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Cyanophyceae: Nostocales: Oscillatoriaceae

 Oscillatoria okeni
Gomont

Oscillatoria okeni Species: Trichome straight, gradually attenulated toward ends, 2.7-4.5 μm long, 5.5-9 μm wide, L/W=1/3 (0.3); septum constricted; terminal cells conical (Illustrations of The Japanese Fresh-water Algae, 1977).

Oscillatoria okeni Gomont ?, cell body 4-7 μm long, 6.5 μm wide, L/W=0.6-1.1, x 640, rice field, Tsukamoto, Sakura-ku, Saitama city, Saitama Pref., Japan, July 25, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Oscillatoria Oscillatoria Oscillatoria

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