waived under certain
circumstances. See "How to Buy Shares  -- General" below.
     Mentor Distributors, the investment advisers, or certain sub-advisers, or
affiliates thereof, at their own expense and out of their own assets, may also
provide other compensation to dealers in connection with sales of shares of the
Portfolios. Compensation may also include, but is not limited to, financial
assistance to dealers in connection with conferences, sales, or training
programs for their employees, seminars for the public, advertising or sales
campaigns, or other dealer-sponsored special events. In some instances, this
compensation may be made available only to certain dealers whose representatives
have sold or are expected to sell significant amounts of shares. Dealers may not
use sales of The Mentor Funds' shares to qualify for this compensation to the
extent such may be prohibited by the laws of any state or any self-regulatory
agency, such as the National Association of Securities Dealers, Inc.
CLASS B SHARES
     Class B shares are sold without an initial sales charge, although a CDSC
will be imposed if you redeem shares within five or six years of purchase,
depending on the Portfolio. The following types of shares may be redeemed
without charge: (i) shares acquired by reinvestment of distributions and (ii)
shares otherwise exempt from the CDSC, as described in "How to Buy Shares  --
General" below. For other shares, the amount of the charge is determined as a
percentage of the lesser of the current market value or the cost of the shares
being redeemed. The amount of the CDSC will depend on the number of years since
you invested in the shares being redeemed and the dollar amount being redeemed,
according to the following table:
<TABLE>
<CAPTION>
                                     CONTINGENT DEFERRED SALES     CONTINGENT DEFERRED SALES
                                     CHARGE AS A PERCENTAGE OF     CHARGE AS A PERCENTAGE OF
                                         APPLICABLE AMOUNT             APPLICABLE AMOUNT
                                     REDEEMED (GROWTH, CAPITAL     REDEEMED (QUALITY INCOME,
                                     GROWTH, STRATEGY, INCOME        MUNICIPAL INCOME, AND
                                      AND GROWTH, AND GLOBAL        SHORT- DURATION INCOME
YEAR SINCE PURCHASE PAYMENT MADE            PORTFOLIOS)                   PORTFOLIOS)
<S>                                  <C>                           <C>
     First                                      4.0%                          4.0%
     Second                                     4.0%                          4.0%
     Third                                      3.0%                          3.0%
     Fourth                                     2.0%                          2.0%
     Fifth                                      1.0%                          1.0%
     Sixth                                      None                          1.0%
     Seventh and Thereafter                     None                          None
</TABLE>
 
     No CDSC is imposed upon the redemption of Class B shares purchased pursuant
to certain asset-allocation plans and that are not otherwise subject to the CDSC
shown above. However, a CDSC of 1.00% is imposed on redemptions of such shares
within the first year after purchase, based on the lower of the shares' cost and
current net asset value. Consult Mentor Distributors for more information.
     Any of the shares which were acquired by reinvestment of distributions will
be redeemed without a CDSC, and amounts representing capital appreciation will
not be subject to a CDSC. In determining whether a CDSC is payable in respect of
the shares redeemed, the Portfolio will first redeem shares not subject to any
charge. For this purpose, the amount of any increase in a shares's value above
its initial purchase price is exempt from the CDSC. Thus, when a share that has
appreciated in value is redeemed during the five- or six-year period, a CDSC is
assessed only on its initial purchase price. For information on how sales
charges are calculated if you exchange
                                       24
 
<PAGE>
your shares, see "How to Exchange Shares." Mentor Distributors receives the
entire amount of any CDSC you pay. Consult Mentor Distributors for more
information.
EXAMPLE:
You have purchased 100 shares at $10 per share. The second year after your
purchase, your investment's net asset value per share has increased by $2 to
$12, and you have gained 10 additional shares through dividend reinvestment. If
you redeem 50 of those shares (including shares purchased through reinvestment
of distributions on those 100 shares) at this time, your CDSC will be calculated
as follows:
<TABLE>
<S>                                                                <C>
(Bullet) Proceeds of 50 shares redeemed at $12 per share           $600
(Bullet) Minus proceeds of 10 shares not subject to a CDSC
         because they were acquired through dividend reinvestment
         (10 x $12)                                                -120
(Bullet) Minus appreciation on remaining shares, also not
         subject to CDSC (40 x $2)                                  -80
(Bullet) Amount subject to a CDSC                                  $400
</TABLE>
 
