Oncidium jonesianum Rchb.f 1883 SECTION Cebolletae Photo by Jay Pfahl
Flower Closeup Photo by © José Luis Panozo Añez
Disected Flower Photo by © E Schnurr
to 
Common Name Jones' Oncidium [English Orchid Enthusiast]
Flower Size 2 to 3" [5 to 7.5 cm]
From southern Brazil, Paraguay and Uruguay in riverine forests, this species is a medium sized, cool to hot, pendant growing epiphyte with very small, ovoid pseudobulbs carrying a single, apical, fleshy, terete, linear, grooved, leaf with a thorn like apex that blooms in the fall with an arching to pendant, 2' [60 cm] long, few to several [6 to 16] flowered, compressed, slender raceme with ovate, triangular, shortly triangular bracts and longlasting, showy and nodding flowers.
Synonyms Cohniella jonesiana (Rchb. f.) Christenson 1999; Oncidium jonesianum var. binotii Pabst 1977; Oncidium jonesianum var. flavens Rchb.f. 1888; Oncidium jonesianum var. phaeanthum Sander 1887; Stilifolium jonesianum (Rchb. f.) Koniger & Pongr. 1997; Trichocentrum jonesianum (Rchb.f.) M.W.Chase & N.H.Williams 2001
References W3 Tropicos, Kew Monocot list , IPNI ;
Die Orchideen Schlechter 1915; Das Pflanzenreich Odontoglossum/Oncidium Kranzlin 1917; Atlas des Orchidees Cultivees Constantin 1920 drawing fide; Iconografia de Orchidaceae Do Brasil Hoehne 1949 drawing fide; AOS Bulletin Vol 30 No 9 1961; Encyclopedia of Cultivated Orchids Hawkes 1965; AOS Bulletin Vol 37 No 1 1968 photo fide; Orchid Digest Vol 36 No 3 1972 photo fide; Orchidaceae Brasilenses Band 2 Pabst & Dungs 1977 drawing fide; AOS Bulletin Vol 49 No 1 1980 photo fide; AOS Bulletin Vol 51 No 4 1982 photo fide; AOS Bulletin Vol 56 No 11 1987 photo fide; Icones Planetarum Tropicarum Series II Orchids of Bolivia plate 0359 Dodson & Vasquez 1989 drawing fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Launert 1992 photo fide; Schlechteriana Vol 4 No 1/2 1993 drawing fide; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997 photo fide; Lindleyana Vol 16 No 2 2001 as Trichocentrum jonesianum; 100 Orquideas Argentinas Freuler 2005 photo fide; Orchid Species Culture: Oncidium, Bakers 2006 as Cohniella jonesiana (Rchb. f.) Christenson 1999; Rudolf Schlechter Die Orchideen Band 1C lieferung 44-45 pg 2763 - 2898 Brieger 2001 as Cohniella jonesiana; The Pictoral Encyclopedia of Oncidium Zelenko 2002 as Trichocentrum jonesianum; Orchids of The Brazilian Central Plateau Menezes 2004 photo fide; AOS Bulletin Vol 74 No 2 2005 photo fide; AOS Bulletin Vol 86 # 11 2017 as Trichocentrum jonesianum photo fide; Of Men and Orchids Part 1 Jenny 2015 drawing/photo fide;
Oncidium jonesianum Rchb.f 1883 var flavens
An albino form of the previous species.
References W3 Tropicos, Kew Monocot list , IPNI ; Orchids of The Brazilian Central Plateau Menezes 2004 as O jonesianum var binotii photo fide
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