Synopsis of the ferns and lycophytes from the Amazônia National Park, Pará, Brazil

Abstract

We present a checklist for the ferns and lycophytes from the Amazônia National Park, Pará, Brazil. It is one of the largest National Parks in Brazil, comprising most of the vegetation types that are found in the Amazonian lowlands. This study is based on field trips carried out between 2015 and 2016. We recorded 83 species of ferns and lycophytes. All of them have been found previously in the Amazon, and one is a new occurrence for the state of Pará (Selaginella vcabrerensis). The richest families are Pteridaceae (19 spp.), Polypodiaceae (12 spp.), Hymenophyllaceae (8 spp.), Aspleniaceae (5 spp.), and Selaginellaceae (6 spp.). The genus Adiantum is the richest with 13 species, followed by Microgramma and Selaginella (6 spp. each), and Asplenium and Trichomanes (5 spp. each). Most of the species occurring on terra-firme forests as terrestrial. We present identification keys to the families, genera, and species, list of specimens examined, comments and illustrations.

Key words:
Amazonia; biodiversity; pteridophytes; taxonomy; lowlands