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Onc. nigratum photo by Pedro Ortiz Valdivieso, Orchids of Colombia

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Orchid Species: Oncidium nigratum

(This name is currently accepted by Kew.)

Oncidium nigratum is an orchid species identified by Lindl. & Paxton in 1850.
Genus
Oncidium (Onc.)
Grex
nigratum
(name currently accepted by Kew)
Parents
Species
Author
Lindl. & Paxton
Year
1850
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ORIGIN: Found in Colombia and Venezuela, Guyana and south to Brazil in cloud forests or shrublands at elevations of 1500 to 2200 meters.

DESCRIPTION: Medium sized, cool to cold growing occasional terrestrial in thin soils in scrub, lithophyte on top of mesas and epiphyte low on trees in dwarf forests with pear-shaped, pale brown to yellow green, strongly laterally compressed, ancipitous, longitudinally grooved pseudobulbs partially enveloped basally by several pairs of imbricating, distichous, leaf-bearing sheaths and carrying 2 to 3, narrowly elliptic, stiff, acute, mostly keeled dorsally, shortly conduplicate below into the base leaves and blooms in the spring and summer on an erect, then pendant, to more than 79 [200 cm] long, lightly or strongly paniculate, each to 24 [60 cm] long branch carrying 5 to 15 flowers, many flowered inflorescence that arises on a newly matured pseudobulb and carries slightly fragrant, showy flowers.

FLOWER SIZE: 1 inch [2.5 cm] -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Oncidium Onc uaipanense 1952 Schnee
Add+ Cyrtochilum Cyr nigratum 1922 (Lindl. & Paxton) Kraenzl. in H.G.A.Engler (ed.)
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