CATALOGUE OF PLANTS. 421 



C. orthostichum, Lund. 



In ponds, northern parts of the State. 

 C. Hammeri, Keinsch. 



Frequent in ponds. 

 C. sublobatum, Archer. 



Same habitat. 

 C. retusum, Perty. 



In ponds. 

 C. margaritum, Wolle. 



Morris : Split Rock and other ponds. Cape May : Dennis- 

 ville. 

 C. Phaseolus, Breb. 



Common in ponds. 

 C. bierme, Nordst. 



Morris : Denmark Pond, Budd's Lake. 

 C. Schliephackianum, Grun. 



In ponds ; frequent. 

 O. ornatum, Ralfs. 



Frequent in ponds. 

 C. Sportella, Breb. 



Morris : Lake Hopatcong. 

 C. protractum (Nseg.), Archer. 



Sussex : In a pond near Branch ville. 

 C. commisiirale, Breb. 



In ponds ; not rare. 

 C. subcrenatum, Hantzsch. 



Same habitat. 

 C. Quasillus, Lund. (C. irregulare, Wolle.) 



In ponds. 

 C. Eloisianum, Wolle. 



Morris : Split Rock Pond. 

 C. Broomei, Thwaites. 



Common in ponds. 

 C. Pseudobroom^i, Wolle. 



Sussex : Wood Lake. 



