Viridiplantae Cavalier-Smith, 1981 - green plants see Subkingdom Viridiplantae Caval.-Sm. (1981) Chlorophyta Pascher (1914) - green algae core chlorophytes Class Chlorophyceae Wille (1884) - chlorophytes Chlamydomonadales F.E. Fritsch Genus Chlamydomonas Ehrenb. (1834) Chlamydomonas nivalis (F.A. Bauer, 1819) J.N.F. Wille (1903)