332 
THE VEGETATION OF THE DISTRICTS OF 
718. Bostrychia Montague. 
* Bostrychia rivularis Harv. 
Salt-lakes, near Calcutta. 
CXLIX*-CERAMIACEE. 
719. Hormoceras Kg. 
* Hormoceras flaccidum A g. 
Salt-lakes, near Calcutta. 
CL.— CHROOCOCCACEE. 
730. Gloeocapsa Kg. 
* Gloeocapsa Rurziana Mart. 
Botanic Garden, Shibpur. 
* Gloeocapsa rupestris Kg. 
On submerged branches, river Hughli. 
731* Microcystis Kg. 
* Microcystis aeruginosa Kg. 
Tanks at Shibpur. 
CLL— OSCILLATORIACE E. 
733. Oscillatoria Vauch. 
* Oscillatoria amphibia Ag. 
On masonry steps of ghats both below and above the water line. 
* Oscillatoria antliaria Mart. 
Muddy river banks. 
* Oscillatoria Cortiana Menengh. 
In tanks. 
* Oscillatoria Froelichii Kg. 
Floating in ponds. 
* Oscillatoria Grateloupii Bory. 
Wet rice-fields. 
* Oscillatoria interrupta Mart. 
Mud of dried up ponds. 
* Oscillatoria Juliana Menengh. 
Sealdah, in drains. 
