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Gamophyceae: Zygnematales: Desmidiaceae

 Staurastrum sebaldi
Reinsch var. sebaldi

Staurastrum sebaldi 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 67-75.6 μm long (excluding spines), 84 μm (including spines), 67-92 μm wide, isthmus 16.8-19.5 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977)

Staurastrum sebaldi Reinsch var. sebaldi, cell body μm long, μm wide, L/W=, isthmus μm wide, x 640, No.1, Ko-numa (pond/marsh), Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, October 12, 2008 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Staurastrum sebaldi Staurastrum sebaldi Staurastrum sebaldi Staurastrum sebaldi Staurastrum sebaldi Staurastrum sebaldi Staurastrum sebaldi Staurastrum sebaldi

Images of collecting locality: No.1, Ko-numa (pond/marsh), Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, October 12, 2008 by Y. Tsukii

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