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Gamophyceae: Zygnematales: Desmidiaceae

 Staurastrum incisum
Wolle

Staurastrum 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: Cell body 29 μm long, 37 μm wide, constriction 9 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977)

Staurastrum incisum Wolle or Staurastrum asteroideum W. et G.S. West ?, cell body 26 μm long, 36 μm wide, isthmus 9 μm wide, L/W=0.7, x 640, Hannoki numa (pond), Aizu Recreation Park, Aizuwakamatsu city, Fukushima Pref., Japan, May 4, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum asteroideum Staurastrum asteroideum

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