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. biornatus ]: S= length of Spines; L=Body length |
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Scenedesmus ellipsoideus var. biornatus Kiss, a colony of 8 cells,
cell body μm long, μm wide, spines μm long,
L/W=, S/L=0.6-0.8,
x 400, x 640, Saitama Pref., May-June 1999 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
Scenedesmus ellipsoideus var. biornatus Kiss, a colony of 4 cells,
cell body μm long, μm wide, spines μm long,
L/W=, S/L=0.6-0.8,
x 400, x 640, May-June 1999 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
