Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["vegetable kingdom"]
           ["Cryptogams"]
             [Class Thallogens Lindl.]
               1 [Alliance Algales Lindley]
               2 [Alliance Mycetales Berk. (1857)] see Kingdom Fungi R.T.Moore (1980)