Viridiplantae Cavalier-Smith, 1981 - green plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
   Chlorophyta Pascher (1914) - green algae
     core chlorophytes
       Class Trebouxiophyceae T. Friedl (1995) - trebouxiophytes
         Choricystis clade
           1 Genus Choricystis (H. Skuja) Fott
           2 Genus Botryococcus F.T. Kützing (1849)
           3 Genus Coccomyxa W. Schmidle (1901)