Monographs Details: Polystachya foliosa (Hook.) Rchb.f.
Authority: Schweinfurth, Charles. 1967. Orchidaceae of the Guayana Highland. Mem. New York Bot. Gard. 14: 69-214.
Description:Distribution and Ecology - BRITISH GUIANA. "Ite bog 1 mile East of Onoro mouth, 4' low down Epiphytic on G 395. Small epiphyte with linear 6" leaves and spikes of green inferior fruit," 200 m ak., '8/10/52' ", Field no. G 398, Record no. 7414. VENEZUELA. Bolivar: El Pescado, Medio Caura, 90 m alt., L. Williams 11311; Canaima, G. C. K. Dunsterville 148, 312 (as P caracasana); Gran Sabana, between Divina Pastora on Rio Kukendn and Sta. Elena, south of Mt. Roraima, on wooded margin of Uairén River, 915-1005 m alt., on tree, leaves erect, rich green on both sides, rachis and pedicellate ovary light green, flowers deep yellow, October 3, 1944, J. A. Steyermark 59289; Cerro Guaiquinima, Rio Pardgua, Raudal Ouraima, in dry riverine woodland, 175 m alt., infrequent epiphyte, flowers yellowish, January 16-19, 1952, B. Maguire 33148; 105 km from El Dorado near Sta. Elena, E. Foldats 2864. Amazonas: bank of the Orinoco 10 km to the south of Pto. Ayacucho, E. Foldats 3572; Rio Cuao, Rio Orinoco, in Cafio Cuao, 125 m alt., uncommon epiphyte, flowers yellow, December 30, 1948, B. Maguire & L. Politi 28029; along Rio Guainia between Comunidad and Santa Rita, 120 m alt., epiphyte, flowers orange-yellow, July 8, 1959, J. J. Wurdack & L. S. Adderley 43353; along Rio Orinoco just below the mouth of Caño Yapacana, 125 m alt., locally frequent epiphyte, flowers pale orange, July 30, 1959, Wurdack & Adderley 43680; along right bank of Rio Orinoco just below the mouth of Rio Atabapo, 125 m alt., frequent epiphyte, sepals pale orange, petals cream-color, August 6, 1959, Wurdack & Adderley 43779. An extremely polymorphic plant extending from Middle America and the west Indies through VENEZUELA and BRITISH GUIANA (type of Stelis foliosa) to PERU and BRAZIL.


Stelis foliosa Lindl., Ann. Nat. Hist. 2: 330, t. 17. 1839.

Distribution:Guyana South America| Venezuela South America| Peru South America| Brazil South America|