Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         ["Vegetabile Regnum" nom. inval. - plant kingdom] see Kingdom Plantae Haeckel (1866)
           ["Publicae"]
             ["Monoclinia"]
               ["Diffinitas"]
                 ["Indifferentismus"]
                   [Class "Triandria" L. (1735), nom. inval.] see Class Triandria L. (1753), nom. inval.
                     [Order "Triandria Digynia" L. (1735), nom. inval.] see Order Triandria Digynia L. (1753), nom. inval.
                       ["Calyx multiflorus"]
                         01 [Genus "Melica" nom. inval.] see Genus Melica L. (1753)
                         02 [Genus "Aira" nom. inval.] see Genus Aira L. (1753)
                         03 [Genus "Poa" nom. inval.] see Genus Poa L. (1753)
                         04 [Genus "Briza" L. (1735), nom. inval.] see Genus Briza L. (1753)
                         05 [Genus "Uniola" nom. inval.] see Genus Uniola L. (1753)
                         06 [Genus "Cynosurus" nom. inval.] see Genus Cynosurus L. (1753)
                         07 [Genus "Bromus" L. (1735), nom. inval.] see Genus Bromus L. (1753)
                         08 [Genus "Festuca" L. (1735), nom. inval.] see Genus Festuca L. (1753)
                         09 [Genus "Avena" nom. inval.] see Genus Avena L. (1753)
                         10 [Genus "Arundo" nom. inval.] see Genus Arundo L. (1753)
                         11 [Genus "Lolium" nom. inval.] see Genus Lolium L. (1753)
                         12 [Genus "Triticum" nom. inval.] see Genus Triticum L. (1753)
                         13 [Genus "Secale" nom. inval.] see Genus Secale L. (1753)
                         14 [Genus "Hordeum" nom. inval.] see Genus Hordeum L. (1753)
                         15 [Genus "Elymus" L. (1748), nom. inval.] see Genus Elymus L. (1753)