Kingdom Protoctista Hogg, 1860 Phylum Chlorophyta Pascher (1914) - green algae Class Chlorophyceae Wille (1884) - chlorophytes Order Chlamydomonadales F.E. Fritsch Family Chlamydomonadaceae F. Stein (1878) Genus Chlamydomonas Ehrenb. (1834)