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Chlorophyceae: Chaetophorales: Chaetophoraceae

Stigeoclonium subsecundum
Kützing

Stigeoclonium 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).
Species: Axis-brach differentiation slightly conspicuous; apical cells hairly; cell body cylindrical, slightly swelled at the center forming slight constriction at cell-cell junction; axial cells 20-55 μm long, 10-15 μm in diam., branching cells 12-35 μm long, 8-12 μm in diam.; a single chloroplast plate-like, with one or several pyrenoids (Illustrations of The Japanese Fresh-water Algae, 1977).


Stigeoclonium subsecundum Kützing ?, cell body μm long, μm wide, x 640, Ootagaya numa (pond), Tsurugashima town, Saitama Pref., Japan, May 2003 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
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