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Cyanophyceae: Nostocales: Oscillatoriaceae

 Oscillatoria yufuensis
Yoneda

Oscillatoria Genus: Trichome without mucous sheath; straight, long, consisting of numerous cells (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Trichome straight or wavy, not constricted at cell-cell junctions, 2-3.5 μm long, 8-9 μm wide, L/W=1/4-1/3 (0.25-0.33); granules present along septum; terminal cells rounded as calyptra (Illustrations of The Japanese Fresh-water Algae, 1977).

Oscillatoria yufuensis Yoneda ?, cell body 2-3 μm long, 8 μm wide, L/W=0.3-0.4, x 640, drainage ditch near Tanohara Natural Park, Ontake highland, Otaki town, Nagano Pref., Japan, June 26, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Oscillatoria Oscillatoria

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