Monographs Details: Catasetum discolor 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. Horroobea Savanna, "terrestrial, bulb 6-9 in. long," April 1887, G. S. Jenman 3805; Quimatta, Rupununi River, terrestrial on rock, "Two varieties, one with green, the other brownish flowers," August 1890, Jenman 6167; Mazaruni Station, in sandy burned second growth, terrestrial, "Sep. and upper pet. pale yellowish-green. Labellum yellowish-green, fringes tinged with pale brownish mauve. Ditto inside of sack with horizontal zones and apex same colour," September 16, 1937, N. Y. Sandwith 1161 (this collection is male); Pakaraima Mts., Kamarang River-Wenamu Trail, Samwarakna-tipú (Holi-tipú), 1100 m alt., occasional terrestrial in savanna, "fls. staminate, greenish-cream," November 9, 1951, B. Maguire & D. B. Fanshawe 32478; same locality and altitude, "fls. yellowish-orange; lip fimbriate, purplish-tipped," November 10, 1951, Maguire ir Fanshawe 32512; same locality and altitude, "fls. green at first, yellowgreen when mature," November 10, 1951, Maguire ir Fanshawe 32513 (this collection is female). COLOMBIA. Vaupes, Cerro de Yapobodd, at headwaters of Rfo Kuduyarf, about 184 m alt., in savanna among scrub, August 15, 1960, L. A. Garay 105. SURINAM. Sanderij II, frequent in grass savanna, June 3, 1944, B. Maguire ir G. Stahel 23698, 23699; Tafelberg, common in open rock savannas, B. Maguire 26210. VENEZUELA. Bolivar: Mt. Roraima, upper slopes, McConnell & Quelch 6; Auydn-tepui, Campamento Guayana, terrestrial in wet savanna, flowers yellow, "7.9.1958," Pannier ir Schwabe 1748; Salto Hacha, near Angel Falls, G. C. K. Dunsterville 173 (as var. vinosum) ; Canaima ex Steinheil, Dunsterville 173A; Sororopan-tepui, crest of cerro between east and west ends, 2255 m alt., terrestrial on rocks, J. A. Steyermark 60116; at base of Sororopdn-tepui, west of La Laja, 1220 m alt., along Rio Karuai, terrestrial over rocky surfaces in savanna, Steyermark 60749; vecindades de K m 125 al Sur de El Dorado, sobre arenisca, 1155 m alt., common terrestrial on open ground, inflorescence erect, lateral sepals dull greenish salmon within and maroon without, petals magenta, lip deep maroon within and paler magenta and tawny without, December 25, 1963, Steyermark & Dunsterville 92195; a lo largo del camino al Sur de El Dorado, vecindades del Km 125, 1155 m alt., terrestrial, sepals yellow-green, lip dull orange-yellow, maroon-orange within, December 21, 1963-January 13, 1964, Steyermark ir Dunsterville 92963. Amazonas: along Rio Orinoco, below mouth of Rio Sanariapo, 100 m alt., among rock outcrops, terrestrial, leaves grass-green, sepals and lip pale green, column cream-yellow, September 8, 1944, Steyermark 58440; along the Alto Orinoco, Hort. Linden.; Alto Rio Orinoco on Esmeralda Ridge, 200 m alt., terrestrial, "Tepals cream; lip pale orange," September 20, 1957, B. Maguire, J. J. Wurdack & W M. Keith 41557; Rios Pacimoni-Yatua, Casiquiare, on Laja Catipan, Rfo Yatua, 100-140 m alt., terrestrial, "Tepals cream; lip pale orange-yellow; column with subapical maroon spot," September 26, 1957, B. Maguire, J. J. Wurdack ir C. K. Maguire 41591; same locality, 120-200 m alt., frequent terrestrial, "Tepals greenish; lip pale maroon," July 13, 1959, J. J. Wurdack ir L. S. Adderley 43436; same locality and altitude, "Fls. greenish yellow, the fringe basally yellowish and apically purple," 120-200 m alt., July 13, 1959, Wurdack ir Adderley 43437; northeast of Esmeralda, at southeastern base of Cerro Duida, 215 m alt., epijjhyte in leaf-bases of Mauritia palm in Sabana Grande, J. A. Steyermark 58403; along Rio Orinoco, below mouth of Rio Sanariapo, 100 m alt., terrestrial among rock outcrops, Steyermark 58440; on Laja Cabezon, margin of Rio Cabezon, near its mouth where it joins Rio Atabapo, E. Foldats 3884; Rio Churiin, Dunsterville 809. A variable species extending throughout northern South America (BRITISH GUIANA, type of Monachanthus discolor) to BRAZIL.

Discussion:

Monachanthus discolor Lindl., Bot. Reg. 20: t. 1735. 1835.

Distribution:Guyana South America| Colombia South America| Suriname South America| Venezuela South America| Brazil South America|