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Orchid Species: Oncidium unicorne

Kew currently accepted name is Gomesa longicornu

Oncidium unicorne is an orchid species identified by Lindl. in 1839. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Gomesa longicornu.
Genus
Oncidium (Onc.)
Grex
unicorne
(traditional Sander nomenclature)
Parents
Species
Author
Lindl.
Year
1839
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ORIGIN: Found in Minas Gerais, Rio de Janeiro, Sao Paulo, Parana, Santa Catarina and Rio Grande do Sul states of Brazil in the southeast Atlantic forest at elevations of 500 to 1800 meters, in shaded and humid places.

DESCRIPTION: Small sized, warm to cool growing epiphyte with clustered, oblong-conical, slightly compressed, ridged pseudobulbs carrying 1 or 2 apical, erect, rigid, oblong to oblong-ligulate, subacute leaves that are deep green above and paler below and blooms in the spring, summer and fall on a basal, 10 to 18 [25 to 45 cm] long, paniculate inflorescence with 6 to 10, spreading, subdistichous, slender branches carrying 7 to 20 flowers each, all held in the apical half and having membraneous floral bracts.

FLOWER SIZE: 2/5 inch [1 cm] -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Gomesa Gom longicornu 2009 (Mutel) M.W.Chase & N.H.Williams
Add+ Oncidium Onc gautieri 1869 Regel
Add+ Oncidium Onc macronix
Add+ Oncidium Onc monoceras 1841 Hook.
Add+ Oncidium Onc rhinoceros 1856 Rchb.f.
Add+ Oncidium Onc unicornutum 1838 Knowles & Westc.
Add+ Rhinocerotidium Rhinocerotidium rhinoceros 2006 (Rchb.f.) Szlach.
Add+ Oncidium Onc longicornu 1838 Mutel
Add+ Rhinocidium Rhc longicornu 2006 (Mutel) Baptista
Add+ Rhinocerotidium Rhinocerotidium longicornu 2006 (Mutel) Szlach.
Add+ Coppensia Cpp longicornu 2010 (Mutel) F.Barros & V.T.Rodrigues
Add+ Gomesa Gom rhinoceros 2009 (Rchb.f.) M.W.Chase & N.H.Williams
Most awarded/recent cultivars: Onc. longicornu 'Memoria Ineke de Zoeten' (2001) Onc. rhinoceros 'Arborview' (1994) Onc. longicornu 'Memoria Helena Leighty' (1980) Onc. unicorne 'Joyce' (1973)
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