( 3109 ) 



Oncidium bicornutum. Two-Horned 

 Oncidium. 



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Class and Order. 

 Gynandria Monandria. 



( Nat. Ord. — Orchide.e. ) 



Generic Character. 



Labellum explanatum, lobatum, basi bi tuberculatum. 

 Petala patentia (2 antica nunc connata). Columna alata. 

 Masses Pollinis 2, postice bilobae : medio affixae processu 

 communi stigmatis. Br. 



Specific Character. 



Oncidium bicornutum ; bulbo elongato diphyllo, scapo 

 radicali, panicula densa, perianthio tetraphyllo foliohs 

 obovatis subaiqualibus, labello angulato-lobato late- 

 ribus apiceque reflexis, disco tuberculato, columna 

 pubescente, anthera cornubus duobus mollibus re- 

 flexis. 



Descr. The bulbs of this singular and beautiful species 

 of Oncidium are four to five inches long, subcylindncal, 

 furrowed, clustered and clothed at the base with lacerated, 

 brown, sheathing scales, at the extremity bearing rare y 

 one, mostly two, linear-lanceolate, coriaceous, obscurely 

 striated, acuminated leaves. Scape radical, terete, jointed 

 and bracteated, rising a little above the leaves, and bearing 

 a comparatively large and dense panicle, which, apparently 

 from the weight of the numerous flowers, curves gracefully 

 like an ostrich-feather, the branches somewhat distichous, 

 each ramification and the base of each flower bracteated. 

 Perianth deep yellow, with transverse spots and bars ot a 

 dark-red purple-brown colour, almost wholly yellow at the 

 r l base, 



vol. v. M 



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