A New Species of the Brazilian Endemic Genus Acritopappus (Compositae, Eupatorieae) from Minas Gerais

A new species of the Brazilian endemic genus Acritopappus from the Serra do Cabral, in Minas Gerais state, is described. The new species, Acritopappus pereirae , is similar to A. confertus, the most widely distributed species in the genus, but differs in that the latter has conduplicate, chartaceous, glabrous to glabrescent, viscid leaves with entire margins, and an aristate pappus. The new species is illustrated, the affinities between the morphologically related species and A. pereirae are discussed and a key to the species from Minas Gerais is provided.