This paper presents a taxonomic study of the genus Manettia Mutis ex L. in Paraná state (southern Brazil). Identification keys, geographic distribution maps, conservation status according to IUCN criteria, illustrations and photographs are presented. Ten species were reported for the state: M. chrysoderma Sprague, M. congestoides Wernham, M. cordifolia Mart., M. glaziovii Wernham, M. gracilis Cham. & Schltdl., M. paraguariensis Chodat., M. paranensis Standl., M. pubescens Cham. & Schltdl., M. tweedieana K. Schum., M. verticillata Wernham. Of these, M. congestoides is recorded for the first time for the southern region of Brazil.
Brazil; Manettia; Rubiaceae; Paraná state; taxonomy
