Oncidium yucatanense (Cetzal & Carnevali) in ed. SECTION Cebolletae Photo by © Kennedy and Harvard Papers in Botany Vol 21 #2 Cetzal-Ix Carnevalli and Romero-Gonzalez 2016 Synopsis of the Trichocentrum Clade

Common Name The Yucatan Oncidium

Flower Size .56" [1.4 cm]

Found in southeastern Mexico in tropical deciduous forests at elevations around sea level to 300 meters as a small to medium sized, hot growing epiphyte with subspherical to broadly ovoid, green pseudobulbs enveloped completely by 3 imbricate, eventually deciduous sheaths and carrying a single, apical, terete, thickly fleshy-coriaceous, dark green usually purple spotted, often somewhat falciform leaf that blooms in the spring on a single, basal, 4.4 to 40" [11 to 100 cm] long overall, peduncle erect to arched, terete, with 3 to 13 remotely bracted internodes, basal longest, oblanceolate, acuminate, tubular bracts subtending the lateral branches, 1 to 4 shortly branched, each branch 3 to 12 flowered, peduncle and rachis dark green, purple tinged, 3 to 17 flowered inflorescence with narrowly elliptic, acuminate floral bracts and carrying resupinate flowers.

Synonyms *Cohniella yucatanensis Cetzal & Carnevali 2010;Trichocentrum yucatanense (Cetzal & Carnevali) R.Jiménez & Solano 2011

References W3 Tropicos, Kew Monocot list , IPNI ; *J. Torrey Bot. Soc. 137: 198 Cetzal & Carnevali 2010 as Cohniella yucatanensis drawing fide; Harvard Papers in Botany Vol 21 #2 Cetzal-Ix Carnevalli and Romero-Gonzalez 2016 Synopsis of the Trichocentrum Clade as Cohniella yucatanense photo fide;

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