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

Spondylosium javanicum
(Gutwinski) Gröblad var. javanicum

Spondylosium javanicum 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 25-38 μm long, 20-26 μm wide; constriction 7-10 μm; indentation widely opened and rounded the the extremity; semicells subtriangular with broadly rounded margins; vertical view of semicells triangular with broadly rounded angles and sides strongly concave; filaments not twisted (Phtomicrographs of the Fresh-water Algae, vol.3, 1985)

Spondylosium javanicum (Gutwinski) Grünblad var. javanicum, cell body 30 μm long, 25 μm wide, L/W=, x 640, a water reservoir (pond) near Yamaguchi university, Yamaguchi city, Yamaguchi Pref., November 21, 2004, by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Spondylosium javanicum Spondylosium javanicum

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