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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

 Closterium lineatum
Ehrenberg var. lineatum

Closterium lineatum Species: Cell body large, elongated, slightly curved, both side nearly straight at central region, 300-(448-672)-768 μm long, 13-(20-48) μm wide, L/W=14-16; cell wall brownish, finely striated (about 12 lines within 10 μm); 9-11 pyrenoids in each semicells (Illustrations of The Japanese Fresh-water Algae, 1977).

Closterium lineatum Ehrenberg var. lineatum, cell body 340 μm long, 24 μm wide, L/W=14.2, x 200, x 400, x 640, No.2, Nozomiko (Lake Nozomi), Myoko-kogen (Myoko highland), Iiyama city, Nagano Pref., Japan, April 26, 2007 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Closterium lineatum Closterium lineatum Closterium lineatum
x 640
Closterium lineatum Closterium lineatum Closterium lineatum Closterium lineatum
Cell body 300 μm long, 23 μm wide, L/W=13.0, x 100, x 200, x 400, x 640
Closterium lineatum Closterium lineatum Closterium lineatum
x 640
Closterium lineatum Closterium lineatum Closterium lineatum
Cell body 640 μm long, 24 μm wide, L/W=26.7, x 200, x 400, x 640
Closterium lineatum Closterium lineatum Closterium lineatum Closterium lineatum
x 640
Closterium lineatum Closterium lineatum Closterium lineatum

Images of collecting locality: No.2, Nozomiko (Lake Nozomi), Madarao highland, Iiyama city, Nagano Pref., Japan, April 26, 2007 by Y. Tsukii

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