Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Vegetabile Regnum" nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866)
           ["Clandestinae"]
             [Class "Cryptogamia" L. (1735), nom. inval.] see Class Cryptogamia L. (1753)
               1 [Order "Plantae" nom. inval.]
               1.0 [Order "Arbores" L. (1735), nom. inval.]
               2 [Order "Filices" L. (1735), nom. inval.] see Order Filices L. (1753), nom. inval.
               3 [Order "Musci" L. (1735), nom. inval.] see Order Musci L. (1753), nom. inval.
               4 [Order "Algae" L. (1735), nom. inval.] see Order Algae L. (1753)
               5 [Order "Fungi" L. (1735), nom. inval.] see Order Fungi L. (1753)