Taxonomic study of Abuta (Menispermaceae) in the state of Acre, Brazil

Abstract A taxonomic treatment of Abuta in the Acre state is presented. Botanical specimens from national and foreign herbaria, as well as 17 new collections and the literature, were analyzed. The genus is represented by eight species: Abuta barbata, A. brevifolia, A. grandifolia, A. obovata, A. pahnii, A. rufescens, A. Sandwithiana and A. solimoesensis. Identification keys, descriptions, and illustrations of the species are presented, as well as data concerning geographical distribution and additional comments of the species.