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Chlorophyceae: Chlorococcales: Scenedesmaceae

Scenedesmus quadricauda
(Turpin) Brébisson sensu Chodat, 1913

Scenedesmus quadricauda 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. quadricauda ]: Colonies of 2, 4 or 8 cells arranging linearly; cell body elongated ellipsoidal, 11-18 μm long, 3.5-7 μm wide; terminal cells with long spiny projections (b>10-17 μm long); cell wall smooth (Illustrations of The Japanese Fresh-water Algae, 1977).


Scenedesmus quadricauda, cell division, mature cells 17 μm long, 6 μm wide, L/W= 2.8, S/L = , x 400, Japan, 199? by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Scenedesmus Scenedesmus Scenedesmus Scenedesmus

Scenedesmus quadricauda, cell division, x 640, by Y. Tsukii
Scenedesmus Scenedesmus Scenedesmus

Scenedesmus quadricauda, an autocoly released through a slit in the parental cell wall, x 640, by Y. Tsukii
Scenedesmus Scenedesmus Scenedesmus

Scenedesmus quadricauda, protoplasts rearranged to form an autocoloy, x 640, Japan, 1998, by Y. Tsukii
Scenedesmus

Scenedesmus quadricauda, protoplasts rearranged to form an autocoloy, x 400, x 640, October 2000, by Y. Tsukii
Scenedesmus Scenedesmus


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