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Gamophyceae: Zygnematales: Desmidiaceae or Closteriaceae

Closterium moniliferum
(Bory) Ehrenberg var. moniliferum

Closterium moniliferum Species: Cell body moderately curved, gradually attenuated toward ends, which are broadly rounded, inner margin slightly inflated in the middle, outer margin strongly convex, 204-384 μm long, 36-60 μm wide, L/W=4.6-8; chloroplasts with 4-6 longitudinal ridges and 4-7 pyrenoids in each semicell; cell wall smooth and colorless; zygospores ellipsoid with a smooth wall (Photomicrographs of the Freshwater Algae, vol. 7, 1987). Cell body 170-450 μm long, 28-72 μm wide, L/W=6-8 (Illustrations of The Japanese Fresh-water Algae, 1977).
Similar species -->> C. ehrenbergii;


Closterium moniliferum (Bory) Ehrenberg var. ? (or C. leibleinii Kützing var. recurvatum W. & G.S. West ?), outline shape similar to C. ehrenbergii Meneghini var. podolicum Gutwinski, cell body 230 μm long, 41 μm wide, x 400, x 640, rice field, near City Hall, Fujimi city, Saitama Pref., Japan, July 11, 2004 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Closterium Closterium
Cell body about 230 μm long, 37 μm wide, x 400, x 640
Closterium Closterium Closterium

Closterium moniliferum (Bory) Ehrenberg, cell body 222 μm long, 35 μm wide, x 400, x 640, rice field, near City Hall, Fujimi city, Saitama Pref., Japan, July 11, 2004 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Closterium Closterium Closterium Closterium Closterium
Cell body 220 μm long, 35 μm wide, x 400, x 640
Closterium Closterium

* C. moniliferum (Bory) Ehrenberg var. moniliferum: 170-(235-384)-450 μm long, 28-(36-60)-72 μm wide; L/W = 6-8; cell body slightly curved; both termini broadly rounded; cell wall transparent, smooth; chloroplasts with about 4 ridges of laminae; pyrenoids arranged in a single line (Illustrations of The Japanese Fresh-water Algae, 1977).

C. moniliferum var. concavum Klebs: cell body curved more strongly than var. moniliferum; 187-(300-344)-372 μm long, 30-(39-45)-56 μm wide; cell wall transparent, smooth; chloroplasts with about 4 ridges of laminae; pyrenoids arranged in a single line (Illustrations of The Japanese Fresh-water Algae, 1977).


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