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]
                                   Clade Pan-Tracheophytaᵀ Cantino & Donoghue 2007 [Cantino & Donoghue 2020]
                                     Clade Apo-Tracheophytaᵀ Cantino & Donoghue 2007 [Cantino & Donoghue 2020]
                                       [crown] Phylum Tracheophytaᵀ Sinnott ex Caval.-Sm. (1998) - vascular plants
                                         [Subphylum Pteridophytina (Eichler) Cavalier-Sm. (1998) - pteridophytes] see Infraphylum Moniliformopses Kenrick & P.R.Crane (1997), nom. inval.
                                           [Infraphylum Filices (L.) Cavalier-Sm. (1998) - ferns] see Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966)
                                             [Class Filicopsidaᵀ C.Agardh (1822) - ferns] see Class Polypodiopsida Cronquist, Takht. & Zimmerm. (1966)
                                               [Order Filicalesᵀ Dumort. (1829), nom. illeg.] see Order Polypodiales Link (1833)
                                                 [Family Filicaceaeᵀ Juss. (1789), nom. illeg.] see Family Woodsiaceae Herter (1949)
                                                   [Genus Filixᵀ Adans. (1763), nom. illeg.] see Genus Cystopteris Bernh. (1805)
                                                     1 [Filix bulbiferaᵀ (L.) Underw.] see Cystopteris bulbifera (L.) Bernh. (1806)