Genus:
Filamentous algae without branching; a single plate-like chloroplast in each cell
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
xxxx sp.,
cell body 25 μm long, 3 μm wide,
x 640, Naga-ike (pond), Shinbaru, Sue-machi (Sue town), Fukuoka Pref., Japan, October 2001 by Y. Tsukii
31 μm
63 μm
94 μm; x 640