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

Spondylosium planum
(Wolle) W. et G. S. West

Spondylosium planum Genus: cell body flat, constricted at the center; semicell ellipsoidal or subtriangular, central area of the apex slightly elevated, cells connected with each other at their central area of apex forming filament.
Species: cell body 8.4 μm long, 8.4-12 μm wide, constriction 4.2-4.8 μm wide (Illustrations of The Japanese Fresh-water Algae, 1977).


Spondylosium planum (Wolle) W. et G. S. West, cell body 11-12.5 μm long (semicell 6 μm long), 15 μm wide, x 400, x 640, Karasugamori, Nishinasuno town, Tochigi Pref., Japan, 2001 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Spondylosium
Spondylosium Spondylosium Spondylosium Spondylosium Spondylosium


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