Species [var. moniliferum]: 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; |
50 μm
100 μm
150 μm; x 400
31 μm
63 μm
94 μm; x 640
Closterium moniliferum,
cell body 260 μm long, 38 μm wide, L/W =6.8,
x 400, x 640, Niigata Pref., Japan, July 2001 collected by N. Kinoshita, by Y. Tsukii
50 μm
100 μm
150 μm; x 400
31 μm
63 μm
94 μm; x 640
* 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).