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Trebouxiophyceae (Pleurastrophyceae): Pleurastrales:
(Chlorophyceae: Trentepohliales: Trentepohliaceae)

 Leptosira sp.

Leptosira Genus: Subaerial algae, irregularly branched; cell division by septum formation; asexual reproduction by zoospore; cell body contains a large vacuole (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:

Leptosira sp. ?, cell body 6-11 μm long, 7 μm wide, x 640, Showa Memorial Park, Tachikawa-ku, Tokyo, Japan, November 2001 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Leptosira Leptosira Leptosira Leptosira

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