215 PRELIMINARY CATALOGUE OF PLANTS. 



Z. stelliuum, Ag. Frequent. 



Z. tenue, Kg. Frequent. 



Z. Vaucheria, Ag. Frequent. 



Zygogonium, Kg. 



Z. Agardhii, Rabh. Not rare. 

 Z. pectinatum, Kg. Not rare. 



Mougeotia, De By. 



M. laevis, Archer. Franklin. 



Mesocarpus, Hass. 



M. scalaris, Hass. Frequent. 



M. nummuloides, Hass. Frequent. 



Craterospermum, A. Br. 



C. Isetevirens, A. Br. Green Pond, etc. 



Staurospermum, Kg. 



S. Capucinum, Kg. Pleasant Mills, Atsion, etc. 



Hyalotheca, Ehrb. 



H. mucosa, Ehrb. Frequent. 

 H. dissiliens, Breb. Frequent. 



Bambusina, Kg. 



B. Brebissonii, Kg. Frequent. 



Desmidium, Ag. 



D. Swartzii, Ag. Frequent. 

 D. Aptogonium, Breb. 



Aptogonum, Ralfs. 



A. Baileyi, Ralfs. Pleasant Mills, Ocean Co., etc. 



Sphgerozosma, Corda. 



S. vertebratum, Ralfs. Frequent in ponds. 

 S. excavatum, Ralfs. Frequent in ponds. 

 S. filiforme, Ehrb. Frequent in ponds. 

 S. pulchellum, Archer. Frequent in ponds. 

 S. pulchrum. Bail. Frequent in ponds. 

 S. secedens, De By. Frequent in ponds. 

 S. serratum, Bail. Frequent in ponds. 



Mesotsenium, Naeg. 



M. micrococcum. Kg. Moist earth. 



