Oncidium cheirophorum Rchb. f. 1852 SECTION Rostrata
Inflorescence Photos by © Milan Vágner
Plant and Flowers in situ Costa Rica Photo by © Wilfried Löderbusch
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Common Name The Hand Carrying Oncidium - The Colombia Buttercup
Flower Size less than 3/4" [less than 1.5 cm]
Found from Nicaragua to Colombia as a dwarf, cool to warm growing epiphyte in lower montane rainforests at elevations of 1000 to 2500 meters often in full sun on larger branches with smooth, lightly brown stained, pyriform, laterally compressed psuedobulbs with a single apical, thin, elliptic-lanceolate leaf that blooms on a slender, erect to arching, to 12" [30 cm] long, densely many flowered panicle arising on a mature pseudobulb that has triangular bracts with fragrant, waxy flowers occuring in the fall.
Synonyms Oncidium cheirophorum var. exauriculatum Hamer & Garay 1974; Oncidium dielsianum Kraenzl. 1922; Oncidium exauriculatum (Hamer & Garay) R. Jiménez 1992; Oncidium macrorhynchum Kraenzl. 1922
References W3 Tropicos, Kew Monocot list , IPNI ; Lankester's Epidendra Website CR ; Xenia Orchidaceae Rchb.f 1854 drawing fide; Icones Planetarum Tropicarum plate 900 Dodson 1983 as O cheirophorum var exauriculatum; Icones Planetarum Tropicarum plate 1240 Dodson 1985; Icones Planetarum Tropicarum plate 1468 Atwood 1992; Orchid Australia Vol 12 No 5 2000 photo; Australian Orchid Review Vol 66 No 2 2001 photo; The Pictoral Encyclopedia of Oncidium Zelenko 2002; Orquideologia Vol. 23 No 2 2004; AOS Bulletin Vol 74 No 11 2005 photo; Oncidium Vol 2 Koniger 2005; Orchid Species Culture: Oncidium, Bakers 2006;
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