Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         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
                           Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
                             Phylum Chlorophyta Pascher (1914) [coordinate rank] - green algae
                               "core chlorophytes"
                                 Class Chlorophyceae Wille (1884) - chlorophytes
                                   Order Sphaeropleales Luerssen (1877)
                                     Family Characiaceae (Nägeli) Wittrock
                                       01 Genus Actidesmium Reinsch (1875) [monotypic]
                                       02 Genus Bicuspidella Pascher (1932)
                                       03 Genus Characiella W. Schmidle, in A. Engl. (1902) [monotypic]
                                       04 Genus Characiellopsis M.O.P. Iyengar (1975)
                                       05.1 Genus Characiumᵀ A.Braun, in F.T. Kützing (1849)
                                       06 Genus Coleochlamys O. Korshikov
                                       07 Genus Deuterocharacium Petrý [monotypic]
                                       08 Genus Hydrianum Rabenh. (1868)
                                       09 Genus Lanceola F. Hindák (1988) [monotypic]
                                       10 Genus Marthea Pascher (1918) [monotypic]
                                       11 Genus Pseudochlorothecium Korshikov [monotypic]
                                       12 Genus Pseudoschroederia E. Hegewald & E. Schnepf [monotypic]
                                       13 Genus Sykidion E.P. Wright (1881)