Barbosa, J.F. and Sakuragui, C.M. 2014. Taxonomy and conservation of the Brazilian extra-Amazonian species of Philodendron subg. Pteromischum (Araceae) . Phytotaxa. 191, 1 (Dec. 2014), 45–65. DOI:https://doi.org/10.11646/phytotaxa.191.1.3.