The typification of 53 orchid species described by Rudolf Schlechter based on specimens gathered in Costa Rica Paul (Pablo) Biolley, Juan José Cooper Sandoval, Auguste R. Endrés, Carl Hoffmann, Emel Jiménez Segura, Otón Jiménez, Friedrich Lehmann, Ferdinand Nevermann, Richard Pfau, and Henry Pittier the late 19th early 20th centuries is discussed, lectotypes are designated when necessary. Short...