ONCIDIUM. 389 
0. trifurcatum.— Flowers brown, with yellow-edged 
petals; lateral sepals larger than the upper one. 
0. xanthodon.—Flowers nearly 2in. across; sepals and 
petals stalked, ovate, wavy, brown, with yellow margins; 
lip recurved, yellowish, with a prominent, warty crest. 
0. splendidum.—This is one of the finest of the culti- 
vated Oncidiums. Its flowers resemble those of another 
beautiful species, viz., O. tigrinum—indeed, Sir Joseph 
Hooker called it a variety of that plant. Until 1888, O. 
splendidum was scarcely known in gardens, but it has since 
been introduced in great quantities, and is now plentiful 
and cheap. It has roundish, compressed pseudo-bulbs, 
about 2in. in diameter, one-leaved. Leaf leathery, thick, 
oblong-ovate, 6in. to 12in. long, 2}in. broad, dull green. 
Flower-spike erect, branched, 2ft. or more in length, and 
many-flowered; flowers 3in. across; sepals and petals 
equal, lanceolate, rin. long, recurved, yellow-green, with 
broad bands of brown; lip large, narrow at the base, where 
there are two small lateral lobes, the blade being 2in. 
broad and rhin. long, colour a rich, uniform yellow, with 
a white, two-ridged disk. This plant requires tropical 
treatment; it may be grown on a block or in baskets, in 
a mixture of peat and sphagnum, and likes plenty of 
water and sunlight. It blossoms in spring. A _ native of 
Guatemala and Mexico; introduced in 1870. 
Botanical Magazine, t. 5878 (as O. ¢tigrinum, var. 
splendidum). 
0. superbiens.—This species is similar to O. serratum. 
Pseudo-bulbs 4in. long, ovate, compressed, wrinkled when 
old. Leaves rft. long, 1}in. broad, leathery, acute-pointed, 
and keeled. Flower-spike twining, 2ft. to 5ft. long, branched, 
many-flowered ; flowers 24in. across; sepals stalked, broad, 
crisped and wavy, reddish brown, margined with yellow; 
