Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["vegetable kingdom"]
           ["Cryptogams"]
             [Class Acrogens Lindl.]
               [Alliance Muscales Lindl.]
                 [Hepaticæ Juss. (1789)]
                   [Natural order Jungermanniaceae Lindl.]
                     1 [Anthoceroteæ]
                     2 [Jungermannieæᵀ]
                     2.0 [Jungermanniæ] see [unranked] Jungermannieae