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Chlorophyceae: Chlamydomonadales (Volvocales): Chlamydomonadaceae
Chlamydophyceae: Chlamydomonadales: Haematococcaceae
Volvocida: Chlamydomonadina: Chlamydomonadidae

Haematococcus sp.
(Girod) Rostafiniski, 1871
Syn: H. pluvialis Flotow, 1844

Haematococcus Genus: Unicellular, within a large spherical sheath; two equal-length flagella emerging from anterior end; cell body spherical or ellipsoidal, connected with gelatinous sheath by fine filaments; a single chloroplast cup-shaped, with several pyrenoids (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).

Haematococcus sp. ??, stock Gtap-2, axenic culture with KCM & Hyponex (from January 1 to February 8, 2005), cell body 10-13 μm in diam., x 640, Takasaki park, Takasaki city, Gunma Pref., Japan, April 11, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Haematococcus lacustris Haematococcus lacustris

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