Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["vegetable kingdom"]
           ["Cryptogams"]
             [Class Thallogens Lindl.]
               [Alliance Mycetales Berk. (1857)] see Kingdom Fungi R.T.Moore (1980)
                 ["Suballiance" Lichenales Lindl.]
                   [Order Gymnocarpei Schrad.]
                     1 [Tribe Caliciei Fr.]
                     2 [Tribe Glyphidei Fr.]
                     3 [Tribe Graphidei Fr.]
                     4 [Tribe Pyxinei Fr.]
                     5 [Tribe Coccocarpei Mont.]
                     6 [Tribe Collemacei Fr.]
                     7 [Tribe Lecidinei Fr.]
                     8 [Tribe Parmeliacei Fr.]