Monographs Details: Retiniphyllum pilosum (Spruce ex Benth.) Müll.Arg.
Authority: Maguire, Bassett. 1965. The Botany of the Guayana Highland. Mem. New York Bot. Gard. 12 (3): 1-285.
Description:Distribution and Ecology - Distribution. A small white- to greenish-white-flowered shrub bordering savannas or at the edge of the forest in drainage of Rio Negro and Rio Guainia of Brazil and Venezuela. VENEZUELA. Amazonas: Forest edge at Yavita, Rio Atabapo, Maguire 29301; edge of sabanita 1 km east of Maroa, Rio Guainia, Wurdack cO Adderley 43270; same locality, Maguire, Wurdack ds Keith 41742; rastrojos, Maroa, Williams 14432. BRAZIL. Amazonas: Jucabi (at mouth of Rio Cucicuriari) and vicinity, Rio Negro, Schultes & Lopez 9633; prope Sao Gabriel da Cachoeira, Spruce 2243 (holotype).

Discussion:Commianthus pilosus Spruce ex Benth. in Hook. Jour. Bot. 5: 233. 1853.
Distribution:Venezuela South America| Brazil South America|