Natura - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Vegetabile Regnum nom. inval. - plant kingdom see Kingdom Plantae Haeckel (1866)
         Publicae
           Diclinia
             Class Monoecia L. (1735), nom. inval. see Class Monoecia L. (1753), nom. inval.
               Order Monoecia Tetrandria L. (1735), nom. inval. see Order Monoecia Tetrandria L. (1753), nom. inval.
                 Genus Betula nom. inval. see Genus Betula L. (1753)