Peculiar Habitat of a Chlorophytc. By A. D. Hardy. 281 



Pediastrum tetras (Ehrenb.) "Ralfs. 

 P. Ehrenbergii Corda. 

 Scenedesmus qttadricauda (Turp.) Breb. 

 Anlcistrodesinus falcatus (Corda) Ealfs. 

 Selenastrum acuijiinatum Laoenh. 

 Bplimrocystis sclirceteri Chodat. 

 Synedra pidchdla Kiitz. 

 Stauroneis sp. 

 Navicula sp. 



June 19th, 1907 tr 