GENERAL
     A Portfolio may sell its Class A shares without a sales charge and may
waive the CDSC on shares redeemed by The Mentor Funds' current and retired
Trustees (and their families), current and retired employees (and their
families) of Mentor Distributors, each investment adviser or sub-adviser, and
each of their affiliates, registered representatives and other employees (and
their families) of broker-dealers having sales agreements with Mentor
Distributors, employees (and their families) of financial institutions having
sales agreements with Mentor Distributors (or otherwise having an arrangement
with a broker-dealer or financial institution with respect to sales of Portfolio
shares), financial institution trust departments investing an aggregate of $1
million or more in one or more funds in the Mentor family, clients of certain
administrators of tax-qualified plans, employer-sponsored retirement plans,
tax-qualified plans when proceeds from repayments of loans to participants are
invested (or reinvested) in funds in the Mentor family, shares redeemed under a
Portfolio's Systematic Withdrawal Plan (limited to 10% of a shareholder's
account in any calendar year), and "wrap accounts" for the benefit of clients of
financial planners adhering to certain standards established by Mentor
Distributors. A Portfolio may sell shares without a sales charge or a CDSC in
connection with the acquisition by the Portfolio of assets of an investment
company or personal holding company. In addition, the CDSC may be waived in the
case of (i) redemptions of shares held at the time a shareholder dies or becomes
disabled, including the shares of a shareholder who owns the shares with his or
her spouse as joint tenants with right of survivorship, provided that the
redemption is requested within one year of the death or initial determination of
disability; (ii) redemptions in connection with the following retirement plan
distributions: (a) lump-sum or other distributions from a qualified retirement
plan following retirement; (b) distributions from an IRA, Keogh Plan, or
Custodial Account under Section 403(b)(7) of the Internal Revenue Code following
attainment of age 59 1/2; and (c) a tax-free return of an excess contribution to
an IRA; (iii) redemptions by pension or profit sharing plans sponsored by Mentor
Investment Group, Inc. ("Mentor") or an affiliate; and (iv) redemptions by
pension or profit sharing plans of which Mentor or any affiliate serves as a
plan fiduciary. In addition, certain retirement plans with over 200 employees
may purchase Class A shares at net asset value without a sales charge.
     Shareholders of other funds in the Mentor family may be entitled to
exchange their shares for, or reinvest distributions from their funds in, shares
of a Portfolio at net asset value.
                                       25

<PAGE>
     If you are considering redeeming or exchanging shares of a Portfolio or
transferring shares to another person shortly after purchase, you should pay for
those shares with a certified check to avoid any delay in redemption, exchange
or transfer. Otherwise the Portfolio may delay payment until the purchase price
of those shares has been collected or, if you redeem by telephone, until 15
calendar days after the purchase date.
     To eliminate the need for safekeeping, The Mentor Funds will not issue
certificates for your shares unless you request them. Mentor Distributors may,
at its expense, provide additional promotional incentives or payments to dealers
that sell shares of the Portfolios. In some instances, these incentives or
payments may be offered only to certain dealers who have sold or may sell
significant amounts of shares. Certain dealers may not sell all classes of
shares.
     Because of the relatively high cost of maintaining accounts, each Portfolio
reserves the right to redeem, upon not less than 60 days' notice, any Portfolio
account below $500 as a result of redemptions. A shareholder may, however, avoid
such a redemption by a Portfolio by increasing his investment in shares of that
Portfolio to a value of $500 or more during such 60-day period.
     REINVESTMENT PRIVILEGE. If you redeem Class A or B shares of any Portfolio,
you have a one-time right, within 60 days, to reinvest the redemption proceeds
plus the amount of CDSC you paid, if any, at the next-determined net asset
value. Front-end sales charges will not apply to such reinvestment. Mentor
Distributors must be notified in writing by you or by your financial institution
of the reinvestment for you to recover the CDSC, or to eliminate the front-end
sales charge. If you redeem shares in any of the Portfolios, there may be tax
consequences.
DISTRIBUTION PLANS (CLASS B SHARES)
     Mentor Distributors, Inc. (formerly, Cambridge Distributors, Inc.), having
its principal offices at 901 East Byrd Street, Richmond, Virginia 23219, is the
principal distributor for the Portfolios' shares.
     Each of the Portfolios has adopted a Distribution Plan under Rule 12b-1
with respect to its Class B shares (each, a "Class B Plan") providing for
payments by the Portfolio to Mentor Distributors from the assets attributable to
the Portfolio's Class B shares at the annual rate set out under "Summary of
Portfolio Expenses  -- Annual Portfolio Operating Expenses" above. The Trustees
may reduce the amount of payments or suspend the Class B Plan for such periods
as they may determine. Mentor Distributors also receives the proceeds of any
CDSC imposed on redemptions of shares.
     Payments under the Plans are intended to compensate Mentor Distributors for
services provided and expenses incurred by it as principal underwriter of a
Portfolio's Class B shares. Mentor Distributors may select financial
institutions (such as a broker/dealer or bank) to provide sales support services
as agents for their clients or customers who beneficially own Class B shares of
the Portfolios. Financial institutions will receive fees from Mentor
Distributors based upon Class B shares owned by their clients or customers. The
schedules of such fees and the basis upon which such fees will be paid will be
determined from time to time by Mentor Distributors. Mentor Distributors may
suspend or modify such payments to dealers. Such payments are also subject to
the continuation of the relevant Class B Plan, the terms of any agreements
between dealers and Mentor Distributors, and any applicable limits imposed by
the National Association of Securities Dealers, Inc.
                                       26

