Oncidium nebulosum Lindl. 1841 SECTION Oblongata Photo by Roberta Fox and The SOUTHERN CALIFORNIA ORCHID SPECIES SOCIETY Website

Another flower Photo courtesy of Noble Bashor

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Common Name Cloud Forest Oncidium

Flower Size 2" [5 cm]

Oaxaca Mx., 35 klm beyond Mitla on gravel rd, epiphytic on oaks.

Found in Sinaloa, Durango, Jalisco, Michoacan, Guerrero, Morelos and Oaxaca states of Mexico and Guatemala [Peru?] on oak trees in oak/pine forests at elevations of 1500 to 2300 meters as a large sized, cold to cool growing epiphyte with ovoid-elliptic, laterally compressed, ancipitous pseudobulbs enveloped basally by several, imbricating dry sheaths and a few [one on each side] leaf-bearing ones and carrying two, apical, erect-spreading, leathery, linear-elliptic, acute leaves that are shortly conduplicate below into the petiole-like base that blooms in the winter on an axillary, erect or arching, few [to 10] flowered, to 20" [50 cm] long, racemose or simply loosely paniculate inflorescence arising on a newly matured pseudobulb.

CAUTION Current references add O klotzschianum as a synonym of this species but I have kept them and their synonyms separate for now.

References W3 Tropicos, Kew Monocot list , IPNI ; Das Pflanzanreich Regni Vegetabilis Conspectus Odontoglossum/Oncidium Kranzlin 1922 drawing ok; The Orchids of Panama L.O. Williams & P Allen 1946; Encyclopedia of Cultivated Orchids Hawkes 1965; Flora Novo-Galaciana Vol 16 McVaugh 1985; Orchid Species Culture: Oncidium, Bakers 2006; The Pictoral Encyclopedia of Oncidium Zelenko 2002; Orchid Species of Peru Zelenko Bermudez 2009 photo fide

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