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Chlorophyceae: Chaetophorales: Chaetophoraceae

 Stigeoclonium sp.

Stigeoclonium Genus: (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Genus: Filamentous algae, axis-branch differentiation incomplete; terminal cells tapered to form spiny projections; branches do not form in tuft (Illustrations of The Japanese Fresh-water Algae, 1977).

Stigeoclonium (Chaetophorales) or Gloeotilopsis (Ulotrichales) ?, cell body 1.4-4.0 μm long, 9 μm wide, x 640, water treatment center, Ishii, Sakado city, Saitama Pref., Japan, December 19, 2004 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Stigeoclonium Stigeoclonium Stigeoclonium Stigeoclonium

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