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"]
               ["Diffinitas"]
                 ["Subordinatio"]
                   [Class "Didynamia" L. (1735), nom. inval.] see Class Didynamia L. (1753), nom. inval.
                     [Order "Angiospermia" L. (1735), nom. inval.] see Order Angiospermia L. (1753), nom. inval.
                       ["Stigma simplex: Corollae personatae"]
                         [Genus "Melampyrum" nom. inval.] see Genus Melampyrum L. (1753)