ONCIDIUM. 475 



and having around them several other processes, besides a 

 few varicosities towards the edge of the Hp. — Brazil; / Mexico. 



YiG.—K. cj- W. Floral Cab., iii. t. 137; Bot. Reg., 1845, t. 40; Annales de 

 Gand, 1845, t. 1 ; Journal of Hort. Sac. Land., 1848, xvii. (Pinellianum). 



Syn. — Yar. a. : 0. spilopterum, 0. gallopavinum, 0. stenopetalum ; Yar. B. : 

 0. ramosum, 0. Pinellianum. 



0. bicallosuin, Lindley. — A showy dwarf species without 

 pseudobulbs, but producing a single dark green oblong leaf, 

 which is remarkably thick and fleshy in texture, and keeled so 

 as to become almost boat-shaped. The peduncle or scape rises 

 with the leaf from between some basal scales, and is dwarfish, 

 erect, bearing a many-flowered raceme. The flowers are 

 large and showy, with obovate spreading sepals and petals, 

 the latter rather larger, all undulated and yellow tiuged with 

 green> and a large three-lobed lip of a bright yellow, the 

 lateral lobes small and obovate, the intermediate one large 

 and two-lobed, with a bicallose crest at its base. This 

 makes a fine plant for winter-blooming, and continues in 

 perfection a long time. It is very much like 0. Cavenclishia- 

 iium in its flowers and manner of growth, but is less robust. — 

 Guatemala. 



YiG.—Bot. Mag., t. 4148 (colour incorrect) ; Bot. Eeg.,18io, t. 12 ; Jllinf. 

 Hort., t. 458. 



0. hicolor, Lindley. — This fine species has oval compressed 

 pseudobulbs, three-ribbed on each side, solitary oblong sessile 

 leaves, and divaricate panicles of handsome flowers, which 

 have ovate acute sepals and petals, and a flat bilobed lip, 

 which is very large, deep yellow on the upper side, and almost 

 white underneath, the sepals and petals and the base of the 

 lip being spotted with chestnut brown. It blooms in 

 September. This will thrive on a block suspended from the 

 roof. Dr. Lindley now places it as a variety (hicolor) of 

 0. Martianum, the type of which has whole-coloured yellow 

 blossoms. — Brazil. 



^G.—Bot. Reg., 1843, t. 66. 



0. bifolium, Sims. — A handsome dwarf-growing species 

 now very rare, having ovate dark green obsoletely hexagonal 

 pseudobulbs, and short lance-shaped keeled deep green leaves, 

 borne in pairs. The slender scapes proceed from the base of 

 the bulbs, and bear elegant nodding racemes of eight or ten 

 showy flowers, which have the small ovate or oblong sepals and 

 petals yellow, barred and spotted with rich chestnut brown. 



