Kingdom Chlorobionta Jeffrey, 1982 see [unranked] Chloroplastida S.M. Adl et al., 2005
   Division Chlorophyta Reichenbach (1834) - green algae sensu stricto see Phylum Chlorophyta Pascher (1914)
     Subdivision Chlorophytina see Phylum Chlorophyta Pascher (1914)
       1 Class Ulvophyceae K.R. Mattox & K.D. Stewart (1984) - ulvophytes
       2.1 Class Trebouxiophyceae T. Friedl (1995) - trebouxiophytes
       2.2 Class Chlorophyceae Wille (1884) - chlorophytes