Monographs Details: Pleurothallis sclerophylla Lindl.
Authority: Schweinfurth, Charles. 1967. Orchidaceae of the Guayana Highland. Mem. New York Bot. Gard. 14: 69-214.
Family:Orchidaceae
Description:Distribution and Ecology - BRITISH GUIANA. Kaieteur Plateau, rare epiphyte on small tree, spikes erect, flowers pale yellow-green, April 30, 1944, B. Maguire & D. B. Fanshawe 23102. VENEZUELA. Bolivar: Mt. Roraima, upper slopes, Im Thurn 280; Mt. Roraima, 2100-2620 m alt., on southwest-facing sandstone ledge, terrestrial, leaves subcoriaceous, rich green above and paler beneath, stem and bracts pale green, flower buds greenish white, September 28, 1944, J. A. Steyermark 58922; Ptaritepui, lower portion of Quebrada O-paru-md, tributary of Rio Pacairao, 915-1065 m alt., below Santa Teresita de Kavanayen, leaves coriaceous, epiphyte on Hirtella macrophylla, November 25, 1944, Steyermark 60564 (flowers poor, so determination only probable); Kavanayen, in savannas. May 30, 1946, T. Lasser 1909; Chimantd Massif, northwestern part of Abdcapa-tepui, 1300 m alt., on forested slopes adjacent to quebrada, vicinity of Camp 3, epiphyte on tree, leaves coriaceous, rich pale green above and pale beneath, flowers pale gieen with apically spreading segments, April 20, 1953, Steyermark 75176; Auyan-tepui, 1100 m alt., Teraza de Guayaracas, abundant on trees along river, flowers yellow, 1956, E. Foldats 2644; near Santa Elena, 105-118 km from El Dorado, rather abundant epiphyte in moist macrothermal woods, flowers yellow, "3.1.1957," E. Foldats 2836; a lo largo del camino al Sur de El Dorado, vecindades del Km. 120, 800 m alt., epiphyte, leaves erect and rigid-coriaceous, rich green, 1.5 cm wide, flowers orange-yellow with base pale green, December 21, 1963-January 13, 1964, Steyermark & Dunsterville 92176; bosque alto humedo montanoso, entre la base de la ladera principal escarpada de arenisca v el salto en el Rio Venamo, 1220-1275 m alt., epiphyte at base of tree, flower pale yellow, January 6-7, 1964, Steyermark & Dunsterville 92814. BRAZIL (type of both concepts), COLOMBIA, ECUADOR and PERU.

Discussion:

Pleurothallis stenopetala Lodd. ex Lindl., Bot. Reg. 24: Misc. 95, no. 182. 1838.

Distribution:Guyana South America| Venezuela South America| Brazil South America| Colombia South America| Ecuador South America| Peru South America|