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 Order Trebouxiales Friedl Genus Trebouxia Puymaly (1924)