CALAZANS, L. S., and C. M. SAKURAGUI. “A New Species of Philodendron (Araceae) and a Key to Brazilian Atlantic Forest Species of P. Subgenus Pteromischum”. Phytotaxa, vol. 94, no. 2, Apr. 2013, pp. 49–55, doi:10.11646/phytotaxa.94.2.3.