Flora van Nederland Haeckel (1866) - plants
   Division Spermatophyta Goebel (1882) see Phylum Spermatophyta Goebel (1882)
     Subdivision Angiospermae J. Lindley (1830) see Infraphylum Angiospermae auct.
       Class Dicotyledones see Class Magnoliopsida Brongn. (1843)
         Order Gentianales Juss. ex Bercht. & J.Presl (1820)
           Family Rubiaceae Juss. (1789), nom. cons. - coffee family
             1 Genus Sherardia L. (1753)
             2 Genus Asperula L. (1753)
             3 Genus Galium L. (1753)
             4 Genus Cruciata Mill. (1754)
             5 Genus Rubia L. (1753)