ONCIDIUM. 391 
0. varicosum.—This is one of the most elegant and 
attractive-flowered Orchids. It has ovate, angled, furrowed 
pseudo-bulbs 2in. to gin. high, each bearing two strap- 
shaped, firm, dark green leaves about gin. long. Flower- 
Fig. 95. Flowers of Oncidium varicosum var. Rogersii 
(nat. size). 
spikes strong, arching, many-branched, sometimes  3ft. 
long and heavily laden with flowers, which are about tin. 
across; sepals and petals small, green, with brownish 
blotches; lip large, spreading, bright yellow, with two 
