Kingdom Protoctista Hogg, 1860 Phylum Chlorophyta Pascher (1914) - green algae Class Chlorophyceae Wille (1884) - chlorophytes Order Chlorococcales Pascher see Order Chlamydomonadales F.E. Fritsch Family Coccomyxaceae G.M. Sm. Genus Sphaerocystis R. Chodat (1897)