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: lacks arm-like projections (Illustrations of The Japanese Fresh-water Algae, 1977)
Species:
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Similar species -->> S. asteroideum;
Staurastrum sp.
22 x 22 μm
Sensho-ga-hara
Shizukuishi
Iwate, 2007
Staurastrum sp.
25 x 24 μm
Shijuhachi-ike 4
Shiga highland
Nagano, 2007