<PAGE>
HOW TO SELL SHARES
     You can sell your shares in any Portfolio to the Portfolio any day the New
York Stock Exchange is open, either directly to the Portfolio or through your
investment dealer. The Portfolio will only redeem shares for which it has
received payment.
     SELLING SHARES DIRECTLY TO A PORTFOLIO. Send a signed letter of instruction
or stock power form, along with any certificates that represent shares you want
to sell, to The Mentor Funds, c/o Boston Financial Data Services, Inc. ("BFDS"),
2 Heritage Drive, North Quincy, Massachusetts 02171. The price you will receive
is the net asset value next calculated after your request is received in proper
form less any applicable CDSC. In order to receive that day's net asset value,
your request must be received before the close of regular trading on the New
York Stock Exchange. If you sell shares having a net asset value of $50,000 or
more or if you want your redemption proceeds payable to you at a different
address or to someone else, the signatures of registered owners or their legal
representatives must be guaranteed by a bank, broker-dealer, or certain other
financial institutions. See the Statement of Additional Information for more
information about where to obtain a signature guarantee. Stock power forms are
available from your investment dealer, Mentor Distributors, and many commercial
banks. Mentor Distributors usually requires additional documentation for the
sale of shares by a corporation, partnership, agent, or fiduciary, or surviving
joint owner. Contact Mentor Distributors for details.
     SELLING SHARES BY TELEPHONE. You may use Mentor Distributors' Telephone
Redemption Privilege to redeem shares from your account unless you have notified
Mentor Distributors of an address change within the preceding 15 days. Unless an
investor indicates otherwise on the New Account Form, Mentor Distributors will
be authorized to act upon redemption and transfer instructions received by
telephone from a shareholder, or any person claiming to act as his or her
representative, who can provide Mentor Distributors with his or her account
registration and address as it appears on Mentor Distributors' records. Mentor
Distributors will employ these and other reasonable procedures to confirm that
instructions communicated by telephone are genuine; if it fails to employ
reasonable procedures, Mentor Distributors may be liable for any losses due to
unauthorized or fraudulent instructions. For information, consult Mentor
Distributors. During periods of unusual market changes and shareholder activity,
you may experience delays in contacting Mentor Distributors by telephone in
which case you may wish to submit a written redemption request, as described
above, or contact your investment dealer, as described below. The Telephone
Redemption Privilege may be modified or terminated without notice.
     SELLING SHARES THROUGH YOUR INVESTMENT DEALER. Your dealer must receive
your request before the close of regular trading on the New York Stock Exchange
to receive that day's net asset value. Your dealer will be responsible for
furnishing all necessary documentation to Mentor Distributors, and may charge
you for its services.
     The Portfolio generally sends you payment for your shares the business day
after your request is received. Under unusual circumstances, the Portfolio may
suspend redemptions, or postpone payment for more than seven days, as permitted
by federal securities law.
     SYSTEMATIC WITHDRAWAL PROGRAM. You may redeem Class A or B shares of a
Portfolio through periodic withdrawals for a predetermined amount. Only
shareholders with accounts valued at $10,000 or more are eligible to
participate. Class B shares redeemed under the Systematic Withdrawal Program are
not subject to a CDSC, but the aggregate withdrawals of Class B shares in any
year are limited to 10% of the value of the account at the time of enrollment.
Contact Mentor Distributors for more information.
                                       27
 
