Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [Vegetabilia mycetoidea]
           [Kingdom Gasteromyci] see Class Gasteromycetes Fr. (1821)
             1 [Circulus Aërogasteres]
             2 [Circulus Geogastri] see Section Lycoperdinei