Cc. 
Cc 
CATALOGUE OF PLANTS. 419 
. Sexangulare, Lund. 
Morris: Split Rock Pond. 
. depressum (Neg.), Lund. 
Monmouth: Pond at Spring Lake. 
. obsoletum, Reinsch. 
Monmouth: In a sluggish stream, Ocean Grove. 
. Meneghinii, Breb. 
In ponds; frequent. 
. polygonum, Neg. 
In ponds ; occasional. 
. lunatum, Wolle. 
Burlington: Brown’s Mills. 
. Smolandicum, fund. 
In ponds ; frequent. 
. undulatum, Corda, var. crenulatum, Wolle. 
Same habitat. 
. crenatum, Ralfs, 
In ponds ; occasional. 
. venustum, Rab. 
Same habitat. 
Reinschii, Archer. 
Morris: Lake Hopatcong. 
pyramidatum, Breb. 
In ponds; common. 
Var. stenonotum, Nordst. 
C. 
Union: Pond near Plainfield—A. D. Balen. 
Ralfsii, Breb. 
In ponds; occasional. 
C. pachydermum, Lund. 
Morris: Budd’s Lake. 
C. galeritum, Nordst. 
In springs and ponds. 
C. polymazum, Nordst. 
Morris: Denmark Pond. 
