Genus Spathoglottis

Howcroft, N.H.S. 1986. The taxonomy of Spathoglottis Blume. Orchadian 8: 139-148.
Howcroft, N.H.S. 1992. A taxonomic revision of the genus Spathoglottis (Orchidaceae) in Papuasia. Unpublished Master thesis, University of Technology, Lae, Papua New Guinea.
Howcroft, N.H.S. 1996. Reproductive biology of Spathoglottis (Orchidaceae). Sci. New Guinea 21: 159-175.
Pridgeon, A. M., P.J. Cribb, M.W. Chase & F.N. Rasmussen (Eds.). 2005. Genera Orchidacearum, Volume 4: Epidendroideae (Part one). P. 156. Oxford University Press, Oxford.