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Chlorophyceae: Chlorococcales: Scenedesmaceae

Scenedesmus javanensis
Chodat

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 fusiform, straight or slightly curved, both ends drawn out, 28-50 μm long, 4-8 μm wide; cells arranged alternately contacting with their apices and median portion of adjacent cells in a linear series; cell wall smooth, without teeth or spines (Photomicrographs of the Freshwater Algae, vol. 15, 1995).
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Scenedesmus
S. javanensis ?
cell 38 x 5 μm
Mizumoto park
Tokyo, 2001
Scenedesmus javanensis
S. javanensis
cell μm
Omine-numa
Tsukiyono
Gunma, 2003
Scenedesmus javanensis
S. javanensis
cell μm
Takezono-higashi
Tsukuba
Ibaraki, 2003
Scenedesmus javanensis
S. javanensis
cell 28 x 7.5 μm
Oh-asoh
Kumagaya
Saitama, 2004
Scenedesmus javanensis
S. javanensis
cell 38 x 5 μm
Shirahata-Numa
Urawa
Saitama, 2005
Scenedesmus acuminatus
S. javanensis
cell 30 x 7 μm
Jionji-shinsui p.
Iwatsuki-ku
Saitama, 2006

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Scenedesmus javanensis
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