<PAGE>
HOW TO EXCHANGE SHARES
     Except as otherwise described below, you can exchange your shares in a
Portfolio worth at least $1,000 for shares of the same class of any other
Portfolio at net asset value beginning 15 days after purchase. You may also
exchange shares of any Portfolio for shares of Cash Resource U.S. Government
Money Market Fund (the "Cash Fund"). If you exchange shares subject to a CDSC,
the transaction will not be subject to the CDSC. However, when you redeem the
shares acquired through the exchange, the redemption may be subject to the CDSC,
depending upon when you originally purchased the shares, using the schedule of
any Portfolio into or from which you have exchanged your shares that would
result in your paying the highest CDSC applicable to your class of shares. For
purposes of computing the CDSC, the length of time you have owned your shares
will be measured from the date of original purchase and will not be affected by
any exchange. (If you exchange your shares for shares of the Cash Fund, the
period when you hold shares of the Cash Fund will be included in calculating the
length of time you have owned the shares subject to the CDSC; alternatively,
Mentor Distributors may elect not to include the length of time you hold shares
of the Cash Fund, in which case any CDSC payable on redemption of your shares
will be reduced by the amount of any payment collected by the Cash Fund under
its distribution plan in respect of those shares. Contact Mentor Distributors
for information.)
     To exchange your shares, simply complete an Exchange Authorization Form and
send it to The Mentor Funds, c/o BFDS, 2 Heritage Drive, North Quincy,
Massachusetts 02171. Exchange Authorization Forms are available by calling or
writing Mentor Distributors. For federal income tax purposes, an exchange is
treated as a sale of shares and generally results in a capital gain or loss. A
Telephone Exchange Privilege is currently available. Mentor Distributors'
procedures for telephonic transactions are described above under "How to Sell
Shares." The Telephone Exchange Privilege is not available if you were issued
certificates for shares which remain outstanding. Ask your investment dealer or
Mentor Distributors for a prospectus relating to the Cash Fund. Shares of
certain of the Portfolios may not available to residents of all states.
     The exchange privilege is not intended as a vehicle for short-term trading.
Excessive exchange activity may interfere with portfolio management and have an
adverse effect on all shareholders. In order to limit excessive exchange
activity and in other circumstances where Mentor Distributors or the Trustees
believe doing so would be in the best interests of a Portfolio, the Portfolio
reserves the right to revise or terminate the exchange privilege, limit the
amount or number of exchanges, or reject any exchange. Shareholders would be
notified of any such action to the extent required by law. Consult Mentor
Distributors before requesting an exchange by calling 1-800-382-0016. See the
Statement of Additional Information to find out more about the exchange
privilege.
     Exchanges to and from the Mentor Growth, Strategy, and Short-Duration
Income Portfolios are not available at the date of this Prospectus (although
exchanges AMONG those Portfolios are currently available). Consult Mentor
Distributors as to the availability of such exchanges in the future.
DISTRIBUTIONS AND TAXES
     Dividends, if any, are declared daily and paid monthly for the Quality
Income, Short-Duration Income, and Municipal Income Portfolios. Any dividends
for the other Portfolios are declared and paid as follows: quarterly for the
Income and Growth Portfolio; semi-annually for the Capital Growth Portfolio; and
annually for the Growth, Strategy, and Global Portfolios. Each Portfolio will
distribute its net capital gain, if any, at least annually. All dividends and
distributions of net capital gain will be invested in additional shares of the
same class of a Portfolio unless a shareholder requests in writing to receive
the dividend or distribution in cash.
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     Each Portfolio intends to qualify as a "regulated investment company" for
federal income tax purposes and to meet all other requirements that are
necessary for it to be relieved of federal taxes on income and gains it
distributes to shareholders.
     All Portfolio distributions, other than exempt-interest dividends, will be
taxable to you as ordinary income, except that any distributions of net capital
gain will be taxed as long-term capital gain, regardless of how long you have
held the shares (although the loss on a sale of shares held for six months or
less will be treated as long-term capital loss to the extent of any capital gain
distribution received with respect to those shares). Distributions will be
taxable as described above whether received in cash or in shares through the
reinvestment of distributions. Early in each year The Mentor Funds will notify
you of the amount and tax status of distributions paid to you by your Portfolio
for the preceding year.
     The foregoing is a summary of certain federal income tax consequences of
investing in a Portfolio. You should consult your tax adviser to determine the
precise effect of an investment in a Portfolio on your particular tax situation.
     To permit the Quality Income and Short-Duration Income Portfolios to
maintain more stable monthly distributions, each of those Portfolios may from
time to time pay out less than the entire amount of net investment income earned
in any particular period. Any such amount retained by a Portfolio would be
available to stabilize future distributions. As a result, the distributions paid
by either Portfolio for any particular period may be more or less than the
amount of net investment income actually earned by the Portfolio during that
period.
     MUNICIPAL INCOME PORTFOLIO. Distributions designated by the Portfolio as
"exempt-interest dividends" are not generally subject to federal income tax. The
Portfolio may engage in investment activities that produce taxable income, the
distribution of which will be taxable to shareholders as described below. If you
receive Social Security and railroad retirement benefits, you should consult
