Romero, B.J.Z., Carnevali, G. and Solano, R. 2020.

Maxillaria purpureo-nigra (Orchidaceae: Maxillariinae), a new species from Southwestern Ecuador belonging to Maxillaria sect. Rufescens

. Phytotaxa. 477, 2 (Dec. 2020), 205–216. DOI:https://doi.org/10.11646/phytotaxa.477.2.5.