Abstract
During the preparation of the monograph on Miconia for the Flora of Espírito Santo, Brazil, a new species was recognized and is described in this paper. Miconia valentinensis was found in Serra do Valentim, in Iúna Municipality. It has leaves with a slightly cordate base, 5+2 nerves (the inner pair strongly suprabasal, plus a basal median pair and a faint additional marginal pair), branches with strong longitudinal ridges, calyx early caducous, with the petals basally adhering to it, anthers dehiscing through a broad longitudinal slit, and with the ovary glabrous at the apex.