The species of Orchidaceae of epiphytic habit occurring in a Decidual Seasonal Forest in the area called Centro Tabor, 29 ° 37 '30' 'S and 53 ° 47' 30 '' W, on the southern slope of Serra Geral, Itaara municipality, Rio Grande do Sul. It was verified the occurrence of 18 species distributed in nine genera: Bulbophyllum, Capanemia, Cyrtopodium, Gomesa, Isochilus, Lophiaris, Oncidium, Pleurothallis and Sophronitis .
