Prain ex Collett & Hemsl. 1890 - Collett H, Hemsley WB (1890) On a Collection of Plants from Upper Burma and the Shan States. Journal of the Linnean Society of London, Botany 28(189-191): 1-150. doi: 10.1111/j.1095-8339.1890.tb01452.x.
No known synonyms