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Gamophyceae: Zygnematales: Desmidiaceae

 Staurastrum biexcavatum

Staurastrum biexcavatum 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:

Staurastrum biexcavatum Hirano var. biexcavatum, cell body μm long, μm wide, L/W=, x 640, No. 1, Kashiwa Village Mizube Park, Kashiwa city, Chiba Pref., Japan, February 11, 2008 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum Staurastrum

Images of collecting locality: Kashiwa Village Mizube Park, Kashiwa city, Chiba Pref., Japan, February 11, 2008 by Y. Tsukii

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