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Chlorophyceae: Chlorococcales: Scenedesmaceae

Scenedesmus maximus
(W. & G.S. West) Chodat var. maximus
Syn.: S. quadricauda (Turpin) Brébisson var. maximus W. & G.S. West
= Desmodesmus maximus (W. & G.S. West) E. Hegewald
Indentified by Eberhard Hegewald (Research Centre Jülich, ICG III Phytosphere, Germany)

Scenedesmus maximus 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 oblong with both ends rounded, 15-35 μm long, 4.5-5.8 (-9) μm wide; cells arranged in a linear series contacting nearly with their entire sides; outer cells with a long curved spine at each ends, sometimes inner cells with a long spine at one pole; cell wall smooth or covered with linear microgranules (Photomicrographs of the Freshwater Algae, vol. 17, 1996).

Scenedesmus maximus (W. & G.S. West) Chodat, stock Tsh-1, cell body 20 μm long, 8 μm wide, spines 15 μm long, L/W=2.5, S/L=0.8, x 640, Showa Memorial Park, Tachikawa-ku, Tokyo, Japan, November 2001 identified by E. Hegewald, photo by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Scenedesmus quadricauda Scenedesmus quadricauda Scenedesmus quadricauda Scenedesmus quadricauda Scenedesmus quadricauda

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