ONCIDIUM. 227 



fection a long time. It requires the same treatment as the 

 preceding, and, like it, should be placed at the cool end of 

 the Cattleya house. Native of Monte Video. 



O. bicallosum. — A showy dwarf species, producing a single 

 dark-green, thick, fleshy leaf; the spike is erect and many- 

 flowered ; sepals and petals dark brown ; lip bright yellow. 

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

 perfection a long time. It is very much like 0. Cavendishii 

 in flowers and growth, but less robust. Native of Guatemala. 



0. bicolor. — This is a fine species from the Spanish Main, 

 and blooms in September ; sepals and petals yellow, spotted 

 with crimson. The lip is very large, deep yellow on the 

 upper side, and almost white underneath. This will thrive on 

 a block suspended from the roof. 



0. calanthum. — A pretty, distinct, and free-flowering species, 

 which thrives best potted in peat, and placed in the cool- 

 house ; the flower spike is long, and bears a profusion of its 

 gay blooms ; sepals and petals somewhat oblong, nearly as 

 long as the lip, light yellow ; lip broad deep yeUow, the crest 

 of the lip and column being stained with red. Native of 

 Ecuador. 



0. Cavendishii. — The large, broad, and fleshy leaves of 

 this princely Orchid are of a rich and lively green ; its bright 

 yellow flowers are produced in great abundance from strong 

 and branching spikes, and the fact of their appearing in the 

 dull months of winter greatly increases its value. The 

 flowers, even at this season, retain all their brilliancy for 

 several weeks. It may be grown on a block or in a pot, but 

 on account of its size seems to do best in the latter. Native 

 of Guatemala. 



0. chrysothyrsus.— This very showy and free-flowering 

 Oncidium is a native of Brazil. It is free and compact in 

 its growth, seldom growing more than a foot high, and pro- 



