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Gamophyceae: Zygnematales: Desmidiaceae

 Euastrum sinuosum
var. scrobiculatum Nordstedt

Euastrum sinuosum Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections)
Species: Cell body 60-74 μm long, 34-46 μm wide, isthmus 8-15 μm wide, (Illustrations of the Fresh-water Algae, 1977).

Euastrum sinuosum var. scrobiculatum Nordstedt ?, cell body 86 μm long, 50 μm wide, L/W=1.7, isthmus 15 μm wide, x 640, Yacho-no-mori marsh (near road sign No. 2), Sukawa highland, Kurikoma mountain, Higashi-naruse village, Akita Pref., Japan, July 24, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euastrum sinuosum Euastrum sinuosum Euastrum sinuosum

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