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"]
                   14 [Class "Didynamia" L. (1735), nom. inval.] see Class Didynamia L. (1753), nom. inval.
                   15 [Class "Tetradynamia" L. (1735), nom. inval.] see Class Tetradynamia L. (1753), nom. inval.