Lobosphaera is a genus of green algae in the family Trebouxiaceae.See the NCBI webpage on Lobosphaera. Data extracted from the It was originally described from soils in Austria, but has since been found in freshwater habitats and as a symbiont within lichens.
Lobosphaera consists of solitary, spherical cells around 15 μm in diameter, surrounded by a thin cell wall. Cells contain a single chloroplast that is parietal with marginal indentations. Chloroplasts lack pyrenoids but have starch grains. Reproduction is asexual and occurs by the formation of 4-32 autospores; these are released by the rupture of the parental cell wall. Species in the genus Lobosphaera have also been placed in Myrmecia.
References