Li, L., Hu, A.-Q., Wu, Q.-P., Wu, K.-L., Fang, L., & Zeng, S.-J. (2021). Reconsideration of the taxonomic status of Bulbophyllum obtusangulum (Orchidaceae) from southern China. Phytotaxa, 494(2), 219–224. https://doi.org/10.11646/phytotaxa.494.2.4