CATALOGUE OF PLANTS. 417 
. Trabecula (Ehrb.), Neg. 
. truncatum, Breb. 
. Baculum (Breb.), De By. 
. coronatum, Rab. 
coronulatum, Grun. 
. constrictum, Bail. 
. nodosum, Bail. 
. repandum, Wolle. 
. dilatatum (Cleve), Lund. 
All frequent in ponds throughout the State. 
vouuuuooyY 
D. sinuosum, Wolle. 
Burlington: Brown’s Mills. 
Var. breve, Wolle. 
Same locality. 
D. undulatum, Bail. 
Cape May: Dennisville, and Atlantic: Hammonton. 
D. spinosum, Wolle. : 
Cape May: Dennisville. 
D. verrucosum (Bail.), Ralfs. 
In quiet waters, northern parts of the State. 
D. tridentulum, Wolle. 
Burlington: Brown’s Mills, Pleasant Mills. 
D. minutum, Ralfs. 
In ponds. 
D. costatum, Wolle. 
is) 
. verticillatum, Bail. 
D. gracile, Bail. 
' All frequent in ponds throughout the State. 
CALOCYLINDRUS, De By. 
C. Ralfsii (Kiitz.), Kirch. (Cosmarium cylindricum, Ralfs.) 
In ponds; frequent. 
C. Cucurbita (Breb.), Kirch. 
Same habitat. 
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