Camellia phuongchiana (Theaceae, section Piquetia), a new species from Lam Dong Province, southern Vietnam

A new species of the genus Camellia (Theaceae, section Piquetia ), C. phuongchiana from Lam Dong Province, southern Vietnam, is described and illustrated. The new species appears to be morphologically closest to C. honbaensis and C. piquetiana in the section Piquetia , but it differs in having more petals, with both petal surfaces densely pubescent; young branches sparsely pubescent; smaller leaves, with the leaf bases broadly acute or obtuse; longer petioles; and longer and thinner pedicels. Data on phenology, distribution, ecology, and conservation status of the new species are given, and a key to all species of section Piquetia is provided.