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)
       Class Ulvophyceae K.R. Mattox & K.D. Stewart (1984) - ulvophytes
         1.1 Order Ulotrichales Borzi
         1.2 Order Ulvales Blackman & Tansley
         2.1 Order Trentepohliales Chadef. ex R.H. Thompson & D.E. Wujek (1997)
         2.2.1 Order Cladophorales Haeckel
         2.2.2.1 Order Caulerpales Schaffner (1922) see Order Bryopsidales J.H.Schaffn. (1922)
         2.2.2.2 Order Dasycladales Pascher (1931)