Chlorophyceae:
Chlorococcales: Scenedesmaceae
Scenedesmus quadricauda
(Turpin) Brébisson sensu Chodat, 1913
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).
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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
50 μm
100 μm
150 μm; x 400
Scenedesmus quadricauda, cell division, x 640, by Y. Tsukii
Scenedesmus quadricauda, an autocoly released through a slit in the parental cell wall, x 640, by Y. Tsukii
Scenedesmus quadricauda, protoplasts rearranged to form an autocoloy,
x 640, Japan, 1998, by Y. Tsukii
Scenedesmus quadricauda, protoplasts rearranged to form an autocoloy,
x 400, x 640, October 2000, by Y. Tsukii
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