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 "Monadelphia" L. (1735), nom. inval.] see Class Monadelphia L. (1753), nom. inval.
                   [Order "Monadelphia Polyandria" L. (1735), nom. inval.] see Order Monadelphia Polyandria L. (1753), nom. inval.
                     [Genus "Urena" nom. inval.] see Genus Urena L. (1753)