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Cyanophyceae: Nostocales: Oscillatoriaceae

 Oscillatoria formosa
Bory

Genus: A single trichome within a rigid sheath; sheath clear or yellowish; filaments planktonic or agglutinated (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:

Oscillatoria formosa Bory, cell body μm long, 8.5-9.5 μm wide, L/W=, x 640, drainage ditch, Naruto town, Chiba Pref., Japan, September 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
Oscillatoria formosa Oscillatoria formosa

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