Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Vegetabile Regnum" nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866)
           ["Publicae"]
             ["Monoclinia"]
               ["Affinitas"]
                 [Class "Diadelphia" L. (1735), nom. inval.] see Class Diadelphia L. (1753), nom. inval.
                   [Order "Diadelphia Octandria" nom. inval.] see Order Diadelphia Octandria L. (1753), nom. inval.
                     1 [Genus "Polygala" nom. inval.] see Genus Polygala L. (1753)
                     2 [Genus "Heisteria" nom. inval.]