Oncidium forbesii Hook. 1839 SECTION Crispa

Photo by Lourens Grobler

Flower Closeup

Photo by Carlos Keller

Another Clone

Another Angle

Photo by 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 states of Brazil from the southeast Atlantic forest at elevations of 50 to 1200 meters as a small to medium sized, warm to cool growing epiphytic species with 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 Linden 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; AOS Bulletin Vol 14 #3 1946 photo good; Encyclopedia of Cultivated Orchids Hawkes 1965; Orchidaceae Brasilenses Band 2 Pabst & Dungs 1977 drawing fide; Orchid Digest Vol 44 No 2 1980 photo fide; Orchid Digest Vol 46 No 3 1982 photo fide; AOS Bulletin Vol 56 No 4 1987 photo fide; Orchids Travel By Air A Pictoral Safari Mulder, Mulder-Roelfsema and Schuiteman 1990 photo fide; The Manual Of Cultivated Orchid Species Bechtel, Cribb & Launert 1992 photo fide; Orchids of the High Mountain Atlantic Rainforest in SE Brazil Warren & Miller 1994; Rudolf Schlechter Die Orchideen Band 1C lieferung 33 - 36 2057 - 2308 Brieger 1997; Orchid Digest Vol 63 #1 1999 photo fide; Australian Orchid Review Vol 66 No 2 2001 photo; Orchid Species Culture: Oncidium, Bakers 2006; Oncidium Vol 1 Koniger 2004 drawing/photo fide; The Pictoral Encyclopedia of Oncidium Zelenko 2002; AOS Bulletin Vol 78 #4 2009 as Gomesa forbesii photo fide; Orchids of Brazil Vol 1 Oncidinae Baptista, Harding & Neto 2011 as Brasilidium forbesii photo fide