A família Parmeliaceae (fungos liquenizados) nos barrancos e peraus da encosta da Serra Geral, Vale do Rio Pardo, Rio Grande do Sul, Brasil.

Abstract

This study is a survey of the Parmeliaceae species (lichenized Ascomycota) occurring at the roadsides and cliffs on the slopes of the Serra Geral, Vale do Rio Pardo, located at the central region of Rio Grande do Sul, Brasil. Sixty one sampled species in ten genera were found: Bulbothrix (1), Canomaculina (7), Canoparmelia (3), Hypotrachyna (4), Myelochroa (2), Parmelinopsis (2), Parmotrema (25), Punctelia (8), Relicina (1) e Rimelia (8). Seven species are new to Science: Bulbothrix viatica Spielmann & Marcelli, Parmotrema austromaculatum Spielmann & Marcelli, P. marginhiatum Marcelli & Spielmann, P. pereirae Spielmann & Marcelli, P. rhizinatum Marcelli & Spielmann, Punctelia aurantiaca Spielmann & Marcelli e Rimelia lactea Spielmann & Marcelli. Furthermore, Rimelia clavulifera (Räsänen) Kurok. is a new record to the American continent, Parmotrema allardii (Hale) Spielmann, Canêz & Marcelli is new to Brazil and P. bangii (Vainio) Hale e P. mordenii (Hale) Hale are added to the Rio Grande do Sul lichenized mycota. Keys, descriptions, comments and illustrations for all species are presented.