This work consists of a floristic survey and a taxonomical study of the Rubiaceae at the Mata do Paraíso Forest Reserve in Viçosa, Minas Gerais State, Brazil. Fourteen genera comprising thirty species were found in the Reserve. From this total, nineteen were shrubs and eleven were herbs. The genera with larger species numbers were Psychotria (10), Borreria (four), Coccocypselum (three), and Coussarea and Palicourea (two). Bathysa, Chiococca, Coutarea, Diodia, Faramea, Galium, Mitracarpus, Richardia and Rudgea presented one species. Analytic key, descriptions, illustrations, taxonomical comments and geographic distribution of each species were also presented in this paper.
Rubiaceae; taxonomy; floristic; semideciduous forest
