Nauclea
Nauclea is a genus of flowering plants in the family Rubiaceae. The species are evergreen trees or shrubs that are native to the paleotropics. The terminal vegetative buds are usually strongly flattened. The generic name is derived from the Ancient Greek words "naus", meaning "ship" and "kleio", meaning "to close". It refers to the resemblance of the cells of the capsule to a ship's hull. Cultivation and use. "Nauclea diderrichii" is a large tree from West Africa that is widely cultivated elsewhere. Its wood is resistant to borers and is used around harbors and in other places where  wood is in constant contact with water. Taxonomy. "Nauclea" is a member of the tribe Naucleeae and is sister to a clade consisting of "Burttdavya" and "Sarcocephalus". The current type species for the genus is "Nauclea orientalis". Linnaeus originally named it "Cephalanthus orientalis" in the first edition of "Species Plantarum" but transferred it to "Nauclea" when he erected that genus in the second edition in 1762.