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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

 Closterium navicula
(Brébisson) Lütkemüller

Closterium navicula Species: Cell body not curved, spindle or boat in shape; 24-(35-84)-93 μm long, 8-(11-20)-22 μm wide; L/W = 3-4; a single chloroplast and 1 or 2 pyrenoids in each semicell (Illustrations of The Japanese Fresh-water Algae, 1977).

Closterium navicula (Brébisson) Lütkemüller, cell body 47 μm long, 14 μm wide, L/W=3.4, x 640, a small wetland near Numa-no-hara marsh (Genseikaen), Madarao highland (Niigata & Nagano Pref.), Myoko village, Niigata Pref., Japan, May 15, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Closterium
Cell body 55 μm long, 14 μm wide, L/W=3.9, x 640
Closterium Closterium
Cell body 56 μm long, 14 μm wide, L/W=4.0, x 640
Closterium
Cell body 56 μm long, 14 μm wide, L/W=4.0, x 640
Closterium navicula Closterium navicula

Closterium navicula (Brébisson) Lütkemüller, cell body 47 μm long, 14 μm wide, L/W=3.4, x 640, a small wetland near Numa-no-hara marsh (Genseikaen), Madarao highland (Niigata & Nagano Pref.), Myoko village, Niigata Pref., Japan, May 15, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Closterium navicula Closterium navicula
Cell body 46 μm long, 13 μm wide, L/W=3.5, x 400, x 640
Closterium navicula
Cell body 55 μm long, 13 μm wide, L/W=4.2, x 400, x 640
Closterium navicula
Cell body 55 μm long, 14 μm wide, L/W=3.9, x 400, x 640
Closterium navicula Closterium navicula

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