Genus: Subaerial algae; cell body without gelatinous coat; a single chloroplast cup-shaped with a pyrenoid
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Chlorococcum sp. ?,
cell body μm long, μm wide,
x 640, Furu-tone river, Kasukabe city, Saitama Pref., Japan, February 15, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640