390 ORCHIDS. 
petals also stalked, shorter than the sepals, recurved, very 
wavy, bright yellow, with bands of reddish brown on the 
lower half; lip small, purple, lanceolate, recurved, the crest 
consisting of one large, blunt, lobed, yellow tooth. This 
is an attractive plant when in flower, but, like all the 
plants belonging to the group with large sepals and petals 
and a very small lip, it is not easy to flower, although it 
grows freely and keeps in robust health in a cool house 
under ordinary treatment. Like its allies, it requires a 
liberal allowance of root-room and plenty of water at all 
times. A native of New Granada and Venezuela; intro- 
duced in 1872. 
Botanical Magazine, t. 5980. 
0. tigrinum.—A most beautiful, free-flowering, and very 
fragrant species, which thrives under ordinary treatment. 
It has large, broadly ovate, compressed pseudo-bulbs, 3in. 
long, and two-leaved. Leaves stout, leathery, bright green, 
about rft. long by 2in. broad. Flower-spike stout, erect, 
3ft. long, branched, many-flowered, each flower on a pedicel 
1din. long, and measuring 24in. across; sepals and petals 
equal, rin. long, wavy, recurved, acute-pointed, rich reddish 
brown, with a few bars and blotches of dull yellow; lip 
narrow and eared at the base, then expanded into a broad 
reniform or almost orbicular blade nearly 2in. across, its 
colour being bright sulphur-yellow. The odour of the 
flowers is violet-like and very powerful. No plant could 
be more useful than this, its blossoms usually developing 
in late autumn and winter, lasting several weeks, and 
filling the house with a delightful fragrance. It thrives 
in a warm greenhouse, requiring, in other respects, the 
same treatment as the Odontoglossums. A _ native of 
Mexico; introduced in 1840. Syn. O. Barkert. 
Botanical Register, t. 1651. 
