Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Regnum Vegetabile" L. (1753), nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866)
           [Class Cryptogamia L. (1753)]
             01 [Order Gonopterides Willd. (1804)]
             02 [Order Stachyopterides]
             03 [Order Poropterides]
             04 [Order Schismatopterides]
             05 Order Filices
             05.0 [Order "Filices" L. (1753), nom. inval. - ferns] see Order Filices
             06 [Order Hydropterides Willd. (1802)]
             06.0 [Order "Hydopterides" Willd. (1810), nom. inval.] see Order Hydropterides Willd. (1802)
             07 Order Musci
             07.0 [Order "Musci" L. (1753), nom. inval.] see Order Musci
             08 [Order Hepaticae]
             09 [Order Homallophyllae]
             10 [Cryptophyta Link (1824)]
             10.1 [Order Fungi L. (1753)]
             10.1.3 [Order Gasteromyci] see Order Gasteromycetes Fr. (1821)
             11 [Order Xylomyci]
             12 [Order Byssi]