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
                           Subkingdom Viridiplantae Caval.-Sm. (1981) - green plants
                             Phylum Chlorophyta Pascher (1914) [coordinate rank] - green algae
                               "core chlorophytes"
                                 Class Chlorophyceae Wille (1884) - chlorophytes
                                   Order Chlamydomonadales F.E. Fritsch
                                     Family Chlorococcaceae Blackman & Tansley
                                       Genus Tetracystis R.M. Brown & Bold (1964)
                                         01 Tetracystis aeriaᵀ R.M. Brown & Bold (1964)
                                         02 Tetracystis aggregata R.M. Brown & Bold
                                         03 Tetracystis aplanospora (Arce & Bold) R.M. Brown & Bold
                                         03.0 ["Tetracystis aplanosporum"] see Tetracystis aplanospora (Arce & Bold) R.M. Brown & Bold
                                         04 Tetracystis compacta Schwarz
                                         05 Tetracystis diplobionticoidea (Chantanachat & Bold) Archibald & Bold
                                         06 Tetracystis dissociata R.M. Brown & Bold
                                         07 Tetracystis elliptica Nakano (1984)
                                         08 Tetracystis excentrica R.M. Brown & Bold
                                         09 Tetracystis fissurata Nakano (1984)
                                         10 Tetracystis illinoisensis R.M. Brown & Bold
                                         11 Tetracystis intermedia (Deason & Bold) R.M. Brown & Bold
                                         11.0 ["Tetracystis intermedium"] see Tetracystis intermedia (Deason & Bold) R.M. Brown & Bold
                                         12 Tetracystis isobilateralis R.M. Brown & Bold
                                         13 Tetracystis macrostigmata Nakano (1984)
                                         14 Tetracystis micropyrenoides Nakano (1984)
                                         15 Tetracystis nagasakiensis Nakano (1984)
                                         16 Tetracystis pampae R.M. Brown & Bold
                                         17 Tetracystis pulchra R.M. Brown & Bold
                                         18 Tetracystis sarcinalis Schwarz
                                         19 Tetracystis tetraspora (Arce & Bold) R.M. Brown & Bold
                                         19.0 ["Tetracystis tetrasporum"] see Tetracystis tetraspora (Arce & Bold) R.M. Brown & Bold
                                         20 Tetracystis texensis R.M. Brown & Bold
                                         21 Tetracystis vinatzeri Ettl & Gaertner (1987)