Oncidium luteum Rolfe 1893 SECTION Rostrata Photo courtesy of Daniel Jimenez

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Common Name The Egg-Yellow Oncidium

Flower Size 2/5" [1 cm]

Found in Costa Rica and Panama in windy cloudforests at elevations of 650 to 1700 meters as a mini-miniature sized, cool growing epiphyte with small, laterally compressed pseuobulbs completely enveloped by several pairs of conduplicate, imbricating leaf-bearing sheaths and carrying a single, apical, leathery, narrowly to broadly elliptic, acute, dorsally keeled, narrows below to a conduplicate base leaf that blooms in the fall on 1 or 2, erect, axillary, paniculate, many fractiflex branched, 18" [45 cm] long, many flowered inflorescence.

Synonyms Oncidium cheirophoroides Kraenzl. 1922; Oncidium pittieri Schltr. 1910

References W3 Tropicos, Kew Monocot list , IPNI ; Lankester's Epidendra Website CR ; Repert. Sp. Nov. Regni. Veg. Beih. 19: 151. Costa Rica Schlechter 1923 as O pittieri; Repert. Sp. Nov. Regni. Veg. Beih. 19: 261. Costa Rica Schlechter 1923 as O pittieri; Icones Planetarum Tropicarum plate 1572 Atwood 1993 drawing fide; Fieldiana Biology, Flora Costa Ricensis Family # 39 Orchidaceae, subtribes Maxillariinae and Oncidiinae Atwood & Mora 1997; Orquideologia Vol. 23 No 2 2004; Orchid Species Culture: Oncidium, Bakers 2006; Oncidium Vol 3 Koniger 2007 Photo/drawing fide; Orchids of Costa Rica Vol 2 Morales 2009 photo fide;

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