Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [Vegetabilia mycetoidea]
           [Kingdom Gasteromyci] see Class Gasteromycetes Fr. (1821)
             [Circulus Aërogasteres]
               [Metamorphosis]
                 [Semicirculus Trichocisti] see Section Trichocisti Nees
                   1 [Series Lepidoti]
                   2 [Series Cancellati]
                   3 [Series Dissoluti]