The genera Aciotis D.Don, Acisanthera P. Browne, Marcetia DC., Microlepis (DC.) Miq., Pterolepis (DC.) Miq., Siphanthera Pohl ex DC., and Tibouchina Aubl. represent the tribe Melastomeae in the state of Paraná. Except for Tibouchina, each has only one species occurring in the state, respectively: Aciotis paludosa (Mart. ex DC.) Triana, Acisanthera variabilis (DC.) Triana, Marcetia taxifolia (A.St.-Hil.) DC., Microlepis oleifolia (DC.) Triana, Pterolepis glomerata (Rottb.) Miq. and Siphanthera cordata Pohl ex DC. Microlepis and Siphanthera are cited for the first time in Paraná and in southern Brazil. In this article we present a taxonomic treatment for the species of tribe Melastomeae in the state, except for those of Tibouchina, with an illustrated identification key, descriptions, information on distribution and taxonomy, and collectors' lists.
Melastomataceae; Melastomeae; taxonomy
