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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).

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Closterium lunula (Müller) Nitzsch var. lunula, cell body 680 μm long, 85 μm wide, L/W =8.0, x 100, x 200, Vermont-Maine, U.S.A., August 7-13, 1999, by Y. Tsukii
Closterium Closterium Closterium Closterium Closterium
x 400
scale 50 μm scale 100 μm scale 150 μm; x 400
Closterium Closterium Closterium Closterium Closterium


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