Carmo, J.A.M., Salas, R.M. and 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 (Apr. 2016), 89–94. DOI:https://doi.org/10.11646/phytotaxa.258.1.7.