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Chlorophyceae: Sphaeropleales: Sphaeropleaceae

Sphaeroplea annulina
(Roth) Agardh

Sphaeroplea Genus: Filament without branching; cell body very long, cylindrical in shape, with many ring-shaped chloroplasts; sexual reproduction by oocyte and sperm (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species: Filamentous algae without branching; cell body cylindrical, very long, 300-500 μm long, 30-50 μm wide, with many nuclei (Illustrations of The Japanese Fresh-water Algae, 1977).


Sphaeroplea annulina (Roth) Agardh, cell body elongated, 24 μm wide, x 640, rice field near Hanekura bridge, Muneoka, Shiki city, Saitama Pref., Japan, May 30, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Sphaeroplea Sphaeroplea Sphaeroplea Sphaeroplea
Sphaeroplea Sphaeroplea Sphaeroplea Sphaeroplea Sphaeroplea


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