Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         "Lapideum Regnum" nom. inval. - mineral kingdom
           Class "Petrae" - stones
             Order "Calcarii" - calcareous stones
               Genus "Marmor"
                 "Fugacia"
                   1 "Marmor fugax opacum" - gypsum
                   2 "Marmor fugax subdiaphanum" - alabaster