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Cyanophyceae: Nostocales: Oscillatoriaceae

 Spirulina sp.
Turpin 1829 ex Gomont 1892

Family: Trichome (filamentous structure) lacks heterocysts; with equal diameter throughout whole length; no hair-like structure; no branching.
Genus: (Illustrations of The Japanese Fresh-water Algae, 1977).

Spirulina sp., cell body μm long, μm wide, x 640, near Nahoso primary school, Kozutusmi, Kawagoe city, Saitama Pref., Japan, July 18, 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
Spirulina Spirulina
x 400, x 640
Spirulina Spirulina
Spirulina Spirulina Spirulina Spirulina
x 400, x 640
Spirulina Spirulina

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