Lozada-Pérez, L., Ramírez-Marcial, N. and González-Martínez, S.A. 2020.

Ruehssia sumiderensis (Apocynaceae), a new species from Chiapas state, Mexico

. Phytotaxa. 440, 1 (Apr. 2020), 69–80. DOI:https://doi.org/10.11646/phytotaxa.440.1.4.