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Chlorophyceae: Chlorococcales: Micractiniaceae

Micractinium sp.
Fresenius

Micractinium Family: Unicellular or Colonial; cell body spherical, with one or more spiny projections; a single cup-shaped chloroplast with a pyrenoid; asexual reproduction by zoospore or autospore; sexual reproduction by fertilization between egg and sperm.
Genus: Colonial; cell body with 2 or more spiny hairs (Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Similar genus --> Golenkinia; Franceia; Acanthosphaera;


Micractinium sp., cell body μm long, μm wide, L/W=, x 640, Old Sugata river, Yasuzuka, Mibu town, Tochigi Pref., Japan, May 5, 2008 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Micractinium Micractinium Micractinium

Images of collecting locality: Old Sugata river, Yasuzuka, Mibu town, Tochigi Pref., Japan, May 5, 2008 by Y. Tsukii


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