Inda, L.A., Pimentel, M., Chase, M.W. (2012) Phylogenetics of tribe Orchideae (Orchidaceae: Orchidoideae) based on combined DNA matrices: inferences regarding timing of diversification and evolution of pollination syndromes, Annals of Botany, 110(1), pp. 71-90.
Emonocot.org 2013. Orchideae in The Orders and Families of Monocotyledons. Published on the internet. Accessed: 2013 May 15.