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Gamophyceae: Zygnematales: Desmidiaceae

 Staurastrum subtilissimum
Hirano

Staurastrum subtilissimum Genus: Cell body short, radiate in shape; apical view of the cell, triangular, polygonal, ellipsoidal or spindle-shaped; zygospores formed outside of mother cells (Illustrations of The Japanese Fresh-water Algae, 1977)
Subgenus: With arm-like projections (Illustrations of The Japanese Fresh-water Algae, 1977)
Species:
Similar species -- >> S. xxxx;

Staurastrum subtilissimum Hirano ? (Glabriformes), cell body μm long, 15 μm wide, with 4 arm-like projections, x 640, Omine-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, September 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum Staurastrum

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