Abstract
A floristic inventory of pteridophytes was carried out in the APA Fernão Dias, located in Serra da Mantiqueira, on the southern of Minas Gerais State, including the municipalities of Camanducaia, Gonçalves, Extrema and Itapeva. This region is situated between 1.000 and 2.068 meters of altitude, in a zone of Tropical seasonal semideciduous and Tropical rain forests. A total of 173 pteridophyte species were identified, distributed in 23 families and 55 genera. The most representative families were Polypodiaceae (21 spp.), Thelypteridaceae (18 spp.), Lomariopsidaceae (17 spp.), Pteridaceae and Aspleniaceae (13 spp. each), Blechnaceae and Hymenophyllaceae (12 spp. each), Grammitidaceae (10 spp.) and Lycopodiaceae (8 spp.). The genera with the highest numbers of species were Thelypteris and Elaphoglossum (17 spp. each), Asplenium (13 spp.), Blechnum (12 spp.), Trichomanes (7 spp.), Campyloneurum (6 spp.), Pecluma, Polypodium, Huperzia and Hymenophyllum (5 spp. each). Most of the species were terrestrial and has a Neotropical distribution. Athyrium filix-femina (L.) Roth. is the first record for the Minas Gerais State. This study has also identified the presence of a species threatened with extinction, Dicksonia sellowiana Hook., and of three species presumably threatened: Alsophila capensis (Sw.) Conant, Dryopteris patula (Sw.) Underw. and Botrychium virginianum (L.) Sw., included in the Red List of Threatened Species of the Flora of Minas Gerais State.
Key words:
Pteridophytes; floristic; Tropical seasonal semideciduous forest; Tropical rain forest