Chlorophyceae:
Chlamydomonadales (Volvocales): Chlamydomonadaceae
Volvocida: Chlamydomonadina: Chlamydomonadidae
Chlamydomonas monadina
Stein 1878 var. longirubra Ettl 1976
Syn: C. cingulata Pascher 1927
Species: Cell body broad ellipsoidal or nearly spherical, 18-35 μm in diam.;
papilla broad with flattened apex; chloroplast cup-shaped; a pyrenoid horseshoe-shaped, located
beneath equatorial line or slightly posterior; stigma longitudinally elongated, thin,
located at equator or slightly anterior; nucleus at anterior half of the cell body.
[ var. globulifera (Korschikoff) Korschikoff 1938]:
Papilla narrower and more protruded; cellwall thick; with several pyrenoids irregular in shape.
[ var. perforata Vlk 1940]:
Pyrenoid ring-form.
[ var. longirubra Ettl 1976]:
Stigma large, elongated, stick-like in shape, longitudinally located at anterior half of the cell;
papilla more broad and short; a pyrenoid elongated, curved as half-ring
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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Chlamydomonas monadina var. longirubra Ettl,
cell body 22 μm long, 19 μm wide,
a pyrenoid horse-shoe shaped,
two contractile vacuoles at the base of flagella,
papilla present, stigma thin long located at anterior half,
x 640, Akigase Park, Saitama city, Saitama Pref., Japan, March 2002 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
An algal parasite, Rhyzophydium sp. (Chytridiales, Chytridiomycota, Eumycota) attached Chlamydomonas monadina,
C. monadina cell body 17 μm long, 16 μm wide,
Rhyzophydium cell body spherical 2 μm in diam.,
x 640, Akigase Park, Saitama city, Saitama Pref., Japan, March 2002 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
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