Oses Salas, L. & A. P. Karremans. 2016. A note on Masdevallia zahlbruckneri and M. utriculata (Orchidaceae). Harvard Papers in Botany 21(2): 325-336.

Abstract. Masdevallia utriculata and M. zahlbruckeri are characterized and illustrated based on living plants from Costa Rica. The species are compared with each other on the basis of their general similar morphology. Their taxonomic status is reviewed.

Key words: Masdevallia utriculata, M. zahlbruckneri, new record, taxonomy, Zahleria

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