WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000867955
<NAME> DREYFUS MUNICIPAL CASH MANAGEMENT PLUS- PARTICIPANT SHARES
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JAN-31-2000
<PERIOD-END> JUL-31-2000
<INVESTMENTS-AT-COST> 220676
<INVESTMENTS-AT-VALUE> 220676
<RECEIVABLES> 1640
<ASSETS-OTHER> 3872
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 226188
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 57
<TOTAL-LIABILITIES> 57
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 226301
<SHARES-COMMON-STOCK> 8888
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (179)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 8888
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 3971
<OTHER-INCOME> 0
<EXPENSES-NET> 260
<NET-INVESTMENT-INCOME> 3711
<REALIZED-GAINS-CURRENT> (1)
<APPREC-INCREASE-CURRENT> 9
<NET-CHANGE-FROM-OPS> 3719
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (73)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 19100
<NUMBER-OF-SHARES-REDEEMED> (10285)
<SHARES-REINVESTED> 73
<NET-CHANGE-IN-ASSETS> 48245
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> (178)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 194
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 260
<AVERAGE-NET-ASSETS> 4029
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> .017
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (.017)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> .006
</TABLE>