Volvox: Volvox is a polyphyletic genus of chlorophyte green algae in the family Volvocaceae. These organisms usually form spherical colonies of up to 50,000 cells, which is why they are known as "globe algae." Volvox belongs to a larger group of multicellular species known as volvocine algae. Volvox is a polyphyletic genus of chlorophyte green algae that forms spherical colonies composed of thousands of cells and inhabits various freshwater environments. The origins of Volvox, a captivating microorganism, are steeped in mystery, intertwining with the annals of scientific exploration. Volvox is a polyphyletic genus of chlorophyte green algae that form colonies of up to 50,000 cells. Learn about its history, description, reproduction, and colony inversion, and see its phylogenetic classification and synonyms. Volvox is a multicellular green algae which belongs to the division Chlorophyta. The diagram of volvox shows that it has a unique spherical colony structure, having numerous flagellated cells known as zooids embedded in a gelatinous matrix.