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Cyanophyceae: Nostocales: Nostocaceae

Anabaena sp.
Bory de St. Vincent 1822 sensu Rippka et al. 1979 (Bergey's Manual 2nd. 2001)

Family: Trichome (filamentous structure) with heterocysts; with equal diameter throughout hole length; no branching; heterocysts intervening or at base.
Genus: Mucous sheath, nearly invisible; heterocysts intervening; filments solitary or agglutinate within a gelatinous matrix (Illustrations of The Japanese Fresh-water Algae, 1977).


Anabaena sp. ?, body μm long, 5.5 μm wide, x 640, Kozuki Pond, Kinashi, Takamatsu city, Kagawa Pref., Japan, November 2002 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
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