Cyrtochilum pastasae (Rchb. f.) Kraenzl. 1917 SECTION Eucyrtochilum Kranzlin

Photo By Ecuagenera Orchid Website


Photo By Henry Oakeley

Plant in situ Ecuador

Photo by Lourens Grobler


Common Name The Pastaza Cyrtochilum [An Ecuadorian Province in the east]

Flower Size 2" [5 cm]

Found in southern Colombia, Ecuador and Peru in very wet montane forests at elevations of 1200 to 3200 meters as a medium to large sized, cool to cold growing epiphyte or terrestrial on steep slopes with an elongate, creeping rhizome carrying ovate-elongate pseudobulbs that are enveloped basally by several distichous, foliaceous sheaths and carrying 2 apical, ligulate, coriaceous leaves that blooms in the fall and winter on a basal, arising from the leaf axils, elongate, viney, scandent, to 10' [to 300 cm.] long, peduncel to 3'4" [100 cm] long, paniculate, heavily branched, each branch to 32" [80 cm] long, many rebranching each branch 7 to 8 flowered, many flowered inflorescence arising on a mature pseudobulb and carrying showy, very full, cup shaped flowers.

Synonyms *Oncidium pastasae Rchb. f. 1877

References cyrtumbonatum.htm Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1917 drawing good; Icones Planetarum Tropicarum plate 479 Dodson 1982 as Oncidium pastasae drawing fide; Orchid Digest Vol 60 No 2 1996 photo fide; AOS Bulletin Vol 67 No 1 1998 photo fide; Lindleyana Vol 16 No 2 2001; The Pictoral Encyclopedia of Oncidium Zelenko 2002 drawing fide; Native Ecuadorian Orchids Vol 4 Dodson 2003 as Oncidium pastasae drawing/photo fide; Orchid Species Culture: Oncidium/Odontoglossum alliance Bakers 2006; Orquideologia Vol 25 #2 2008; Orchid Species of Peru Zelenko Bermudez 2009 photo fide; Orquideologia Vol 26 #2 2009 photo fide; Flora of Ecuador No 87 225[3] Orchidaceae Dodson & Luer 2010 drawing fide; Orchid Digest Vol 75 #4 2011 Photo fide; Las Orquideas del Peru Izerskyy & Bezverhov 2011 photo not = C volubile; Orquideas de Zamora Chinchipe Tomo 1 Epidendroideae I Jimenenz 2014 photo fide; AOS Bulletin Vol 85 #1 2016 photo ok; AOS Bulletin Vol 88 # 1 2019 photo fide; Orchids, A Colombian Treasure Vol 1 Ortiz & Uribe 2014 photo fide