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Cyanophyceae: Nostocales: Nostocaceae

Anabaenopsis flos-aquae
(Lyngbye) Brébisson

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 at base never become a large akinete (Illustrations of The Japanese Fresh-water Algae, 1977).


Anabaena flos-aquae (Lyngbye) Brébisson ??, cell body μm long, 2.5 μm wide, x 640, a pond at Takezono-higashi park, Tsukuba city, Ibaraki Pref., Japan, October 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Anabaena Anabaena


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