CATALOGUE OF PLANTS. 449 



Morris county. Although this is usually considered to be 

 strictly a fresh-water species, yet it is very plentiful in a 

 decidedly brackish pool near Manasquan River. 



C. placentula, Ehrb. 



Fresh water. Generally distributed throughout the State. 



C. scutellum, Ehrb. 



Salt and brackish water. Abundant all along the coast. 

 Parasitic upon algae and zoophytes. 



Tribe 2.-PSEUDO-RAPHIDIEJE. 



FRAGILAEIEJE. 



BPITHBMIA, Breb. 

 B. gibba (Ehrb.), Kiitz. 



Fresh water. Common in ponds and ditches. Gloucester : 

 Mullica Hill. Salem: Woodstown. Burlington: Marlton. 

 Sussex : White Hall and Andover. Morris : Lake Hopatcong 

 and Drakesville fossil deposit. 



B. Musculus, Kiitz. 



Brackish water. Common in brackish ditches and pools all 

 along the coast. 



B. succincta, Breb. 



Fresh water. Burlington: Occasional in meadow ditches 

 near Marlton. 



B. turgida (Ehrb.), Kiitz. 



Fresh water. Very common in meadow ditches and pools. 

 Fossil at Drakesville, Morris county. 



B. ventricosa, Kiitz. (Variety of E. gibba.) 



Fresh water. Frequent in meadow ditches and pools. Salem : 

 Woodstown. Burlington : Marlton. Sussex : Andover and 

 Hamburg. Morris : Lake Hopatcong. 



2D 



OF THE 



UNIVERSITY 



