Habenaria roraimensis Rolfe
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Authority
Schweinfurth, Charles. 1967. Orchidaceae of the Guayana Highland. Mem. New York Bot. Gard. 14: 69-214.
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Family
Orchidaceae
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Scientific Name
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Description
Distribution and Ecology - VENEZUELA. Bolivar: Mt. Roraima, on summit, 2600 m alt., McConnell ir Quelch 698 (type) ; same locality, November 24, 1927, G. H. H. Tate 409; Mt. Roraima on northwest portion north and northwest of Summit Camp, among plants at base of slopes of morros, 2620-2740 m alt., leaves erect, firmly membranaceous, deep green, sepals olive green, petals and lip greenish yellow, spur olive green, September 27, 1944, J. A. Steyermark 58854; Auyan-tepui, in the basin, 2300 m alt., April 1956, V. Vareschi & E. Foldats 4860; same locality, Cumbre de la parte sureste del brazo noroeste (divisicm occidental del cerro): faldas sobre piedras igneas, vecindad del "Rio Lomita Camp", 1800 m alt., terrestrial on moist granitic slopes near stream, flowers green. May 7, 1964, Steyermark 93566; cumbre de la parte sur, meseta de piedra arenisca, entre "Oso Woods Camp" y "Libertador", 2050-2300 m alt., terrestrial, flowers deep green, May 15, 1964, Steyermark 93937; Ptari-tepui, 2200 m alt., J. A. Steyermark 59771; Chimanta Massif, east central portion of summit of Apacara-tepui, common in large swamp and on rocky hummocks surrounding swamp, 2450-2500 m alt., leaves erect, firmly membranaceous, grass-green, paler beneath with reticulation prominent, sepals olive green with pale margins, petals, lip and spur yellow-green, June 21-22, 1953, Steyermark 75944; Chimanta Massif, Central Section, along stream margin in scrub forest near Summit Camp, flowers yellow-green, 1925 m alt., February 2, 1955, J. A. Steyermark & J. J. Wurdack 334. Amazonas: Cerro de la Neblina, Rio Yatua, along escarpment west of Cumbre Camp, 1700-1800 m alt., flowers yellow-green, January 6, 1954, B. Maguire, J. J. Wurdack & G. S. Bunting 37090; same locality, occasional in savanna 5 km west of Cumbre Camp, 1900 m alt., flowers greenish yellow, January 6, 1954, Maguire, Wurdack & Bunting 37127; same locality, occasional in west escarpment savanna, 2 km north of Cumbre Camp, 1800 m alt., flowers yellow-green, January 12, 1954, Maguire, Wurdack & Bunting 37239; same locality, occasional in west escarpment savanna, 4-8 km southwest of Cumbre Camp, 1850-1900 m alt., flowers greenish white, January 15, 1954, Maguire, Wurdack & Bunting 37306; same locality, infrequent in west savannas 4-6 km southwest of Cumbre Camp, 2000-2100 m alt., flowers green, November 21, 1957, B. Maguire, J. J. Wurdack & C. K. Maguire 42162. Frontier between Territory of Rio Branco, Brazil, and State of Bolivar, Venezuela, infrequent on summit of Serra do Sol, 2300 m alt., flowers green, December 28, 1954, B. & C. K. Maguire 40393.
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Distribution
VENEZUELA. Bolivar: Mt. Roraima, on summit, 2600 m alt., McConnell ir Quelch 698 (type) ; same locality, November 24, 1927, G. H. H. Tate 409; Mt. Roraima on northwest portion north and northwest of Summit Camp, among plants at base of slopes of morros, 2620-2740 m alt., leaves erect, firmly membranaceous, deep green, sepals olive green, petals and lip greenish yellow, spur olive green, September 27, 1944, J. A. Steyermark 58854; Auyan-tepui, in the basin, 2300 m alt., April 1956, V. Vareschi &
Venezuela South America| Brazil South America|