1. Agrawala, D.K., Chowdhery, H.J., and Chaudhery, S. (2010). New combinations in Indian Orchidaceae. Kew Bull. 65: 105-106. https://doi.org/10.1007/s12225-010-9179-2
2. Bruhl, P. (1926). A Guide to The Orchids of Sikkim. Published by J. Chaplin, of Thacher, Spink & Co, Calcutta
3. Chowdhery, H.J. (1998). Orchid Flora of Arunachal Pradesh. Bishen Singh Mahendra Pal Singh, Dehradun
4. Goverts, R., Bernet, P., Kratochvil, K., Gerlach, G., Carr, G., Alrich, P., Pridgeon, A.M., Pfahl, J., Campacci, M.A., Holland Baptista, D., Tigges, H., Shaw, J., Cribb, P., Alex George, Kreuz, K. and Wood, J. (2014). World checklist of Orchidaceae. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet; http://www.kew.org/wcsp/monocots/accessed 2014
5. King, G. and Pantling, R. (1896). A second series of new Orchids from Sikkim. Journal of the Asiatic Society of Bengal Pt. 2 Natural History, 65: 118-134
6. King, G. and Pantling, R. (1898). The Orchid of Sikkim Himalaya Ann. Roy. Bot. Gard. Calcutta, 8: 1-342, t. 1-448
7. Lucksom, S.Z. (2007). The Orchids of Sikkim and North East Himalaya. CONCEPT, Siliguri
8. Misra, S. (2007). Orchids of India-A Glimpse. Bishen Singh Mahendra Pal Singh, Dehradun
9. Pearce, N. and Cribb, P. (2002). The Orchids of Bhutan. Royal Botanical Garden, Edinburgh and the Royal Government of Bhutan
10. Pradhan, U.C. (1979). Indian Orchids: Guide to Identification and Culture 2. Kalimpong
11. Pridgeon, A.M., Cribb, P.J., Chase, M.W. and Rasmussen, F.N. (2001). Genera Orchidacearum Vol. 2, Part 1. Oxford University Press, Oxford
12. Srivastava, R.C. (1996). Orchidaceae. In: P. K. Hajra and D.M. Verma (eds.). Flora of Sikkim 1: 24 – 120. Botanical Survey of India, Calcutta