22 BULLETIN OF THE UNITED STATES FISH COMMISSION. 



LIST OF WATE« PLA1VTS FOR CARP PONDS. 



By LESTER F. WARD. 



[The following list embraces only such plants as were named in a 

 list furnished by Mr. Kudolph Hessel, Superintendent of the Carp 

 Ponds. The names given in that list where obsolete are placed in par- 

 entheses, the modern ones standing before them. The vernacular name 

 of each is added whenever it is known, and the localities of the Ameri- 

 can species are given according to the best authorities. When found 

 in the vicinity of Washington the particular locality is mentioned. In 

 the case of exotics the general region of the globe is stated.] 



BANUNCULACE^. 



Crowfoot family. 



Ranunculus aquatilis, L. — White Water-Crowfoot. 



The type is rare, but the var. trichophyllus, Gray, is common in the 

 United States. The var. heterophyllus, DC. (B. heterophyllus, Weber), 

 is chiefly a European form. 

 Banunculus multi/idus, Pursh. (Banunculus fluviatilis, Bigel). — Yellow 

 Water-Crowfoot. 

 East New England to South Pennsylvania, Illinois, and Northwest. 

 CaUha palustris, L. — Marsh Marigold. Cowslips. 

 Common North and West. 



NYMPH^ACE^. 



Water-Lily family. 



Cabomba Caroliniana, Gray. (Not in original list, but known to be in 

 the carp ponds. Probably wrongly named.) 

 Florida to North Carolina and westward. 

 Xymphcca odorata^ Ait. — Sweet-scented white Water-Lily. 



Found at Great Falls and below the Long Bridge. Common in the 

 Northern States. 

 Xymphcea tuberosa, Paine. — Tuber-bearing Water-Lily. 



Western New York to Michigan, Illinois, and probably in the South- 

 ern States. 

 Ntiphar luteum, Smith. — Smaller yellow Pond-Lily. 



Chiefly European; the var. pumilum, Gray (N.pumilum } Smith), is 

 not rare northward in the United States. 



