Oliveira, J. F. C., Moreira, A. D. S., Santos, F. D. S. and Queiroz, L. P. D. (2025) “News in Paypayrola (Violaceae): Two new species from the Brazilian Amazon”, Phytotaxa. Auckland, New Zealand, 728(3), pp. 285–293. doi: 10.11646/phytotaxa.728.3.4.