Guapurium caipirinha (Myrtaceae), a new species of jaboticaba from Brazil with pentamerous flowers

Guapurium caipirinha (Myrtaceae) is a new species of jaboticaba from Minas Gerais state, Southeastern Brazil, which morphologically resembles Plinia oblongata, from which it differs in being a shrub or treelet 1–4 m height, with exclusively pentamerous flowers, and membranous epicarp with very sweet pulp. A detailed morphological description, etymology and vernacular names, information on history, phenology, conservation, habitat and taxonomic notes, a distribution map, and images of living plants and the type specimen are provided.