Viridiplantae Cavalier-Smith, 1981 - green plants see Subkingdom Viridiplantae Caval.-Sm. (1981)
   Chlorophyta Pascher (1914) - green algae
     core chlorophytes
       Class Ulvophyceae K.R. Mattox & K.D. Stewart (1984) - ulvophytes
         Order Cladophorales Haeckel
           Siphonocladus clade
             1 Genus Valonia C.Agardh (1823)
             2 Genus Boergesenia J. Feldmann (1938)
             3 Genus Dictyosphaeria Decaisne ex Endl. (1843)