Monographs Details: Sipanea glabrata Wernham
Authority: Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
Family:Rubiaceae
Scientific Name:Sipanea glabrata Wernham
Description:Distribution and Ecology - Known only from the type locality.

Discussion:

Type. Santa Anna da Chapada, Estado Matto Grosso, Brazil, 28 June 1902, A. Robert 333.

I have examined the holotype and paratype collections deposited in the British Museum (BM). The species is closely allied to S. hispida. Until additional collections are available to prove otherwise, I am retaining the species as distinct.