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Oncidium stenobulbon Thin Pseudobulbed Oncidium

 

Thin Pseudobulbed Oncidium , Oncidium stenobulbon

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Oncidium stenobulbon Kraenzl. 1922 SECTION Oblongata Photo by Daniel Jimenez

Fragrance Full shade Hot to Warm Fall THROUGH Spring

Common Name or Meaning The Thin Pseudobulbed Oncidium

Flower Size 1 to 1.2" [2.5 to 3 cm]

Found in Costa Rica in deciduous forests at elevations of 800 to 1050 meters as a small sized, hot to warm growing, caespitose epiphyte with elliptic-ovoid to suborbicular, strongly laterally compressed, furrowed when dry pseudobulbs enveloped basally by 2 to 4, imbricate, leaf-bearing sheaths and carrying 1 to 2 [3], apical, sessile to shortly petiolate, strongly carinate abaxially, elliptic to obovate, obtuse, coriaceous, conduplicate towards the base leaves that blooms in the fall and spring on a lateral, erect to arcuate, paniculate, longer than the leaf, 20 to 32" [50 to 80 cm] long, fractiflex, 2 to 5 flowered per branch, several to many flowered inflorescence.

This species is often cited as a synonym of Oncidium ansiferum but differs in having yellow green color, psueudobulbs and has shorter leaves that also are much squatter or shorter, less hatchet shaped column wings and most notably spotted tepals and also is found most often below 1350 meters. So we follow Atwood and Retana here and keep them separate.

Synonyms Oncidium naranjense Schltr. 1923

 

 

 

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