Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         "Lapideum Regnum" nom. inval. - mineral kingdom
           Class "Fossilia" nom. inval. - Lapides aggregati
             Order "Terrae"
               Genus "Ochra" - ochre
                 1 "Ochra ferri lutea"
                 2 "Ochra ferri lutea argentifera"
                 3 "Ochra cupri coerulea"
                 4 "Ochra cupri viridis"