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
                             Infrakingdom Streptophyta Caval.-Sm. (1993)
                               [crown] Clade Phragmoplastophyta Lecointre & Le Guyader 2006 [Hall, McCourt, Delwiche, Mishler & Karol 2020]
                                 [crown] Clade Embryophytaᵀ Engler 1887 [Mishler & Qiu 2020]
                                   Phylum Bryophytaᵀ A.Braun (1864) - bryophytes
                                     [crown] Clade "Setaphyta" Puttick, Morris, Williams, Cox, Edwards, Kenrick, Pressel, Wellman, Schneider, Pisani & Donoghue 2018
                                       Subphylum Bryophytina Engl. (1892) - mosses
                                         Class Bryopsidaᵀ McClatchie (1897) - mosses
                                           Subclass Bryidaeᵀ Engl. (1892) - mosses
                                             Superorder Hypnanae W.R.Buck & Goffinet ex W.R. Buck, C.J. Cox, A.J. Shaw & Goffinet (2005)
                                               Order Hypnalesᵀ W.R. Buck & Vitt
                                                 Family Brachytheciaceae G.Roth
                                                   Genus Helicodontium Schwägr.