Psychotria glabrescens Müll.Arg.
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Authority
Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
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Family
Rubiaceae
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Scientific Name
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Type
Type. Piauhy, Prov. Ceará, Brazil, 1836-41, George Gardner 1962.
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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.