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Gamophyceae: Zygnematales: Desmidiaceae

 Staurastrum subavicula
W. et G.S. West

Staurastrum subavicula 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 subavicula W. et G.S. West ??, cell body 25 μm long, 28 μm wide (excluding sphort spines), L/W=, isthmus 9 μm wide, x 640, No.5, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum gurgeliense Staurastrum gurgeliense Staurastrum gurgeliense
Staurastrum gurgeliense Staurastrum gurgeliense Staurastrum gurgeliense Staurastrum gurgeliense

Images of collecting locality: No.5, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 22, 2006 by Y. Tsukii

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