Genus: Cell body ellipsoidal or short cylindrical; chloroplasts plate-like.
Species:
Cell body cylindrical, 22-38 μm long, 11-20 μm wide, both ends rounded,
a single plate-like chloroplast present, margins dented
(Illustrations of The Japanese Fresh-water Algae, 1977) .
Mesotaenium macrococcum (Kützing) Roy et Bisset,
cell body 25 μm long, 12 μm wide, L/W=2.1,
x 640, Kamino-tanbo (bog/marsh), Tsugaike highland (near Tsugaike Natural Park), Otari village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
Kamino-tanbo (bog/marsh), Tsugaike highland (near Tsugaike Natural Park), Otari village, Nagano Pref., Japan, August 11, 2006 by Y. Tsukii