your tax adviser to determine what effect, if any, an investment in the
Portfolio may have on the taxation of your benefits. In addition, an investment
in the Portfolio may result in liability for federal alternative maximum tax and
for state and local taxes, both for individual and corporate shareholders.
MANAGEMENT OF THE MENTOR FUNDS
     The Trustees of The Mentor Funds are responsible for generally overseeing
the conduct of its business. COMMONWEALTH ADVISORS, INC. (formerly, Cambridge
Investment Advisors, Inc.) acts as investment manager of each of the Portfolios
other than the Growth, Short-Duration Income, Global, and Strategy Portfolios.
CHARTER ASSET MANAGEMENT, INC. acts as investment manager to the Growth
Portfolio; COMMONWEALTH INVESTMENT COUNSEL, INC. acts as investment manager to
the Short-Duration Income Portfolio; MENTOR PERPETUAL ADVISORS, L.L.C. acts as
investment manager to the Global Portfolio; WELLESLEY ADVISORS, INC. acts as
investment manager to the Strategy Portfolio. Each of the investment advisers,
except Mentor Perpetual, is a wholly-owned subsidiary of Mentor Investment
Group, Inc. (formerly Investment Management Group, Inc.) ("Mentor"), which is a
wholly-owned subsidiary of Wheat First Butcher Singer, Inc. ("Wheat First
Butcher Singer"). Wheat First Butcher Singer, through other subsidiaries, also
engages in securities brokerage, investment banking, and related businesses.
Mentor Perpetual is owned equally by Mentor and Perpetual plc, a diversified
financial services holding company. Each of the investment advisers is located
at 901 East Byrd Street, Richmond, Virginia.
     Each of the Portfolios pays management fees to its manager at the annual
rates described above under "Summary of Portfolio Expenses  -- Annual Portfolio
Operating Expenses", except that the Global Portfolio pays fees equal to 1.10%
of its average daily net assets up to and including $75 million and 1.00% of the
average daily net assets of the Portfolio in excess of $75 million. The advisory
fees paid by the Growth, Capital Growth, Income
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and Growth, and Global Portfolios are higher than those paid by many other
mutual funds. An investment manager may from time to time voluntarily waive some
or all of its investment advisory fees and may terminate any such voluntary
waiver of some or all of its investment advisory fees at any time in its sole
discretion.
     Commonwealth Advisors was incorporated under the laws of Virginia in 1991.
All of its directors and officers serve as directors or officers of other
investment advisory firms affiliated with Wheat First Butcher Singer.
Commonwealth Advisors has served as investment adviser to each of the Portfolios
identified above since their inception; however, prior to April 12, 1995, all
investment decisions for each of the Portfolios were made by sub-advisers to
those Portfolios. For certain of the Portfolios, Commonwealth Advisors now
furnishes a continuous investment program. All of the investment advisory
personnel of Commonwealth Advisors have substantial experience in the investment
advisory field and provide advisory services to other mutual funds in the Mentor
family.
     Charter is a registered investment adviser with total assets under
management exceeding $353 million. Charter provides investment management and
advisory services to a wide variety of individual and institutional clients.
Commonwealth Investment Counsel currently has assets under management in excess
of $3.7 billion, and serves as investment adviser to Cash Resource Trust and
Mentor Institutional Trust, both open-end investment companies, and Mentor
Income Fund, Inc., a closed-end investment company. Mentor Perpetual is a newly
organized investment advisory firm owned equally by Perpetual plc and Mentor.
The Perpetual organization currently serves as investment adviser for assets of
more than $6.0 billion. Its clients include 28 unit investment trusts and other
public investment pools for over 150 clients, including private individuals,
charities, pension plans and life assurance companies. Wellesley is a newly
organized investment advisory firm with assets under management of approximately
$215 million. Each of its directors and officers serves as director and officer
of other investment advisory firms affiliated with Wheat First Butcher Singer.
     All investment decisions made for the Portfolios by Commonwealth Advisors,
Charter, Commonwealth Investment Counsel, Mentor Perpetual and Wellesley are
made by investment committees at the respective firms, made up of investment
professionals at those firms.
THE SUB-ADVISERS
     VAN KAMPEN AMERICAN CAPITAL MANAGEMENT INC. ("Van Kampen") serves as
sub-adviser to the Municipal Income Portfolio. Van Kampen, located at One
Parkview Plaza, Oakbrook Terrace, Illinois 60181, was incorporated in 1990 and
commenced operations in 1992. Van Kampen currently provides investment advice to
a wide variety of individual, institutional, and investment company clients. Van
Kampen is a wholly-owned subsidiary of Van Kampen American Capital, Inc., which,
in turn, is a wholly-owned subsidiary of VK/AC Holding, Inc. VK/AC Holding, Inc.
is indirectly controlled by Clayton & Dubilier Associates IV Limited
Partnership, the general partners of which are Joseph L. Rice, III, B. Charles
Ames, William A. Barby, Alberto Cribiore, Donald J. Gogel, Leon J. Hendrix, Jr.,
Hubbard C. Howe, and Andrall E. Pearson, each of whom is a principal of Clayton,
Dubilier & Rice, Inc., a New York-based private investment firm. As of March 31,
1995, Van Kampen, together with its affiliates, managed or supervised
approximately $51.7 billion of assets.
     David C. Johnson and William V. Grady are co-managers of the Municipal
Income Portfolio. Mr. Johnson is First Vice President of Van Kampen. Mr. Johnson
joined Van Kampen American Capital in 1989 and has served as portfolio manager
of the Municipal Income Portfolio since that time. Mr. Grady is Vice President
of Van Kampen, which he joined in 1992. He is portfolio manager for several
national and specialty state portfolios. He was previously associated with
Municipal Bond Investors Assurance Corporation where he structured insured
                                       30
 
