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Trebouxiophyceae (Pleurastrophyceae): Pleurastrales
(Chlorophyceae: Chlorococcales: Chlorococcaceae)

 Trebouxia sp.

Trebouxia Genus: Subaerial algae or a algal component of lichens; unicells; cell body 10-15 μm in diam., chlorplast(s) star-shaped or aggregated, with a single pyrenoid at the center (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:

Trebouxia sp., stock Ikk-2, cell body spherical, up to 20 μm in diam., chloroplast parietal with a large pyrenoid, x 400, x 640, Kaga city, Ishikawa Pref., Japan, 2000 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Trebouxia Trebouxia Trebouxia Trebouxia Trebouxia Trebouxia Trebouxia
Old culture, in most cells cell growth arrested after cell division
Trebouxia Trebouxia Trebouxia Trebouxia Trebouxia

Trebouxia, stock Ikk-2, old culture, cell body spherical in shape, 4-5.5 μm in diam., after prolonged culture cells became very small, x 400, x 640, Kaga city, Ishikawa Pref., Japan, 2000 by Y. Tsukii
Trebouxia Trebouxia

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