Monographs Details: Psychotria glabrescens Müll.Arg.
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Discussion:In this taxon there are two larger outer bracts with spreading tips and two interior bracts comprising the main involucre. From the related P. rosea (Benth.) M.-Arg. the present taxon differs in the densely pubescent peduncle, densely pubescent inner surface of the bracts and bracteoles, ciliolate-setose calyx lobes, glabrous outer surface of the corolla tube, irregularly distributed, knob-like, short, glandular squamellae of the calyx margin, subacute rather than long-attentuate apex of the outer involucral bracts, and shorter tomentellose indument of the involucral bracts.