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

Chlamydomonas monadina
Stein 1878 var. longirubra Ettl 1976
Syn: C. cingulata Pascher 1927

Chlamydomonas monadina 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).


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
scale 31 μm scale 63 μm scale 94 μm; x 640
Chlamydomonas monadina Chlamydomonas monadina Chlamydomonas monadina Chlamydomonas monadina
Chlamydomonas monadina Chlamydomonas monadina Chlamydomonas monadina Chlamydomonas monadina
Chlamydomonas monadina Chlamydomonas monadina Chlamydomonas monadina

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
scale 31 μm scale 63 μm scale 94 μm; x 640
Chlamydomonas monadina Chlamydomonas monadina Chlamydomonas monadina


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