CATALOGUE OF PLANTS. 451 



Var. Smithii, Ralfs. 



Fresh water. Salem : Occasional in pond at Sharptown. 

 Mon mouth : Lake Como. 



Var. subarcuata (Nseg.), Grun. 



Fresh water. Same localities as the last. 

 E. major (W. Sm.), Rab. 



Fresh water. Camden : Common in meadow ditches near 

 Camden. Sussex : Lake Hopatcong and spring in Culver's Gap. 



B. monodon, Ehrb. 



Fresh water. Common in ponds and meadow ditches through- 

 out the State. Fossil at Drakes ville. 



B. pectinalis (Kiitz.), Rab. 



Fresh water. Sussex : Spring in Culver's Gap. 

 E. pectinalis, forma curta, V. H. 



Fresh water. Atlantic : Occasional in Hammonton Pond. 

 B. 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. 



E/prserupta, Ehrb. 



Fresh water. Frequent in ponds and brooks. Gloucester : 

 Mullica Hill. Camden : Kirkwood. Atlantic : Hammonton 

 and Absecon. 



B. 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. 



