Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Vegetabile Regnum" nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866)
           ["Clandestinae"]
             [Class "Cryptogamia" L. (1735), nom. inval.] see Class Cryptogamia L. (1753)
               [Order "Filices" L. (1735), nom. inval.] see Order Filices L. (1753), nom. inval.
                 01 [Genus "Eqvisetum" nom. inval.] see Genus Equisetum L. (1753)
                 01.0 [Genus "Equisetum" nom. inval.] see Genus Equisetum L. (1753)
                 02 [Genus "Ophioglossum" Tourn., nom. inval.] see Genus Ophioglossum L. (1753)
                 02.0 [Genus "Lunaria" H.B. Ruppius, nom. inval.] see Genus Ophioglossum Tourn., nom. inval.
                 03 [Genus "Osmunda" nom. inval.] see Genus Osmunda L. (1753)
                 04 [Genus "Pteris" nom. inval.] see Genus Pteris L. (1753)
                 04.0 [Genus "Thilypteris" J.J. Dillenius, nom. inval.] see Genus Pteris nom. inval.
                 05 [Genus "Lonchitis" nom. inval.] see Genus Lonchitis L. (1753)
                 06 [Genus "Adianthum" nom. inval.] see Genus Adiantum L. (1753)
                 06.0 [Genus "Adiantum" Hippocrates, nom. inval.] see Genus Adiantum L. (1753)
                 07 [Genus "Asplenium" nom. inval.] see Genus Asplenium L. (1753)
                 08 [Genus "Hemionitis" Tourn., nom. inval.] see Genus Hemionitis L. (1753)
                 09 [Genus "Polypodium" Tourn., nom. inval.] see Genus Polypodium L. (1753)
                 10 [Genus "Acrosticum" L. (1735), nom. inval.] see Genus Acrostichum L. (1753)
                 10.0 [Genus "Muraria" nom. inval.] see Genus Acrosticum L. (1735), nom. inval.
                 11 [Genus "Trichomanes" nom. inval.] see Genus Trichomanes L. (1753)