Monographs Details: Maxillaria mapiriensis (Kraenzl.) L.O.Williams
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: El Dorado-Brazil road, "Camino de penetracion," 24 km south of "Camp 88 km," G. C. K. Dunsterville 413; lower southeastern slopes of Carrao-tepui, 1675-1950 m alt., epiphyte on dead mossy log. sepals pale greenish yellow, petals porrect, maroon-purple or wine-purple-red, lip pale yellow with dull lavender dots through central portion, December 5-6, 1944. J. A. Steyermark 60873 (type of M . condensata); Cerro Guaiquinima, Rio Paragua. 1800 m alt., in cumbre at Summit Camp, occasional epiphyte, "'outer perianth greenish-yellow, lip white, red-dotted, lateral segments red," December 24, 1951, B. Maguire 32730; Sarven-tepui, 1500-1750 m alt., between Camps 4 and 5, in cloud forest, epiphyte on low tree branch, sepals greenish yellow, petals maroon, lip yellowish with faint brown speckling, Januar) 10, 1953, J. J. Wurdack 34075; Chimantá Massif, 1300 m alt., northwestern part of Abacapa-tepui, on forested slopes adjacent to quebrada, in vicinity of Camp 3. epiphite on no. 75188, leaves coriaceous, spreading, deep green above and dull beneath, April 20, 1953, Steyermark 75189; Chimanta Massif, western slopes of Chimanta-tepui (Torono-tepui), 1700 m alt., among mossy boulders on denseh forested slopes along trail from Base Camp to Bluff Camp, leaves coriaceous, deep green above and dull beneath, sepals porrect, pale yellowish green, petals dull maroon, lip yellow spotted with orange-madder, white on margins, column pale green with white at apex. May 30-31, 1953, Steyermark 75605; Chimantd Massif, on southeast-facing upper shoulder of Apacara-tepui. on rocky plateau below summit. 2000-2100 m alt., epiphyte on rock outcrops, leaves coriaceous, maroon above and dull green beneath, sepals greenish yellow, 8 mm long and 3 mm wide, petals maroon, 7.5 mm long and 1.5 mm wide, lip pale yellow spotted with copper-color, white on margins, 8 mm long, 4 mm wide, June 20. 1953. Steyermark 75779; Chimanta Massif. Central Section, 1925-1940 m alt., between Middle and Upper Falls of Rio Tirica. bordering zanjon between rocky ledges above Summit Camp, leaves spreading ascending, coriaceous. yellow-green with purple margins, leaf-sheath purplish, sepals yellow-green, the upper spreading upward and foiAvard, the laterals spreading-recurved, petals maroon, porrect lip descending, rich yellow with margins pale cream-colored, February 4, 1955. J. A. Steyermark & J. J. Wurdack 388; Auvan-teptii, Region de "El Oso." Pannier & Schieabe 1818; same locality, cumbre de la parte sureste (division occidental del cerro); entre "Oso Woods Camp" vel Rio Churún, atravesando un macizo piano rocoso de arenisca, 1690-2100 m alt., epiphyte on shaded moss) boulder in dwarf forest near Rio Chunin. leaves coriaceous, olive green, sepals and petals pale olive green, lip pale green with whitish border, May 1, 1964, Steyermark 93213; same locality, cumbre de la parte norte de la seccion sur (division occidental del cerro) : a lo largo del Rio Churiin al piede "Second Wall" de arenisca, 6-10 kms hacia el noreste del campamento norte, 1600 m alt., epiphyte on tree, sepals and petals tawny-yellow, lip maroon. May 13, 1964, Steyermark 93836. Amazonas: Rio Ventuari, Rio Pani, Caño Asisa, in cumbre, 2000 m alt., flowers red, February 11, 1949, K. D. Phelps & C. B. Hitchcock 488. COLOMBIA and BOLIVIA (type of Ornithidium mapiriense).

Discussion:

Ornithidium mapiriense Kranzl., Fedde Report. 25: 23. 1928.

Maxillaria condensata C. Schweinf., Fieldiana Bot. 28: 194, fig. 38. 1951.

Distribution:Venezuela South America| Colombia South America| Bolivia South America|