Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Lapideum - mineral kingdom
         Class Mineræ - minerals
           Order Salia - salts
             Genus Alumen
               1 Alumen nudum
               1.0 Alumen plumosum see Alumen nudum
               2 Alumen schisti
               2.0 Fissilis aluminaris see Alumen schisti