Seidenfaden, G. 1973. Notes on Cirrhopetalum Lindl. Dansk Bot. Ark. 29(1):1 - 260.
Seidenfaden, G. 1979. Orchid Genera in Thailand VIII. Bulbophyllum Thouars. Dansk Bot. Ark. 33(3): 1 - 228.
Vermeulen, J.J. 1991. Orchids of Borneo, vol. 2: Bulbophyllum. Bentham - Moxon Trust, Royal Botanic Gardens, Kew and Toihaan Publishing Company, Kota Kinabalu, in association with the Sabah Society, Kota Kinabalu.
Vermeulen, J.J. 1993. A taxonomic revision of Bulbophyllum sections Adelopetalum, Lepanthanthe, Macrouris, Pelma, Peltopus and Uncifera (Orchidaceae). Orchid Monogr. 7: 1 - 324.
Vermeulen, J.J. 2002. A taxonomic revision of Bulbophyllum 2: sections Altisceptrum and Hirtula. Gard. Bull. Singapore 54: 1 151.
Vermeulen, J.J. & P. O'Byrne. 2008. Thirty two new species of Bulbophyllum (Orchidacea) from Sulawesi. Gard. Bull. Singapore 60: 73 - 153.
Vermeulen, J.J. 2008. New species of Bulbophyllum from eastern Malesia (Orchidacea). Nordic J. Botany 26: 129 - 195.