Chlorokybus
Chlorokybus is a multicellular (sarcinoid) genus of basal green algae or charophyte.Each cell contains a single chloroplast which contains a central pyrenoid surrounded by grains of starch, as well as another pyrenoid (called the pseudopyrenoid) near the edge of the chloroplast which lacks starch grains.Zoospores swim to a new location and then settle, retracting their flagella and creating a new vegetative cell.[8] In 2021, a study showed that there were at least four other species, morphologically indistinguishable, but with deep genomic differences, suggesting divergences possibly about 76 million years ago.[7] Mesostigmatophyceae Spirotaenia Chlorokybophyceae Klebsormidiophyceae Charophyceae Coleochaetophyceae Zygnematophyceae Embryophyta Within the genus, the species were related as shown in the cladogram:[7] C. cerffii C. riethii C. bremeri C. atmophyticus C. melkonianii