Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade neomura Cavalier-Smith, 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade discaria Cavalier-Smith, 2021
                 Clade natates Cavalier-Smith, 2021
                   Clade photaria Cavalier-Smith, 2021
                     Clade eucorta Cavalier-Smith, 2021
                       Superkingdom Corticata Lankester, 1878 - corticates
                         Kingdom Plantae Haeckel (1866) - plants
                           Clade Rhodaria Cavalier-Smith 2021
                             Subkingdom Rhodoplantae G.W.Saunders & Hommers. (2004) [monotypic]
                               Phylum Rhodophyta Wettst. (1901) - red algae
                                 Subphylum Eurhodophytina G.W.Saunders & Hommers. (2004)
                                   Class Florideophyceae Cronquist (1960)
                                     Subclass Rhodymeniophycidae G.W.Saunders & Hommers. (2004)
                                       Order Rhodymenialesᵀ F.Schmitz (1892)
                                         Family Rhodymeniaceaeᵀ Harvey (1849)
                                           Genus Cephalocystis Rees (1962)
                                           Genus Ceratodictyon Zanardini (1878)
                                           Genus Coelarthrum F. Børgesen (1910)
                                           Genus Epymenia Kuetzing (1849)
                                           Genus Erythrocolon J.Agardh, in A. Grunow (1873)
                                           Genus Erythrymenia Schmitz ex Mazza (1921)
                                           Genus Gloiosaccion Harv. (1859)
                                           Genus Hymenocladia J.Agardh (1852)
                                           Genus Leptosomia J.Agardh (1892)
                                           Genus Microphyllum Weber-van Bosse (1928)
                                           Genus Webervanbossea De Toni f. (1936)
                                           1 Genus Asteromenia Huisman & A.J.K.Millar (1996)
                                           2 Genus Botryocladia (J.Agardh) Kylin (1931), nom. cons.
                                           3 Genus Chrysymenia J.Agardh (1842)
                                           4 Genus Coelothrix Boergesen (1920)
                                           5 Genus Cordylecladia J.Agardh (1852)
                                           6 Genus Irvinea M.D. Guiry in G.W.Saunders, I.M. Strachan & Kraft (1999)
                                           7 Genus Rhodymeniaᵀ Grev. (1830), nom. cons., orth. cons.