Oncidium forbesii Hook. 1839 SECTION Crispa Photo courtesy of Lourens Grobler

Flower Closeup Photo courtesy of Carlos Keller

Another Clone

Another Angle Photo courtesy of Jay Pfahl


Common Name Forbes' Oncidium [English Orchid Collector 1800's]

Flower Size to 2 1/2" [6 cm]

Found in Minas Gerais, Espirito Santo, Rio de Janiero, and Sao Paulo at elevations of 50 to 1200 meters as a small to medium sized, epiphytic species from the southeast Atlantic forest that grows warm to cool and has oblong or elliptic-ovoid, compressed pseudobulbs carrying a single, or rarely 2 apical, lanceolate or oblong-ligulate, coriaceous, acute to mucronate leaves and blooms in the fall on an erect or nodding, to 40"' [100 cm] long, simple or paniculate inflorescence with membranous, triangular, acute bracts.

Very similar to O crispum but differs in having entire column wings and rich chestnut brown flowers that have the margins yellow marbled.

Synonyms Anettea forbesii (Hook.) Szlach. & Mytnik 2006; Brasilidium forbesii (Hook.) Campacci 2006; Gomesa forbesii (Hook.) M.W.Chase & N.H.Williams 2009; Oncidium crispum var. forbesii Burb. 1882; Oncidium cripum var marginatum Hort. ?; Oncidium forbesii Hkr var atratum Linden 1902; Oncidium forbesii Hkr var borwickianum Rchb.f 1879; Oncidium forbesii Hkr var bradshawae Hort. 1902; Oncidium forbesii Hkr var castanea Lindl. 1899; Oncidium forbesii Hkr var marginatum Hort. 1886; Oncidium forbesii Hkr var maximum Linden & Rodig 1888; Oncidium forbesii Hkr var measursianuim Krzl. 1891; Oncidium forbesii Hkr var moortebeekiense Linden 1899; Oncidium forbesii Hkr var nigricans Linden 1899; Oncidium forbesii Hkr var splendens Hort. 1888

References W3 Tropicos, Kew Monocot list IPNI ; Die Orchideen Schlechter 1915 photo ok; Atlas des Orchidees Cultivees Constantin 1920 drawing fide; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922; Encyclopedia of Cultivated Orchids Hawkes 1965; Orchid Digest Vol 44 No 2 1980 photo fide; Orchid Digest Vol 46 No 3 1982 photo fide; AOS Bulletin Vol 56 No 5 1987 photo; Orchids of the High Mountain Atlantic Rainforest in SE Brazil Warren & Miller 1994; Rudolf Schlechter Die Orchideen Lieferung 33-6 1997; Australian Orchid Review Vol 66 No 2 2001 photo; Orchid Species Culture: Oncidium, Bakers 2006; Oncidium Vol 1 Koniger 2004; The Pictoral Encyclopedia of Oncidium Zelenko 2002; Orchids of Brazil Vol 1 Oncidinae Baptista, Harding & Neto 2011 as Brasilidium forbesii photo fide