Amauropelta yabotiensis (Thelypteridaceae), a new species from Biosphere Yabotí Reserve (Misiones, Argentina) and its taxonomic relationships

YAÑEZ, A.; MARQUEZ, G.J.; PONCE, M. M.

ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS.

ACAD BRASILEIRA DE CIENCIAS

Lugar: Rio de Janeiro; Año: 2021

0001-3765

The Yabotí Biosphere Reserve (Prov. Misiones, Argentina) with 221,155 ha, representsone of the southernmost relicts of the Paranaense forest. Currently, a project is beingdeveloped in the area to inventory and describe the ferns and lycophytes. As a result ofthese studies, a new species of Amauropelta, A. yabotiensis, has been identified. Withinthis genus it belongs to the group of species with uncinate hairs and presents a uniquecombination of diagnostic features, including the type of pubescence on the rhizomescales, the shape of the blade and segments, type of venation, and leaf marginsappearance. Here the species is described and illustrated and its taxonomic affinities andgeographic distribution are analyzed. Additionally, a distribution map and a key areprovided to distinguish it from other Amauropelta species from Prov. Misiones.Likewise, as a result of the analysis, a nomenclatural update of other species of thegenus is carried out. With this new finding, we highlight the importance of the YabotíReserve as a reservoir of biodiversity in the region.