Monographs Details: Bifrenaria venezuelana C.Schweinf.
Authority: Schweinfurth, Charles. 1967. Orchidaceae of the Guayana Highland. Mem. New York Bot. Gard. 14: 69-214.
Family:Orchidaceae
Description:Distribution and Ecology - VENEZUELA. Bolivar: Chimanta-tepui (Torono-tepui), southwestern-facing forested slopes between Base Camp and steep slopes above the valley of Rio Tirica, 1000-1400 m alt., epiphyte creeping along tree trunk, pseudobulb 4-angled, magenta, leaves firmly membranaceous-chartaceous, rich green above and paler beneath, pedicels dull purple, sepals and petals dull magenta with a thin pale green margin, lateral sepals saccate at base, darker brown-magenta, lip winepurple in front pale cream-white with purple blotches. May 15, 1953, J. A. Steyermark 75375 (type); Sierra Ichún, above waterfall on bushy slopes to the north of Salto Marfa Espuma (Salto Ichiin), along Rio Ichún (tributary of Rio Pardgua), lat. 4º46', long. 63° 18', 625-725 m alt., epiphyte, pseudobulb 4-ridged, fleshy, purple-brown, leaves subcoriaceous, plaited, deep green above, December 27, 1961, Steyermark 90291 (sterile). Amazonas: Cerro Duida, upper slopes of Culebra Peak, 1600 m alt., occasional epiphyte on rocks, flowers purple-brown, lip deep purple with pale spotted margin, April 22-24, 1949, B. Maguire & B. Maguire Jr. 29102.

Distribution:Venezuela South America|