Monographs Details: Sobralia stenophylla Lindl.
Authority: Schweinfurth, Charles. 1967. Orchidaceae of the Guayana Highland. Mem. New York Bot. Gard. 14: 69-214.
Description:Distribution and Ecology - BRITISH GUIANA. Near Demerara, R. Schomburgk s.n. (type). VENEZUELA. Bolivar: Roraima region, headwaters of the Caroni, Appun 1076, Ule s.n.; Kotinga River, McConnell 6- Quelch 147; Ireng Valley, McConnell & Quelch 329; Spelenicola, along the Arapoa River, Im Thurn 19; Mt. Roraima, November-December 1931, N. J. Abbensetts 54; Roraima district, near Arabupu, about 1200 m alt., on bank of Arabupu River, terrestrial about 2 ft high, flowers pale purple with yellow anthers, November 18, 1938, A. S. Pinkus 54; Kavanayen, borders of Quebrada de Mandapai, terrestrial with beautiful crimson flowers, May 28, 1946, T. Lasser 1784; Rio Caroni, pools and rocky shores of the Euto-uarima Falls, 720 m alt., flowers purple, October 8, 1946, F. Cardona 1759; region of Uriman, Caño Auacapa, a tributary of the Apacara, 400-500 m alt., terrestrial in streamside woodland that is periodically inundated, flowers crimson, August 16, 1954, Bernardi 1437; Gran Sabana, between Kun and waterfall at Rue-merii (tributary of Rio Kukendn), south of Mt. Roraima, 1065 m alt., along streamlet, stems erect, leaves erect-ascending, stiff, subcoriaceous, sepals and petals rose-orchid, lip deep rose, October 2, 1944, J. A. Steyermark 59138; Salto de Iwaracarii-merii, at western end of Sororopdn-tepui, 1615 m alt., on rocks at base of waterfall, in clumps, leaves deep green above and dull green beneath, sepals and petals deep orchidrose, lip dark rose-orchid or orchid-violet with cream-white crest and only the crisped margins deep orchid-rose, November 15, 194 1, Steyermark 60221; between Santa Teresta de Kavanayen and base of Ptari-tepui, 1220 m alt., by fast water in savanna and shrubby growth bordering forest of Rio Karuai, same color as 60221, November 18, 1944, Steyermark 60338; Chimanta Massif, rapids of Rio Apacara over igneous rock, 14 mile downstream from the mouth of Rio Abacapa, western side of Apdcara-tepui, 415 m alt., common along fast water below rapids, March 29, 1953, Steyermark 74694; on bank, growing low over Rio Guayaraca (near Auyan-tepui), 857 m alt., also Kavanayen, (ten Houten). G. C. K. Dunsterville 776; vecindades de Km. 125 al Sur de El Dorado, by fast water along banks of headwaters of Rio Venamo, 1155 m alt., flower orchid-colored, lip purple with yellow in center, December 25, 1963, Steyermark & Dunsterville 92192; bosque muscoso humedo montaiioso, a lo largo del afluente derecho (Oeste) subiendo el Rio Venamo, descendiendo el rio desde el campamento cerca de la uni6n con el afluente Este, 950-1150 m alt., common along fast stream, December 29-30, 1963, Steyermark & Dunsterville 92407.
Distribution:Guyana South America
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