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Cyanophyceae: Nostocales: Nostocaceae

 Nodularia sp.
[Mertens in Jürgens 1822] Bornet et Flahault 1886

Nodularia 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).

Nodularia sp. (Nostocaceae, Nostocales), cell body 4-12 μm long, 22 μm wide, L/W=, heterocyst 18 μm long, 22 μm wide, L/W=, x 400, x 640, Toneri Park, Adachi-ku, Tokyo, Japan, November 27, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Nodularia Nodularia Nodularia Nodularia Nodularia Nodularia Nodularia Nodularia Nodularia

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