Yudistira, Y.R., Randi, A., Joharudin, D. and Mustaqim, W.A. 2025. Contributions to the orchid flora of Kalimantan II: A new Bulbophyllum sect. Macrocaulia from Mount Bukit Raya, Indonesia. Phytotaxa. 700, 3 (May 2025), 251–256. DOI:https://doi.org/10.11646/phytotaxa.700.3.1.