New combinations and description of two new species in Pabstiella Brieger & Senghas (Orchidaceae) from Brazil

摘要

Five species of Pleurothallis R. Br. s.l. are transferred to Pabstiella Brieger & Senghas (Orchidaceae):armeniaca (Barb. Rodr.) L. Kollmann, Pabstiella fragae (L. Kollmann & A. P. Fontana) L. Kollmann, Pabstiella henrique-aragonii (Pabst) L. Kollmann, Pabstiella mentigera (Kraenzl.) L. Kollmann, Pabstiella ramphastorhyncha (Barb. Rodr.) L. Kollmann. Lepanthes armeniaca Barb. Rodr: is lectotypified. Two new species of Pabstiella, Pabstiella cipoensis L. Kollmann and Pabstiella rupicola L. Kollmann,are described and illustrated from Brazil. Information on the ecology and geographic distribution of the new taxa is also provided.