Thelypteridaceae Pic.Serm. is represented in the state of Mato Grosso, by the genera Macrothelypteris and Thelypteris, the latter represented by five subgenera Amauropelta (Kunze) A.R. Smith, Cyclosorus (Link) C.V. Morton, Goniopteris (C.Presl), Meniscium (Schreb) C.F.Reed and Steiropteris Iwats. This study discusses the representatives of the subgenera Goniopteris (C.Presl) Duek (six species, including one probable occurrance in the state) and Meniscium (Schreb.) C.F.Reed (six species). Identification keys, descriptions, references to illustrations with diagnostic characters are presented together with comments on geographic distribution.
Central-western Brazil; diversity; ferns; floristics; taxonomy
