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Cyanophyceae: Nostocales: Rivulariaceae

 Calothrix braunii
[C. Agardh 1824] Bornet et Flahault 1886 (John et al. ed. 2002)

Family: Trichome (filamentous structure) tapered from base to tail
Genus: Heterocysts present; one trichome within a sheath; coenobium absent (Illustrations of The Japanese Fresh-water Algae, 1977).

Calothrix braunii Bornet et Flahault ?, cell body μm long, up to 13 μm wide, x 200, x 400, x 640, Murakuni ike (pond), Iwatsuki-bunka Park, Iwatsuki-ku (formerly Iwatsuki city), Saitama city, Saitama Pref., Japan, April 9, 2006 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
Calothrix Calothrix Calothrix Calothrix

Images of collecting locality: Murakuni ike (pond), Iwatsuki-bunka Park, Iwatsuki-ku (formerly Iwatsuki city), Saitama city, Saitama Pref., Japan, April 9, 2006 by Y. Tsukii

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