Aspleniaceae (Polypodiopsida) in the state of Mato Grosso, Brazil

Abstract

We present a floristic-taxonomic survey of the species of Aspleniaceae in Mato Grosso as part of a series on the flora of lycophytes and ferns in this state. The study is based on an analysis of national and foreign herbaria specimens. In the state of Mato Grosso, there are two genera and 22 species of Aspleniaceae: Asplenium abscissum, A. angustum, A. auritum, A. cirrhatum, A. claussenii, A. cristatum, A. dimidiatum, A. flabellulatum, A. formosum, A. hallii, A. inaequilaterale, A. juglandifolium, A. otites, A. poloense, A. praemorsum, A. pumilum, A. resiliens, A. salicifolium, A. serra, A. serratum, A. stuebelianum, and Hymenasplenium delitescens. This corresponds to 27,5% of the Aspleniaceae species reported for Brazil. The species predominantly occur in forest environments. Dichotomous keys to the genera and species, descriptions, diagnostic illustrations, and notes on the geographic distribution, habitat, and morphological affinities between species are provided.