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Gamophyceae: Zygnematales: Desmidiaceae

 Euastrum sinuosum
Lenormand var. dideltoides Krieger

Euastrum sinuosum Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections)
Species [var. dideltoides ]: Cell body 56-90 μm long, 31-50 μm wide, isthmus 7-14 μm wide, (Illustrations of the Fresh-water Algae, 1977).

Euastrum sinuosum var. germanicum (Raciborski) Lütkemüller, cell body 73 μm long, 45 μm wide, L/W=1.6, isthmus 14 μm wide, x 640, Koigakubo marsh, Tessei-cho, Okayama Pref., Japan, November 22, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euastrum Euastrum Euastrum Euastrum

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