Oncidium longifolium Lindl. 1841SECTION Cebolletae Drawing by © W. Cetzal-Ix and J. Torrey Bot. Soc. 137: 198 Cetzal & Carnevali 2010 A Revision of Cohniella Pfitzer in Mexico

Common Name The Long Leaf Oncidium

Flower Size 1.08 to 1.44" [2.7 to 3.6 cm]

Found in Mexico without locality as a miniature to small sized, hot growing epiphyte with subspherical to broadly ovoid, red purple tinged pseudobulbs completely enveloped by 3 imbricate, eventually deciduous sheaths and carrying a single terete, thickly fleshy-coricaeous, to 39" [97.5 cm] long, dark green, usually purple spotted, abruptly constricted proximally, broadest at the base, gradually attenuated distally into the pungent apex, often somewhat falcate leaves that blooms on a single, from the base of the pseudobulb, 39 to 52" [97.5 to 130 cm] long overall, peduncle erect to arched, terete rachis racemose to paniculate with 5 branches, 1.6 to 4.4" [4 to 11 cm] long, each branch 3 to 5 flowered, to 38 flowered overall inflorescence with narrowly elliptic, acuminate floral bracts and carrying resupinate flowers.

Synonyms Cohniella longifolia (Lindl.) Cetzal & Carnevali 2010; Trichocentrum longifolium (Lindl.) R.Jiménez 2011

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