Chlorophyta: Trebouxiophyceae: Trebouxia

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

Trebouxia sp.

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., Ikk-1, axenic culture with Hyponex & KCM, cell division, cell body μm long, μm wide, x 640, Kaga city, Ishikawa Pref., Japan, 2000 by Y. Tsukii