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Chlorophyceae: Chlorococcales: Scenedesmaceae

Scenedesmus ecornis
Chodat var. ecornis

Scenedesmus ecornis Genus: Colonies of 4 (or 2, 8, 16) cells attached side by side, arranged linearly or zigzag; cell body elliptical or spindle or crescent in shape; terminal cells with spiny projections in many species; cell wall usually smooth, but in some species granulated or dented or ridged (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Cells attached side by side along 3/4 of their side (arranging in 1 or 2 rows), inner spaces absent (cf. S. arcuatus); cell body ellipsoidal or ovoid without spiny or dented projections, 7-20 μm long, 4-10 μm in diam. (Illustrations of The Japanese Fresh-water Algae, 1977).


Scenedesmus ecornis Chodat var. ecornis ?, a colony of 8 dividing cells, cell body 15 μm long, 5-6 μm wide, x 640, Sagiyama Memorial Park, Saitama city, Saitama Pref., Japan, January 29, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Scenedesmus


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