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 Watanabea clade Genus Watanabea N. Hanagata, I. Karube, Chihara & P.C.Silva (1998)