Natura - nature
   Universum - universe see [unranked] Mundus Plinius
     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.
               Genus Pteris nom. inval. see Genus Pteris L. (1753)