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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

Closterium lunula
(Müller) Nitzsch var. lunula

Closterium lunula Species [var. lunula] : Cell body large, 250-(430-552)-1000 μm long, 47-(73-89)-120 μm wide, L/W=5-8; inner-side nearly straight, outer-side convex; tapered at both termini (broad circle, slightly inversed); cell wall smooth, transparent, without bands; chloroplasts with many pyrenoids.
[var. biconvexum Schmidle]: Inner-side also convex; 455-603 μm long, 85-126 μm wide, (Illustrations of The Japanese Fresh-water Algae, 1977).


Closterium lunula (Müller) Nitzsch var. lunula, cell body μm long, μm wide, L/W=, x 200, x 400, x 640, Motoyu marsh-1, Nikko city (formerly Fujiwara town), Tochigi Pref., Japan, September 24, 2008 collected by Eizaburo Tsukii, photo by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Closterium lunula Closterium lunula Closterium lunula Closterium lunula Closterium lunula Closterium lunula Closterium lunula
Cell body μm long, μm wide, L/W=, x 400, x 640
Closterium lunula Closterium lunula Closterium lunula Closterium lunula


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