Cell body spherical in shape, 18-28 μm in diam.;
a single pyrenoid located at the center of the cell body;
papillae absent; stigma and nucleus located anteriorly
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
Carteria globosa Korschikoff in Pascher 1927 ?,
cell body nearly spherical 17 μm in diam.,
x 640, Okubo Ryoke (picnic-no-mori), Akigase park, Saitama city, Saitama Pref., Japan, April 17, 2005 by Y. Tsukii
94 μm; x 640