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Gamophyceae: Zygnematales: Desmidiaceae

Cosmarium connatum
Brébisson ex Ralfs

Cosmarium Species: Cell body slightly large, (62-87)-100 μm long, (45-70)-74 μm wide, isthmus 37-53 μm wide, L/W=1.3; semicells elliptial, apex broadly rounded, slightly flattened, apical view circular or broad ellipitical; cell wall covered with small pores interspersed with many dots, (Illustrations of The Japanese Fresh-water Algae, 1977).

Cosmarium connatum Brébisson ex Ralfs, cell body 67 μm long, 49 μm wide, isthmus 40 μm wide, x 640, rice field, Higashi-sano (near Minami-kamishiro railway station), Hakuba village, Nagano Pref., Japan, October 3, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cosmarium Cosmarium Cosmarium Cosmarium Cosmarium

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