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Cyanophyceae: Nostocales: Oscillatoriaceae

 Oscillatoria limnetica
Lemmermann

Oscillatoria limnetica Genus: Trichome without mucous sheath; straight, long, consisting of numerous cells (Illustrations of The Japanese Fresh-water Algae, 1977).
Species: Trichome straight, with a constriction at cell-cell junction, 1.5 μm in diam.; cell body elongated, 4-12 μm long, L/W=2.5-8 (Illustrations of The Japanese Fresh-water Algae, 1977).

Oscillatoria limnetica Lemmermann ?, trichome 1.5 μm in diam., cell body μm long, μm wide, x 640, Central Park, Tsukuba city, Ibaraki Pref., Japan, July 2002 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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