1. Azandi, L., Stévart, T., Sonké, B., Simo-Droissart, M., Avana, M.-L. & Droissart, V. (2016). Synoptic revision of the genus Cyrtorchis Schltr. (Angraecinae, Orchidaceae) in Central Africa, with the description of a new species restricted to submontane vegetation. Phytotaxa 267: 165 – 186.
2. Bolus, H. (1889). Contributions to South-African Botany. — Part IV. (With a revised list of published species of extra-tropical South-African orchids). J. Linn. Soc., Bot. 25: 156 – 210.
3. Bytebier, B. (2014). In: F. Martos, S. D. Johnson, C. I. Peter & B. Bytebier, A molecular phylogeny reveals paraphyly of the large genus Eulophia (Orchidaceae): A case for the reinstatement of Orthochilus. Taxon 63(1): 9 – 23.
4. Cribb, P. (1989). Flora of Tropical East Africa. Orchidaceae (part 3). A. A. Balkema, Rotterdam.
5. Cribb, P. (1996). New species and records of Orchidaceae from West Africa. Kew Bull. 51: 353 – 363.