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tax-exempt financings for two years, and was employed by CIGNA Investments Inc.
from 1984-1990 as a portfolio manager and research analyst. For its services as
sub-adviser, Commonwealth Advisors pays Van Kampen a fee at the annual rate of
0.30% of the Portfolio's average net assets.
     WELLINGTON MANAGEMENT COMPANY ("WMC") serves as sub-adviser to the Income
and Growth Portfolio. WMC, located at 75 State Street, Boston, Massachusetts
02109, is a professional investment counseling firm which provides investment
services to investment companies, employee benefit plans, endowments,
foundations, and other institutions and individuals. As of September 30, 1994,
WMC had discretionary investment management authority with respect to
approximately $82.0 billion in assets. WMC and its predecessor organizations
have provided investment advisory services to investment companies since 1933
and to investment counseling clients since 1960. For its services as
sub-adviser, Commonwealth Advisors pays WMC a fee at the annual rate expressed
as a percentage of the Portfolio's assets as follows: 0.325% on the first $50
million in assets, 0.275% on the next $150 million in assets, 0.225% on the next
$300 million in assets, and 0.200% on assets over $500 million.
     Paul D. Kaplan, Senior Vice President of WMC, and Arnold C. Schneider III,
Senior Vice President of WMC, have served as portfolio managers to the Portfolio
since its inception in May 1993. Mr. Kaplan manages the fixed-income and U.S.
Government securities portion of the Portfolio, and Mr. Schneider manages the
equity securities portion of the Portfolio. Mr. Kaplan has been a portfolio
manager with WMC since 1982 and Mr. Schneider has been a portfolio manager with
WMC since 1987.
     Subject to the general oversight of the Trustees, each Portfolio's
investment adviser or sub-adviser manages its respective Portfolio in accordance
with the stated policies of the Portfolio. Each makes investment decisions for a
Portfolio and places the purchase and sale orders for the Portfolios'
transactions. In addition, each pays the salaries of all officers and employees
who are employed by both it and The Mentor Funds. The Mentor Funds pays all
expenses not assumed by the investment advisers and sub-advisers, or Mentor,
including, among other things, Trustees' fees, auditing, accounting, legal,
custodial, investor servicing, and shareholder reporting expenses, and payments
under the Portfolios' Class B Plans.
     In selecting broker-dealers, the investment adviser or sub-adviser may
consider research and brokerage services furnished to it and its affiliates.
Subject to seeking the best overall terms available, a Portfolio's investment
adviser or sub-adviser may consider sales of shares of The Mentor Funds (and, if
permitted by law, of the other funds in the Mentor family) as a factor in the
selection of broker-dealers.
     Until April 12, 1995, Scudder, Stevens & Clark served as sub-adviser to the
Perpetual Global Portfolio; Phoenix Investment Counsel, Inc. served as
sub-adviser to the Mentor Capital Growth Portfolio; and Pacific Investment
Management Company served as sub-adviser to the Mentor Quality Income Portfolio
(when that Portfolio was known as the Cambridge Government Income Portfolio).
OTHER SERVICES
     ADMINISTRATIVE SERVICES. Mentor Investment Group, Inc., located at 901 East
Byrd Street, Richmond, Virginia 23219, provides each Portfolio with certain
administrative personnel and services necessary to operate each Portfolio, such
as legal and accounting services. Mentor provides these services to each of the
Portfolios at an annual rate of 0.10% of each Portfolio's average net assets.
     SHAREHOLDER SERVICING PLAN. The Mentor Funds has adopted a Shareholder
Servicing Plan (the "Service Plan") with respect to Class A and Class B shares
of each Portfolio. Under the Service Plan, financial institutions will enter
into shareholder service agreements with the Portfolios to provide
administrative support services to
                                       31
 
