Thien, T.D., Quang, B.H., Anh, T.T.P., Hai, D.V. & Nuraliev, M.S. (2024) Petrocosmea albocaerulea (Gesneriaceae), a new species from northwestern Vietnam. Phytotaxa 678 (3): 193–200. https://doi.org/10.11646/phytotaxa.678.3.5