Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Vegetabile L. (1735), nom. inval. - plant kingdom see Kingdom Plantae Haeckel (1866)
         Clandestinæ
           Class Cryptogamia L. (1735), nom. inval. see Class Cryptogamia L. (1753)
             Order Algae L. (1735), nom. inval. see Order Algae L. (1753)
               Genus Fucus Tourn. (1694), nom. inval. see Genus Fucus L. (1753)