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Gamophyceae: Zygnematales: Desmidiaceae

 Euastrum sinuosum
Lenormand var. sinuosum

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 Lenormand var. sinuosum ?, cell body 66 μm, 44 μm wide, constriction 16 μm wide, L/W=1.5, isthmus μm wide, x 400, x 640, Vermont-Maine U.S.A., August 7-13, 1999, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Euastrum Euastrum

Euastrum sinuosum Lenormand var. sinuosum: 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. germanicum (Raciborski) Lütkemüller: Cell body 59-78 μm long, 36.5-47.6 μm wide, isthmus 7-12.5 μm wide, L/W=1.5-1.75 (Illustrations of the Fresh-water Algae, 1977).

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