title: Typification of names of South American taxa related to Woodsia montevidensis (Woodsiaceae).
abstract: A revision of the nomenclature of six South American taxa related to Woodsia is presented, as a part of a taxonomic revision of the genus in South America. Lectotypes are selected for Cheilanthes crenata, Woodsia crenata var. pallidipes, Woodsia incisa, Woodsia montevidensis var. fuscipes and the second step lectotypification for Dicksonia montevidensis and Woodsia peruviana, based on the analysis of their protologues and original herbarium material. All names are currently synonyms of Woodsia montevidensis. Physematium incisum (Gillies ex Hook. & Grev.) Kunze constitutes an illegitimate name and Physematium cumingianum is considered as nomen inquirendum.
authors.affiliation: Orientación Botánica II, Departamento de Ciencias Naturales, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Ruta 36 km 601, X5804ZAB Río Cuarto, Córdoba, Argentina.
authors.forename: Marcelo D
authors.initials: MD
authors.lastname: Arana
authors.affiliation: Instituto de Pesquisa Jardim Botânico do Rio de Janeiro, Pacheco Leão 915, 22460-030, Rio de Janeiro, RJ, Brazil.
authors.forename: Claudine M
authors.initials: CM
authors.lastname: Mynssen
authors.affiliation: Botanical Garden & Botanical Museum Berlin-Dahlem, Königin-Luise Str. 6-8, D-14195 Berlin, Germany.
authors.forename: Brigitte
authors.initials: B
authors.lastname: Zimmer
authors.affiliation: Instituto de Botánica Darwinion (ANCEFN-CONICET), Labardén 200, Casilla de Correo 22, B1642HYD San Isidro, Buenos Aires, Argentina.
authors.forename: M Monica
authors.initials: MM
authors.lastname: Ponce
keywords: Cheilanthes; Diacalpe; Physematium; Woodsia; Woodsiaceae; nomenclature