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Orchid Species: Petalocentrum pusillum

Kew currently accepted name is Oncidium gramineum

Petalocentrum pusillum is an orchid species identified by (Schltr.) Schltr. in 1918. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Oncidium gramineum.
Genus
Petalocentrum (Pet.)
Grex
pusillum
Parents
Species
Author
(Schltr.) Schltr.
Year
1918
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ORIGIN: Found in Ecuador, Peru and Bolivia at elevations of 550 to 1600 meters in wet montane forests.

DESCRIPTION: Miniature sized, cool to hot growing epiphyte with an elliptic-ovoid, compressed pseudobulb with basal, leaf-bearing bracts that are shorter than the single, apical, linear, bilobed leaf that can bloom on a axillary, 1 1/4[3cm] long, few flowered raceme arising on a mature pseudobulb that is shorter than the leaf and occurring at any time of the year although mostly in the spring through fall.

FLOWER SIZE: 3/16 inch [5mm] -- 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 gramineum 2008 (Poepp. & Endl.) M.W.Chase & N.H.Williams
Add+ Petalocentrum Pet angustifolium 1918 Schltr.
Add+ Petalocentrum Pet bicornutum 1921 (Rolfe) Schltr.
Add+ Sigmatostalix Sgmx aurosanguinea 1876 Rchb.f.
Add+ Sigmatostalix Sgmx bicornuta 1913 Rolfe
Add+ Sigmatostalix Sgmx graminea 1852 (Poepp. & Endl.) Rchb.f.
Add+ Sigmatostalix Sgmx peruviana 1910 Rolfe
Add+ Sigmatostalix Sgmx pusilla 1912 Schltr.
Add+ Specklinia Spe graminea 1836 Poepp. & Endl.
Most awarded/recent cultivars: Onc. gramineum 'Peter' (2015) Sgmx. graminea 'Ecuagenera' (2004) Sgmx. graminea 'Fox Den' (1999) Sgmx. graminea 'Monroe' (1980) Sgmx. graminea 'Pheasant Hill' (1977) Sgmx. graminea 'Stephanie' (1974)
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