Camellia annamensis (Theaceae), a new species from central Vietnam

Camellia annamensis , a new species of Camellia sect. Piqueti a (Theaceae) from central Vietnam is described and illustrated. It is most similar to Camellia l o n g i i , but differ s by its mature leaves sparsely appressed puberulous abaxially and leaf margins shallowly and widely denticulate , lateral veins 10-13 pairs , sparsely appressed puberulous petioles , sepals 5 , petals 20-22 , flattened-globose ovary and styles tomentose and free to base. Information on distribution , ecology , phenology , vernacular name , uses and conservation assessment of this new taxon, along with a key to distinguish the species of Camellia sect. Piquetia in Vietnam ar e also provided.