This study aimed to identify genera and species of Rubiaceae occurring in the Parque Estadual das Várzeas do Rio Ivinhema, located in the Paraná river basin, between the coordinates 22K 0226719 UTM 7463768. Samples were collected monthly from September 2003 to October 2006. We found 45 species distributed in 24 genera. The most representative genera are Psychotria (10 species), Palicourea (4), and Borreria (3), followed by Alibertia, Chomelia, Coccocypselum, Coussarea,Diodela, Galianthe and Guettarda (2). Most of the species have a wide geographical distribution, however, for some species, such as Borreria flavovirens, Chomelia brasiliana, Psychotria anceps and Psychotria brachybotrya, this is the first record for Mato Grosso do Sul State.
floristic; Mato Grosso do Sul; new occurrences; taxonomy
