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Chlorophyceae: Chlorococcales: Scenedesmaceae

 Scenedesmus ellipsoideus
Chodat var. ellipsoideus

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 9-11 μm long, 4-6 μm wide, x 640, Senganpi suigo park, Goseki, Sakura-ku, Saitama city, Saitama Pref., Japan, February 27, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Scenedesmus

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