Monographs Details: Rhodognaphalopsis coriacea subsp. orinocensis A.Robyns
Authority: Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
Family:Malvaceae
Description:Species Description - A subsp coriacea (cf. A. Robyns, Bull. Jard. Bot. Bruxelles 33: 289. 1963) arboris altitudine (3-7 m alta) , pedicello longiore et- angustiore 1.8-2.3 cm longo et circa 1-1.5 mm crasso pilisque squamosis brevibus fusco-rubescentibus obtecto, calyce extus pilis squamosis brevibus obtecto lepidotove, petalis leviter angustiori-bus et circa 6-7 mm latis. tubo stamineo longiore circa 2 cm longo et breviter albido-stellato-villoso phalangibusque tantum circa 5.5 cm longis sat recedit.

Distribution and Ecology - VENEZUELA. Amazonas: bushy tree to 3 m high, leaves 3-foliolate, buds purple-brown, edge of savanna, along trail to Y apacana gold mine, savanna and woodland, NW base of Cerro Y'apacana, alt 150 m, Alto Rio Orinoco, Maguire A Wurdack 54518 (MO, NY)

Discussion:

Type. Tree 3-7 m high, flowers white, locally frequent on savanna edge.Yapacana savannas, NYY base of Cerro Yapacana, alt 125 m, Alto Rio Orinoco, Terr. Amazonas, Yenezuela, 16 Sept 1957, B. Maguire, J. J. Wurdack & Wm. M. Keith 41497 (holotype MO, isotype NY).