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Chlorophyceae: Chlorococcales: Scenedesmaceae

Scenedesmus quadrispina
Chodat
Syn.: S. quadricauda (Turpin) Brébisson var. quadrispina (Chodat) G. M. Smith

Scenedesmus quadrispina 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: Cell body broad ovoidal, 8.5-16 μm long, 4-7 μm wide; spiny projections of outer cells short (3-7 μm long) (Illustrations of The Japanese Fresh-water Algae, 1977).


Scenedesmus quadrispina Chodat, inner cell body 15 μm long, 4 μm wide, L/W=3.8, outer cell body 14 μm long, 5 μm wide, L/W=2.8, spines 8 μm long, x 640, rice field, near Ichinoseki Railroad Station, Ichinoseki city, Iwate Pref., Japan, July 24, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Scenedesmus Scenedesmus


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