Lantz (N.E.Br.) 2004 - Lantz H, Bremer B (2004) Phylogeny inferred from morphology and DNA data: characterizing well-supported groups in Vanguerieae (Rubiaceae). Botanical Journal of the Linnean Society 146(3): 257-283. doi: 10.1111/j.1095-8339.2004.00338.x.
There is no corrections for Afrocanthium gilfillanii yet.