No sheet of the type number, Ducke 8089, was found by curators at the larger European herbaria (G, K, L, M, P, W), nor in the two Rio de Janeiro collections (RRB). Along the miscellaneous sheets at the Museo Goeldi is a sheet of this collection with "Miconia Duckei Hub. n. sp." on the label; the epithet was penciled out. I believe this sheet to be the holotype of M. arirambae, not reannotated by Huber after he discovered Cogniaux' prior use of the epithet. The species seems to be fairly common in Venezuelan Guayana, with specimens from Bolivar (Aristeguieta 2219, Steyermark 59204, Wurdack 34.373) and Amazonas (Maguire & Maguire 35058, Cowan & Wurdack 31490-A), as well as from British Guiana (Maguire & Fanshawe 32182) and the lower Trombetas and Rio Maro in Brazil (Ducke 10957, Pires & Silva 4387). However, I can find no differences in minute details from the isotype (NY) of M. albo-rufescens Naud. Unfortunately the sheet of Claussen 154 has only young fruit and no flowers. Almost certainly, a comparison of flowering material from Minas Gerais with the excellent Guayana collections will establish this synonymy.