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Gamophyceae: Desmidales: Desmidaceae or Peniaceae
(Charophyceae: Zygnematales: Desmidaceae)

Penium margaritaceum
(Ehrenberg) Brébisson in Ralfs 1848

Penium margaritaceum Species: Cell body cylindrical, slightly depressed at center, 68-185 μm long, 14-22 μm wide; chloroplasts with longitudinal ridges; cell wall with small granules arranged longidudinally or sometimes irregularly; zygospores spherical or slightly elongated (Photomicrographs of the Fresh-water Algae, 1985).


Penium margaritaceum (Ehrenberg) Brébisson, stock Tts-1, axenic culture with KCM and Hyponex (December 22, 2001 to January 17, 2002), cell body μm long, μm wide, x 640, Showa Memorial Park, Tachikawa-ku, Tokyo, Japan, November 2001 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Penium Penium Penium Penium
Penium Penium Penium Penium Penium


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