Phylum [Chlorophyta] Pascher (1914) - green algae
   Family Goniaceae (Pascher) Pascher (1931)
     Genus Gonium O.F.Müll. (1773)
       1 Gonium multicoccum
       2 Gonium pectorale O.F.Müll. (1773)
       3 Gonium octonarium M.A. Pocock
       4 Gonium discoideum G.W. Prescott (1942)
       5 Gonium formosum Pascher (1927)
       n.1 Gonium sacculiferum Scherffel see Basichlamys sacculifera (A. Scherffel, 1904) H.L. Skuja (1956)
       n.2 Gonium sociale (Dujardin, 1841) J.E.B. Warming (1876) see Tetrabaena socialis (Dujardin, 1841) H. Nozaki & M. Itoh (1994)