This study deals with the survey of ferns and lycophythes from Parque Estadual do Guartelá, Paraná State, Brazil. The area is characterized by a mosaic of distinct vegetational and geological formations. We found 164 species, distributed in 18 families and 59 genera. It was evident that the vegetational/geological configuration is a determining factor on the habitat preference of the species. Cheilanthes goyazensis and Phlegmariurus badinianus are the first records for the Paraná State, while Lindsaea stricta is the second record for the State. Beside those, Anemia ferruginea and Cyathea myriotricha constitute the third record for the State. We also found eight new records for the Segundo Planalto Paranaense. We conclude that the environmental heterogeneity is directly related to the high floristic richness found in the park.
campos gerais; canyon; rupestrian field; sandstone
