Viridiplantae Cavalier-Smith, 1981 - green plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
   Chlorophyta Pascher (1914) - green algae
     core chlorophytes
       1 Chlorodendrophyceae
       2.1 Class Trebouxiophyceae T. Friedl (1995) - trebouxiophytes
       2.2.1.1 Genus Leptosira A. Borzí (1883)
       2.2.1.2 Class Chlorophyceae Wille (1884) - chlorophytes
       2.2.2 Class Ulvophyceae K.R. Mattox & K.D. Stewart (1984) - ulvophytes