"eudorina" colonies typically consist of 16, 32 or 64 cells, each of which is similar to "chlamydomonas reinhardtii". these cells are bedded within an extracellular matrix composed of glycoproteins. colonies are spherical and motile, with motility derived from the flagellated individual cells. "eudorina" is facultatively sexual, meaning colonies can reproduce either sexually or asexually. during development, each "chlamydomonas"-like cell undergoes several rounds of division to form plakeas, which then invert to form daughter colonies before hatching out of the mother colony.