99 PRELIMINARY CATALOGUE OF PLANTS. 



POTAMBiE. 

 Potamogeton, Tourn. ... Pondweed. 



P. natans, L. Ponds. Quite common throughout. Eu. 



P. Claytonii, Tuckerman. Ponds and slow streams. Frequent. 



P. Spirallus, Tuckerman. (?) Tidal mud, Delaware River. Camden, 

 C. F. Parker. 



P. hybridus, Michx. Ponds and streams. Frequent. 



P. pulcher, Tuckerman. Scarce. Shallow pond, Atlantic City and 

 near Elmer, Salem Co., C. F. Parker ; Tom's River, T. C. Porter. 



P. amplifolius, Tuckerman. Andover and Swartswood Lake, T. C. 

 Porter ; Hackensack River, C. F. Austin ; near Waterloo, Sussex Co., 

 A. P. Garber; tidal mud, Delaware River at Camden, C. F. Parker; 

 upper Passaic River, H. H. Rusby. 



P. gramineus, L. Waters of the Hackensack River, C. F. Austin 

 in Bull. Torr. Bot. Club, III., 53. Eu. 



P. lucens, L. Waters of the Hackensack River, C. F. Austin in 

 Bull. Torr. Bot. Club, HI., 53; upper part of Monmouth Co., 0. R. 

 Willis in Catalogue. Eu. 



P. perfoliatus, L. Ponds and slow streams. Quite common through- 

 out. Eu. 



P. crispus, L. Morris Co., C. F. Austin ; Passaic, W. H. Leggett; 

 Lake Hopatcong and Musconetcong Creek, T. C. Porter; streams at 

 Plainfield, common, Frank Tweedy; ditches and tidal mud, Delaware 

 River, Camden, C. F. Parker. Eu. 



Far. genimiparus, Morong. Ditches. Camden, L C. Martindale. 



P. compressus, L. Rare. Hackensack River, C. F. Austin ; near 

 Waterloo Station, M. & E. R. R., and Musconetcong Creek, T. C. 

 Porter. Eu. 



P. pauciflorus, Pursh. Ponds or slow streams. Frequent. 



P. pusillus, L. Hackensack River and tributary creeks, W. H. 

 Leggett; Budd's Lake, Morris Co., T. C. Porter. Probably quite com- 

 mon. 



P. Tuckermani, Robbins. Ponds, pine barrens, C. F. Austin ; near 

 Atsion, W. M. Canby. Rare. 



P. pectinatus, L. Hackensack River, C. F. Austin ; Monmouth Co., 

 Dr. John Torrey in Willis Catalogue. Eu. 



P. Robbinsii, Oakes. Scarce. Hackensack River, C. F. Austin ; 

 Budd's Lake, and Swartswood Lake, Morris Co., T. C. Porter. 



Ruppia, L Ditch- GRASS. 



R. maritima, L. Shallow brackish water along the coast, but 

 scarce. Tom's River, P. D. Knieskern. Eu. 



