TYPE: Costa Rica. Limón: Cordillera de Talamanca, Atlantic slope, Valle de Silencio, area just N of Cerro Hoffman, 4.5 airline km W of the Costa Rica-Panamanian border, elev. 2350-2450 m, 9.08 82.58W, 9 Sep 1984, gently sloping valley dominated completely by oak forest, terrestrial, perianth brownish green on the back, white on the front, the upper petal with greenish brown veins, pollinia light yellow, G. Davidse, G. Herrera & M.H. Grayum 28651 (holotype, MO; illustration of type).