CATALOGUE OF PLANTS. 603 



O. scopulorum (Web. & Mohr), Ag. 



Marine. Hudson: Hoboken Pike. Atlantic: On wharves, 

 Atlantic City Morse. Cape May : Beesley's Point Pike. 



C. pulvinata (Mert.), Ag. 



Marine. Atlantic : On wharves, Atlantic City Martindale. 



O. Dill wy nil, Hass. 



In fresh- water swamps; frequent.* 



C. gypsophila, Kiitz. 



Fresh water. Morris : Rocky shores of Lake Hopatcong. 



C. radiosa (Kiitz.), Kirch. 



Fresh water. Morris : Morris Pond. 



C. Meneghiniana, Kirch. 



Fresh water. On submerged wood, etc. ; frequent. 



C. Brebissonii, Ktttz. 



Fresh water. On stones in ponds ; frequent. 



O. lacucola, Wolle. 



Fresh water. Morris : ,Split Rock Pond. 



MASTIGONBMA, Fisher. 



M. serugineum (Kutz.), Kirch. 



Fresh water. In small ponds ; common. f 



ISACTIS, Thur. 

 I. plana, Thur. 



Marine. Atlantic : On stones and old oyster shells, Atlantic 

 City Morse. 



I. csespitosa (Kiitz.), Wolle. 



Fresh water. On submerged stones in shallow water ; frequent. 



I. fluviatilis (Rab.), Kirch. 



Fresh water. Morris : Rocky margins of Green Pond. 



* C. Orsiniana of the Preliminary Catalogue is omitted as uncertain. 



fThe other species given in the Preliminary Catalogue are omitted as uncertain. 



