Nomenclatural notes on species of Cleistes (Orchidaceae: Vanilloideae) described by João Barbosa Rodrigues

During our taxonomic study of Cleistes, we noticed that some species names published (under the genus name Pogonia) by the Brazilian botanist Jo?o Barbosa Rodrigues needed revision. In our search for type specimens, we found the holotypes of Pogonia aphylla and P. paranaensis in the herbarium of the Museu Nacional do Rio de Janeiro (R), and the holotype of P. monantha at the herbarium of the Swedish Museum of Natural History (S). The remaining type specimens housed at RB herbarium have been lost. Consequently, the designation of lectotypes for those species names is needed. Therefore, the original illustrations are here designated as lectotypes of eleven species names. Furthermore, we also propose 14 synonyms for South American Cleistes.

Automated summary

During the taxonomic study of Cleistes, revisions were needed for species names published under the genus name Pogonia by Brazilian botanist João Barbosa Rodrigues. Type specimens were found in the herbarium of the Museu Nacional do Rio de Janeiro and the Swedish Museum of Natural History, while those at the RB herbarium were lost, requiring the designation of lectotypes for those species names. Additionally, 14 synonyms for South American Cleistes were proposed.