Genus: Subaerial algae, irregularly branched; cell division by septum formation; asexual reproduction by zoospore;
cell body contains a large vacuole
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Leptosira sp. ?,
cell body 6-11 μm long, 7 μm wide,
x 640, Showa Memorial Park, Tachikawa-ku, Tokyo, Japan, November 2001 by Y. Tsukii
50 μm
100 μm
150 μm; x 400