CATALOGUE OF PLANTS. 257 
POTAMOGETON, L. 
Pond-weed. 
. natans, L. 
Ponds. Apparently quite common throughout the State. 
. Oakesianus, Robbins. 
Bergen: In shallow water at Tenafly—Austin. Atlantic: 
Estelville—C. A. Gross. Burlington: Brown’s Mills—E. J. 
Pond. 
. Pennsylvanicus, Cham. (P. Claytonii, Tuck.) 
In ponds and slow streams, Frequent throughout the State. 
. Spirillus, Tuck. 
Camden: In tidal mud, Delaware River—Parker. Warren: 
In the Delaware at Belvidere—Britton. Bergen: Closter— 
Austin. Passaic: Paterson—Leggett. Morris: Lake Hopat- 
cong, and Sussex: Cranberry Reservoir and Stump Pond near 
Branchville—Britton. 
. hybridus, Michx. e 
Ponds and streams. Frequent throughout the State. Often 
without any floating leaves. 
. fluitans, Roth. (P. lonchites, Tuck.) 
Warren: In the Delaware River near Phillipsburg—Porter ; 
Belvidere — Britton. Sussex: Swartswood Lake — Britton. 
Salem: In ditches—Commons. 
. pulcher, Tuck. 
Atlantic: In a pond at Atlantic City, and Salem: Elmer— 
Parker. Ocean: Toms River—Porter. 
. amplifolius, Tuck. 
In deep water. Sussex: Andover and Swartswood Lake— 
Porter; Waterloo—Garber; very luxuriant in Morris Pond 
near Sparta—Britton. Bergen: Hackensack River—Austin ; 
Ramapo River near Mahwah—Britton. Passaic: In the Passaic 
River—Rusby. Camden: In the Delaware—Parker. Hunter- 
don: Frequent—Best. 
. gramineus, L. 
Bergen: Waters of the Hackensack— Austin. Passaic: 
Greenwood Lake—Rudkin. Sussex: Swartswood Lake and 
Morris Pond—Britton. Morris: Lake Hopatcong—Austin. 
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