title: [Six new species and two new records of (Pteridophyta) from Costa Rica ].
abstract: Six new species of Pteridophyta from Costa Rica are described: Dryopteris flaccisquama A. Rojas, Hypolepis lellingeri A. Rojas, H. moraniana A. Rojas, Melpomene alan-smithii A. Rojas, Selaginella osaënsis A. Rojas and Terpsichore esquiveliana A. Rojas. Blechnum stoloniferum (Mett. ex E. Fourn.) C. Chr. and Trichomanes micayense Hieron. are new records for the country. Only D. flaccisquama and M. alan-smithii are present outside Costa Rica.
authors.affiliation: Instituto Nacional de Biodiversidad, Apdo. 22-3100, Santo Domingo, Heredia, Costa Rica. arojas@xanum.uam.mx
authors.forename: A F
authors.initials: AF
authors.lastname: Rojas-Alvarado
mesh_terms: D003364:Costa Rica; D029624:Ferns / Q000033:anatomy & histology / Q000145:classification*
vernacular_title: Seis especies nuevas y dos nuevos registros de helechos (Pteridophyta) para Costa Rica.