Barbosa, J. F. and Sakuragui, C. M. (2014) “Taxonomy and conservation of the Brazilian extra-Amazonian species of Philodendron subg. Pteromischum (Araceae) ”, Phytotaxa. Auckland, New Zealand, 191(1), pp. 45–65. doi: 10.11646/phytotaxa.191.1.3.