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
         Ulvales-Ulotrichales
           Genus Pseudoneochloris S. Watanabe, A. Himizu, L.A. Lewis, G.L. Floyd & P.A. Fuerst (2000)