A taxonomic study of the Araceae species found in Rio Doce State Park is presented, with dichotomous keys, botanical descriptions and illustrations. Monthly trips took place from May 1999 to April 2000 to collect botanical material. Collections were made along 11 trails in the central and southern regions of the park. Thirteen species belonging to eight genera were recorded; Philodendron was the most representative with three species. Four of the species found at Park are new records for Minas Gerais: Asterostigma concinnum Schott, Heteropsis flexuosa (Kunth) G.S. Bunting, Philodendron speciosum Schott and Philodendron vargealtense Sakuragui.
Araceae; taxonomy; Atlantic rain forest; Rio Doce State Park