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their customers who are Portfolio shareholders. In return for providing these
support services, a financial institution may receive payments from one or more
Portfolios at a rate not exceeding 0.25% of the average daily net assets of the
Class A or Class B shares of the particular Portfolio or Portfolios. These
administrative services may include, but are not limited to, the following
functions; providing office space, equipment, telephone facilities, and various
personnel, including clerical, supervisory, and computer personnel, as necessary
or beneficial to establish and maintain shareholder accounts and records;
processing purchase and redemption transactions and automatic investments of
client account cash balances; answering routine client inquiries regarding the
Portfolios; assisting clients in changing dividend options, account
designations, and addresses; and providing such other services as the Portfolios
reasonably request.
     In addition to receiving payments under the Service Plan, financial
institutions may be compensated by a Portfolio's investment adviser, a
sub-adviser, and/or Mentor, or affiliates thereof, for providing administrative
support services to holders of Class A or Class B shares of the Portfolios.
These payments will be made directly by a Portfolio's investment adviser,
sub-adviser, and/or Mentor and will not be made from the assets of any of the
Portfolios.
GENERAL
     The Mentor Funds is a Massachusetts business trust organized on January 20,
1992. A copy of the Agreement and Declaration of Trust of The Mentor Funds,
which is governed by Massachusetts law, is on file with the Secretary of State
of the Commonwealth of Massachusetts.
     The Mentor Funds is an open-end, diversified, series management investment
company with an unlimited number of authorized shares of beneficial interest.
Shares of The Mentor Funds may, without shareholder approval, be divided into
two or more series of shares representing separate investment portfolios. Any
such series of shares may be further divided without shareholder approval into
two or more classes of shares having such preferences and special or relative
rights and privileges as the Trustees determine. The Mentor Funds' shares are
currently divided into ten series, eight of which are being offered by this
Prospectus. Each series issues shares of two classes, Class A and Class B. Each
share has one vote, with fractional shares voting proportionally. Shares of each
series will vote together as a single series except when required by law or
determined by the Trustees. Shares of each Portfolio are freely transferable,
are entitled to dividends as declared by the Trustees, and, if the Portfolio
were liquidated, would receive the net assets of that Portfolio. The Mentor
Funds may suspend the sale of shares at any time and may refuse any order to
purchase shares. Although The Mentor Funds is not required to hold annual
meetings of its shareholders, shareholders have the right to call a meeting to
elect or remove Trustees, or to take other actions as provided in the Agreement
and Declaration of Trust.
     In June, 1995, Mentor Growth Fund, Mentor Strategy Fund, and Mentor
Short-Duration Income Fund, series of shares of Mentor Series Trust, a
Massachusetts business trust, were reorganized as the Mentor Growth Portfolio,
Mentor Strategy Portfolio, and Mentor Short-Duration Income Portfolio,
respectively.
     Investors Fiduciary Trust Company, 127 West 10th Street, Kansas City,
Missouri 64105, serves as custodian for each Portfolio, except that State Street
Bank & Trust Company, P.O. Box 8602, Boston, Massachusetts 02266 serves as
custodian for the Global Portfolio. Boston Financial Data Services, Inc. is
transfer agent and dividend disbursing agent for the Portfolios. The Trust's
independent auditors are KPMG Peat Marwick LLP, 99 High Street, Boston,
Massachusetts 02110.
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PERFORMANCE INFORMATION
     Yield and total return data may from time to time be included in
advertisements about the Portfolios. A Portfolio's "yield" is calculated by
dividing the Portfolio's annualized net investment income per share during a
recent 30-day period by the maximum public offering price per share on the last
day of that period. "Total return" for the life of a Portfolio through the most
recent calendar quarter represents the actual rate of return on an investment of
$1,000 in the Portfolio reflecting (in the case of Class B shares) the deduction
of any applicable CDSC. Total return may also be presented for other periods or
based on investment at reduced sales charge levels or at net asset value. Any
quotation of total return or yield for a Portfolio's shares not reflecting a
CDSC would be reduced if such sales charges were reflected. Quotations of yield
or total return for a period when an expense limitation was in effect will be
greater than if the limitation had not been in effect. A Portfolio's performance
may be compared to various indices. See the Statement of Additional Information
for more information. Information may be presented in advertisements about a
Portfolio describing the background and professional experience of the
Portfolio's investment adviser, sub-adviser, or any portfolio manager.
     All data is based on a Portfolio's past investment results and does not
predict future performance. Investment performance, which will vary, is based on
many factors, including market conditions, the composition of the Portfolio, and
the Portfolio's operating expenses. Investment performance also often reflects
the risks associated with a Portfolio's investment objective and policies. These
factors should be considered when comparing a Portfolio's investment results to
those of other mutual funds and other investment vehicles.
     As permitted by applicable law, performance information for a Portfolio
whose investment adviser or sub-adviser has changed may be presented only for
periods after the change was effected.
                                       33
 
