In this paper we present a floristic survey of the Lycophyta and ferns from the Serra do Itajaí National Park, Santa Catarina. The National Park has an area of 57,475 ha, altitudes varying from 150 to 940 m and is covered by Atlantic Forest. We have found 190 intraspecific taxa (185 species, three subspecies and two varieties), distributed in 24 families and 73 genera. The most representative genera were: Asplenium (17 species), Thelypteris (10), Blechnum (8), and Lindsaea (7), besides the richest families Dryopteridaceae and Polypodiaceae with 23 and 29 species respectively. Special mention is made to Terpsichore chrysleri (Proctor ex Copel.) A.R. Sm and Polyphlebium hymenophylloides (Bosch) Ebihara & Dubuisson, which are first records for Santa catarina.
Atlantic Forest floristic; South Brazil
