Oncidium sessile Lindl. & Paxton 1850

Drawing by Paxton

Common Name The Sessile Oncidium

Flower Size .9" [2.3 cm]

Found in Venezuela, Colombia, Ecuador and Peru in cool seasoanlly dry forests as a miniature sized epiphyte with a short rhizome giving rise to close set, pyriform pseudobulbs enveloped baslly by 3 pairs of imbricating leafless and leaf-bearing sheaths and carrying a single, apical, erect, linear-elliptic, acuminate, becoming conduplicate towards the base leaf that blooms in the spring an an erect, paniculate, flexuous, slender, many flowered inflorescence arising on a mature pseudobulb and with very short, acuminate, ovate floral bracts.


References W3 Tropicos, Kew Monocot list , IPNI ; Atlas des Orchidees Cultivees Constantin 1920 drawing ok; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922; Orchids of Peru Vol 4 Schweinfurth 1961; Flora de Venezuela Volumen 15 quinta parte Foldats 1970; Icones Planetarum Tropicarum plate 143 Dodson & Bennett 1989 drawing fide; Orquideologia Vol 23 #2 2004; Orchid Species Culture Oncidium/Odontoglossum alliance Bakers 2006;