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Chlorophyta: Chlorophyceae: Chlamydomonadales (Volvocales): Chlamydomonadaceae
Haematococcus lacustris
(Girod) Rostafiniski, 1871
Syn: H. pluvialis Flotow, 1844
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).
Species:
Haematococcus lacustris,
tape No. 0044, time code 0000,
cell body 18 μm long, 14 μm wide, flagella 29 μm long,
test 27 μm long, 23 μm wide,
2 equal-length flagella, a large chlroplast, anterior papilla,
Japan, September 5, 1999, courtesy of N. Kinoshita, by Y. Tsukii
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