Gamophyceae:
Zygnematales: Desmidiaceae
Cosmarium moniliforme
Turpin ex Ralfs f. moniliforme
Species [f. moniliforme]:
Cell body 21-56 μm long, 11-29 μm wide,
isthmus 4-11 μm wide, L/W=2; semicells spherical; cell wall smooth.
[f. punctata Lagerheim ]: Cell wall dotted;
24-43 μm long, 14-25 μm wide.
[f. elliptica Lagerheim ]: Cell body elongated, semicells broad ellipsoid in shape;
46-50 μm long, 28-32 μm wide.
[f. supyriforme W. et G.S. West ]: Semicells inverted ovoid, apex slightly flatted;
34-56 μm long, 21-23 μm wide.
[f. elongata W. et G.S. Wetst ]: Cell body 2 times longer than f. moniliforme, semicells ellipsoidal;
38-42 μm long, 17-22 μm wide.
[f. pandriforme Heimerl ]: Smaller than f. moniliforme;
17.5-20 μm long, 10-15 μm wide
(Illustrations of The Japanese Fresh-water Algae, 1977).
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Cosmarium moniliforme Turpin ex Ralfs f. moniliforme (or C. contractum f. jacobsenii (Roy) W. et G.S. West ?),
cell body 47 μm long, 29 μm wide, L/W=, isthmus 9 μm wide,
x 640, No.5, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Cell body 52 μm long, 31 μm wide, L/W=, isthmus 10 μm wide, x 400, x 640
Cosmarium moniliforme Turpin ex Ralfs f. moniliforme,
cell body 52 μm long, 29 μm wide, L/W=, isthmus 10 μm wide,
x 640, No.5, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
No.5, Kashibaru marsh, Karatsu city, Saga Pref., Japan, November 22, 2006 by Y. Tsukii
Please click on images for viewing enlarged.
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