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                                                                        APPENDIX
MOODY'S INVESTORS SERVICE, INC., LONG-TERM MUNICIPAL DEBT RATINGS
     AAA -- Bonds which are rated Aaa are judged to be of the best quality. They
carry the smallest degree of investment risk and are generally referred to as
"gilt edge." 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 -- 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 the best bonds because margins of
protection may not be as large as in Aaa securities 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 -- 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 -- 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 lacking or may be characteristically
unreliable over any great length of time. Such bonds lack outstanding investment
characteristics and in fact have speculative characteristics as well. Bonds
which are 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 both good
and bad times over the future. Uncertainty of position characterizes bonds in
this class.
     B -- 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.
     NOTE: Those bonds in the Aa, A, Baa, Ba and B groups which Moody's believes
possess the strongest investment attributes are designated by the symbols Aa1,
A1, Baa1, Ba1 and B1.
STANDARD AND POOR'S CORPORATION LONG-TERM MUNICIPAL DEBT RATINGS
     AAA -- Debt rated AAA has the highest rating assigned by Standard & Poor's.
Capacity to pay interest and repay principal is extremely strong.
     AA -- Debt rated AA has a very strong capacity to pay interest and repay
principal and differs from the higher rated issues only in small degree.
     A -- Debt rated A has a strong capacity to pay interest and repay principal
although it is somewhat more susceptible to the adverse effects of changes in
circumstances and economic conditions than debt in higher rated categories.
     BBB -- Debt rated BBB is regarded as having an adequate capacity to pay
interest and repay principal. Whereas it normally exhibits adequate protection
parameters, adverse economic conditions or changing circumstances are more
likely to lead to a weakened capacity to pay interest and repay principal for
debt in this category than in higher rated categories.
     BB, B, CCC, CC -- Debt rated BB, B, CCC and CC is regarded, on balance, as
predominantly speculative with respect to capacity to pay interest and repay
principal in accordance with the terms of the obligation. BB indicates the
lowest degree of speculation and CC the highest degree of speculation. While
such debt will likely
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<PAGE>
have some quality and protective characteristics, these are outweighed by large
uncertainties of major risk exposure to adverse conditions.
     PLUS (+) OR MINUS (-): The ratings from "A" to "B" may be modified by the
addition of a plus or minus sign to show relative standing within the major
rating categories.
MOODY'S INVESTORS SERVICE, INC., SHORT-TERM LOAN RATINGS
     MIG1/VMIG1 -- This designation denotes best quality. There is present
strong protection by established cash flows, superior liquidity support or
demonstrated broadbased access to the market for refinancing.
     MIG2/VMIG2 -- This designation denotes high quality. Margins of protection
are ample although not so large as in the preceding group.
STANDARD AND POOR'S CORPORATION MUNICIPAL NOTE RATINGS
     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.
FITCH INVESTORS SERVICE, INC., SHORT-TERM DEBT RATINGS
     F-1+ -- Exceptionally Strong Credit Quality. Issues assigned this rating
are regarded as having the strongest degree of assurance for timely payment.
     F-1 -- Very Strong Credit Quality. Issues assigned this rating reflect an
assurance of timely payment only slightly less in degree than issues rated F-1+.
     F-2 -- Good Credit Quality. Issues carrying this rating have a satisfactory
degree of assurance for timely payment.
MOODY'S INVESTORS SERVICE, INC., COMMERCIAL PAPER RATINGS
     P-1 -- Issuers rated PRIME-1 (or related supporting institutions) have a
superior capacity for repayment of short-term promissory obligations. PRIME-1
repayment capacity will normally be evidenced by the following characteristics:
conservative capitalization structures with moderate reliance on debt and ample
asset protection; broad margins in earning coverage of fixed financial charges
and high internal cash generation; and well-established access to a range of
financial markets and assured sources of alternate liquidity.
     P-2 -- Issuers rated PRIME-2 (or related supporting institutions) have a
strong capacity for repayment of short-term promissory obligations. This will
normally be evidenced by many of the characteristics cited above but to a lesser
degree. Earnings trends and coverage ratios, while sound, will be more subject
to variation. Capitalization characteristics, while still appropriate, may be
more affected by external conditions. Ample alternate liquidity is maintained.
STANDARD AND POOR'S CORPORATION COMMERCIAL PAPER RATINGS
     A-1 -- This designation indicates that the degree of safety regarding
timely payment is either overwhelming or very strong. Those issues determined to
possess overwhelming safety characteristics are denoted with a plus (+) sign
designation.
     A-2 -- Capacity for timely payment on issues with this designation is
strong. However, the relative degree of safety is not as high as for issues
designated A-1.
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<PAGE>

THE MENTOR FUNDS
PROSPECTUS
AN OPEN-END MANAGEMENT
INVESTMENT COMPANY

(Bullet) Mentor Growth Portfolio

(Bullet) Mentor Capital Growth Portfolio

(Bullet) Mentor Strategy Portfolio

(Bullet) Mentor Income and Growth Portfolio

(Bullet) Mentor Perpetual Global Portfolio

(Bullet) Mentor Quality Income Portfolio

(Bullet) Mentor Municipal Income Portfolio

(Bullet) Mentor Short-Duration Income Portfolio

May 30, 1995, as revised
September 20, 1995

[MENTOR FUNDS LOGO]



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