CATALOGUE OF PLANTS. 451 
Var. Smithii, Ralfs. 
Fresh water. Salem: Occasional in pond at Sharptown. 
Monmouth: Lake Como. 
Yar. subarcuata (Neg.), Grun. 
Fresh water. Same localities as the last. 
HE. major (W. Sm.), Rab. 
Fresh water. Camden: Common in meadow ditches near 
Camden. Sussex: Lake Hopatcong and spring in Culver’s Gap. 
EH. monodon, Ehrb. 
Fresh water. Common in ponds and meadow ditches through- 
out the State. Fossil at Drakesville. , 
E. pectinalis (Kiitz.), Rab. 
Fresh water. Sussex: Spring in Culver’s Gap. 
EB. pectinalis, forma curta, V. H. : 
Fresh water. Atlantic: Occasional in Hammonton Pond. 
E. pectinalis, forma elongata, V. H. 
Fresh water. Atlantic: Occasional in ponds at Hammonton, 
and Salem: Sharptown. 
Var. undulata, Ralfs. (Himantidium undulatum, W. Sm.) 
Fresh water. Very common in ponds and brooks; especially 
abundant in cedar-swamp streams. Camden: Ancora. Atlan- 
tic: Mays Landing, Hammonton and Absecon. Salem: Sharp- 
town. Morris: Budd’s Lake and Lake Hopatcong. 
EH. prerupta, Ehrb. 
Fresh water. Frequent in ponds and brooks. Gloucester : 
Mullica Hill. Camden: Kirkwood. Atlantic: Hammonton 
and Absecon. 
BH. robusta, Ralfs. 
Fresh water. Common in cranberry bogs and ponds. Cam- 
den: Ancora and Kirkwood. Ocean: Toms River. 
Var. tetraodon (Ehrb.), Ralfs. 
Fresh water. Sussex: Occasional in a spring in Culver’s Gap. 
E. triodon, Ehrb. 
Fresh water. Frequent in brooks and ponds. Ocean: Toms 
River. Atlantic: Hammonton. Sussex: Andover and Cul- 
ver’s Gap. Cape May: Cape May Point. 
