Abstract
In the course of preparing a generic treatment of the genus Stelis for Flora do Paraná, southern Brazil, historical material and literature of several taxa related to Stelis ciliaris have been studied and their morphologies and nomenclature elucidated. Stelis leinigii, S. mystax-felis, and Stelis uhlii are herein proposed as new synonyms for Stelis ciliaris. A lectoptype is selected for Stelis jimenezii and a brief nomenclatural note on Stelis confusa is provided. Illustrations, updated synonym list, and taxonomic discussions are also presented for Stelis ciliaris.