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Gamophyceae: Desmidales: Desmidiaceae
(Charophyceae: Zygnematales: Desmidiaceae)

Desmidium coarctatum
Nordstedt

Genus: Cell body short, with a deep constriction at the center, apical view fusiform or radially symmetrical; cell apexes without spiny projections; intermediate zone or folded structure appeared during cell division; zygospores remain within their mother cells (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
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Desmidium coarctatum
D. coarctatum
25 x 31 μm
Oze-ga-hara
Katashina
Gunma, 2006
Desmidium coarctatum
D. coarctatum
19-21 x 21-26 μm
Kashibaru m.1
Karatsu
Saga, 2006
Desmidium coarctatum
D. coarctatum
18-20 x 20-28 μm
Kashibaru m.5
Karatsu
Saga, 2006
Desmidium coarctatum
D. coarctatum
μm
Kareki-numa
Nikko
Tochigi, 2008.8
Desmidium coarctatum
D. coarctatum
μm
Kashibaru m.4
Karatsu
Saga, 2008
Desmidium coarctatum
D. coarctatum
μm
Ko-numa
Minakami
Gunma, 2008

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Desmidium coarctatum
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