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Chlorophyceae: Chlorococcales: Oocystaceae

Monoraphidium contortum

Monoraphidium contortum Genus: Cell body elongated spindle in shape, straight or curved, sharply pointed at both ends; (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Cell body elongate fusiform, tapering toward the sharply pointed ends, sigmoid, undulate to helicoidally twisted (1 - 1.5 turns), 16-18 μm long between the ends, 1-2 μm wide; two chloroplasts, parietal, entending into the ends, without pyrenoids; cell division produces 2, 4 or 8 "autospores" (Photomicrographs of the Freshwater Algae, 1996).


Monoraphidium contortum ?, cell body μm long, μm wide, x 640, Doman-green Park, Nishi-Urawa, Saitama Pref., Japan, February 2003 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
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