Camellia wumingensis (Theaceae), a neglected species from Guangxi, China

Camellia wumingensis, a neglected species known only from limestone areas of Guangxi, China, is formally described and illustrated here. It is morphologically similar to C. flavida var. patens in having current-year branchlets purplish red, petiole adaxially grooved, flowers axillary or terminal, ovary glabrous, capsule oblate, and seeds brown, but is readily distinguished by the leaf texture and size, number of secondary veins, flower size, flower bud shape and size, number of petals, degree of fusion of the outer filaments, and pericarp thickness. Other related species C. flavida and C. pinguoensis var. terminalis are also compared with C. wumingensis in the paper, and the differences between them are obvious. In addition to a diagnosis and detailed description, information on the geographical distribution, images of morphological characters and pollen grains, and a provisional conservation status assessment are provided for this species.