In this work we present a floristic survey of the fern families Davalliaceae, Schizaeaceae, Vittariaceae, and Woodsiaceae occurring in "Parque Estadual das Fontes do Ipiranga" (PEFI). Davalliaceae, Vittariaceae, and Woodsiaceae are, each one, represented in the area by only one genus and one species: Nephrolepis cordifolia (L.) C. Presl, Vittaria lineata (L.) Sm., and Deparia petersenii (Kunze) M. Kato, respectively. This last species occurs in the area as sub spontaneous. There is also Schizaeaceae with two genera and three species: Anemia phyllitidis (L.) Sw., A. raddiana Link, and Lygodium volubile Sw. We also present keys to identify genera and species of Schizaeaceae, as well as description, geographical distribution, and comments for all taxa. Illustrations are presented just for some species.
Atlantic Forest; Lomariopsidaceae; Lygodiaceae; Pteridaceae
