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

Spondylosium sp.

Spondylosium 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.

Spondylosium sp. similar to S. pulchellum W. Archer (or Cosmarium ?), cell body 14 μm long, 11 μm wide, x 640, Kayoicho-ike (pond), Kasuya town, Fukuoka Pref., Japan, October 2001 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cosmarium Cosmarium Cosmarium

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