Oncidium maizifolium Lindl. 1846 SECTION Oblongata Photo by Billorc and Orchids Online Website

Inflorescence Photo courtesy of Tony Watkinson Copyright

to LATE THROUGH

Common Name The Maize-Like Leaf Oncidium

Flower Size 1" [2.5 cm]

Found in Colombia and Venezuela at elevations of 900 to 2100 meters as a medium sized, warm to cool growing epiphyte with egg-shaped, laterally compressed pseudobulbs partially enveloped basally, by several, imbricating, distichous leafless and leaf bearing sheaths and carrying one to 2 apical, oblong to lanceolate, acute, ventrally keeled entirely, dorsally folded below to form a short petiole-like stem leaves that blooms in the late spring and fall on an axillary, 39 to 59" [100 to 150 cm] long, erect then arching, twining, paniculate, slightly fractiflex, laxly many flowered inflorescence arising on a newly matured pseudobulb with each major, 12" [30 cm] long branch carrying 15 to 20, widely spread, fragrant flowers.

Synonyms Oncidium maizaefolium Lindl. 1846 sp?; Oncidium schlimii Linden ex Lindl. & Paxton 1851; Oncidium volvox Rchb.f. 1854

References W3 Tropicos, Kew Monocot list , IPNI ; Bonplandia Rchb.f 1853 as O volvox; Bonplandia as O maiyaefolium; Xenia Orchidaceae Rchb.f 1854 as O volvox drawing fide; Die Orchideen Schlechter 1915 as O schlimii; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 drawing hmm; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 as Oncidium volvox; Venezuelan Orchids Illustrated Vol 1 Dunsterville & Garay 1959 as O volvox drawing ok; AOS Bulletin Vol 30 No 5 1961 as O volvox; AOS Bulletin Vol 38 No 6 1969 as O volvox; Flora de Venezuela Foldats Volumen XV Part 5 1970 drawing good; Flora de Venezuela Foldats Volumen XV Part 5 1970 as O volvox drawing ok; Orchids of Venezuela An Illustrated Field Guide Vol 2 Dunsterville & Garay 1979 as Oncidium volvox drawing ok; Rudolf Schlechter Die Orchideen Lieferung 33-6 1997 as O volvox; Orchids of Venezuela [An illustrated field guide] Vol. 2 Ramiro and Carnevali 2000 as O volvox drawing ok; Orquideas Nativas del Tachira Cesar Fernandez 2003 as O volvox photo not; Native Ecuadorian Orchids Vol 4 Dodson 2003 photo fide; Oncidium Vol 1 Koniger 2004; Orquideologia Vol. 23 No 2 2004; Orchid Species Culture: Oncidium, Bakers 2006;

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