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Chlorophyceae: Chlorococcales: Scenedesmaceae

Scenedesmus protuberans
Fritsch

Scenedesmus protuberans 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:


Scenedesmus protuberans, cell body 18 μm long, 3 μm wide, spines 16 μm long, L/W=6.0, S/L=0.9, x 400, x 640,Tega-numa, Abiko city, Chiba Pref., Japan, October 2000 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 quadricauda Scenedesmus quadricauda


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