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Gamophyceae: Zygnematales: Desmidiaceae

 Euastrum cuneatum
Jenner

Euastrum Subgenus: Entomum (Apical area deeply indented or notched)
Section: Incisa (Cell surface smooth; apical area without spiny projections)
Species: Cell body medium in size, 90-101 μm long, 48-50 μm wide, L/W=2, isthmus 14-17 μm wide; semicells pyramid-shaped with narrowly flattened apex; lateral margins nearly straight or somewhat wavy; cell wall dotted or with many small pores, bulging inconspicuous (Illustrations of The Japanese Fresh-water Algae, 1977).

Euastrum cuneatum Jenner, cell body 96 μm long, 50 μm wide, L/W=1.9, isthmus 16 μm wide, x 640, Mida-ga-hara (bog), Gassan (mountain), Haguro & Tachikawa town, Yamagata Pref., Japan, July 10, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Euastrum cuneatum
Cell body 93 μm long, 55 μm wide, L/W=1.7, isthmus 16 μm wide, x 640
Euastrum cuneatum

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