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