Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Lapideum - mineral kingdom
         Class Mineræ - minerals
           Order Salia - salts
             Genus Vitriolum
               1 Vitriolum ferri viride
               1.0 Vitriolum martis see Vitriolum ferri viride
               2 Vitriolum cupri cœruleum
               2.0 Vitriolum cyprinum see Vitriolum cupri coeruleum