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Gamophyceae: Zygnematales: Desmidiaceae

 Staurastrum dilatatum
Ehrenberg ex Ralfs var. dilatatum

Staurastrum dilatatum 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:

Staurastrum dilatatum Ehrenberg ?, cell body 34 μm long, 32 μm wide, isthmus μm wide, x 640, History and folk museum of Oku-aizu area, Tajima town, Fukushima Pref., Japan, August 22, 2004, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum dilatatum Staurastrum dilatatum Staurastrum dilatatum Staurastrum dilatatum

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