The present research is a survey of the genus Diplazium Sw. (Dryopteridaceae) in the Paraná State. The delimitation of the species was based on morphological characters and it was possible to recognize 11 species with the obtained data. Identification Key for the species, descriptions, comments, geographycal distribution and illustrations are presented.
Floristic survey; Diplazium; Dryopteridaceae; Paraná