Pontes, T. A., Andrade, I. M., Schultz, M., & Mayo, S. J. (2016).

Ernst Ule’s collecting localities in the Serra do Sincorá, Bahia, Brazil and the  lectotypification of Anthurium petrophilum (Araceae)

. Phytotaxa, 266(2), 80–90. https://doi.org/10.11646/phytotaxa.266.2.2