Type: Dudley 13087 (holotype, NA), epiphytic in dense and damp cloud forest half way between Camp 3 (Laguna) and Camp 4 (Peligroso), southwestern slope of the Rio LlullaPichis watershed, on the ascent of Cerro del Sira, 9° 26' S,74 ° 45' W, 1400 m alt, Huanuco, Peru, 22 Jul 1969.