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Gamophyceae: Zygnematales: Desmidiaceae

 Cosmarium capax
Joshua var. capax
= Actinotaenium capax (Joshua) Teiling

Cosmarium capax Genus: Unicellular; variable in shape; a constriction at the center of the cell body; mostly longer than wide; flattened; each semicell hemispherical, spherical, ellipsoidal, rectangular, pyramidal or kidney-shaped; no apical indentation (Illustrations of The Japanese Fresh-water Algae, 1977).
Species [var. minus]: Cell body (66-112)-120 μm long, (50-60)-64 μm wide, isthmus (48-56)-59 μm wide, (Illustrations of The Japanese Fresh-water Algae, 1977).

Cosmarium capax Joshua var. capax or similar species ?, outline shape more similar to C. connatum Brébisson rather than to C. capax (C. connatum Brébisson large variety ??), cell body 126 μm long, 79 μm wide, L/W=, isthmus 70 μm wide, x 640, No.2, Imou bog, Toyohashi city, Aichi Pref., Japan, September 24, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cosmarium Cosmarium Cosmarium Cosmarium

Images of collecting locality: No.2, Imou bog, Toyohashi city, Aichi Pref., Japan, September 24, 2006 by Y. Tsukii

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