Gerlach, G. and Pupulin, F. 2020.

Stanhopeinae Mesoamericanae VI. On the identity of Polycycnis barbata (Orchidaceae), and other notes on the genus Polycycnis

. Phytotaxa. 432, 2 (Feb. 2020), 155–170. DOI:https://doi.org/10.11646/phytotaxa.432.2.5.