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Chlorophyceae: Chlorococcales: Scenedesmaceae

 Scenedesmus ellipsoideus
Chodat var. biornatus

Scenedesmus ellipsoideus 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 [ var. ellipsoideus ]: (Illustrations of The Japanese Fresh-water Algae, 1977).

Scenedesmus ellipsoideus, cell body 12 μm long, 6 μm wide, spines 8 μm long, L/W=2.0, S/L=0.67, x 640, Maruyama Park, Ageo city, Saitama Pref., Japan, March 2002 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
Scenedesmus ellipsoideus Scenedesmus ellipsoideus Scenedesmus ellipsoideus Scenedesmus ellipsoideus

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