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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

 Closterium pronum

Closterium pronum Genus: Cell body crescent in shape (long, curved, tapered at both ends); cross section rounded; cell wall smooth or with longitudinal lines, bands on the cell wall in some species; chloroplast laminae ridged and radially arranged, which makes cross section star-shaped; pyrenoids aligned or scattered
Species: Cell body elongated spindle-shaped, μm long, μm wide, L/W= ;

Closterium pronum , cell body 416 μm long, 9 μm wide, L/W=46.2, x 200, x 400, x 640, No.3, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 2006 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Closterium pronum Closterium pronum Closterium pronum Closterium pronum

Images of collecting locality: No.3, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 22, 2006 by Y. Tsukii

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