 
 
|  Family: Irregularly branched filament; many chloroplasts along cell wall. Genus: Same as Family (Illustrations of The Japanese Fresh-water Algae, 1977). Species: | 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
 
 
 
Images of collecting locality: 
Furuike marsh, Togakushi highland, Shinano town, Nagano Pref., Japan, May 21, 2006 by Y. Tsukii
 
 
