Carmo, J.A.M., Salas, R.M. & Simões, A.O. (2016)

An updated description of Galianthe vaginata (Spermacoceae, Rubiaceae), a species endemic to the Serra da Mantiqueira and Serra do Mar, Southeast Brazil

. Phytotaxa 258 (1): 89–94. https://doi.org/10.11646/phytotaxa.258.1.7