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" "Rudia" 1 "Marmor rude" 2 "Marmor rude, venis qvartzosis rubris"