Cyrtochilum pastasae (Rchb. f.) Kraenzl. 1917 SECTION Eucyrtochilum Kranzlin
Photo By © Ecuagenera Orchid Website
Photo By © Henry Oakeley
Photo by Lourens Grobler
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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
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