CATASETUM. 89 
or ribs. The flowers are greenish or cream-white at first, 
finally becoming a beautiful ivory-white; they measure 
4in. across. The sepals are lance-shaped, and pointed, the 
upper one, with the two petals, forming a kind of hood above 
the column. The lip is broad, and spoon-shaped, with a 
depression or pit in the centre, and in most cases finely 
serrated at the edge. A native of tropical America; 
introduced in 1885. 
Fig. 22; Botanical Magazine, t. 6998. 
C. Christyanum.—A curious species, with stout, tapering 
pseudo-bulbs, and long, plaited leaves. The flower-spike is 
erect, bearing six to twelve flowers, which are developed 
during September and October. The sepals and petals are 
of a dull chocolate-brown, and the lip is bright green, 
shaded with purple. Native of Brazil. 
Williams’ Orchid Album, t. 83. 
C. longifolium.—This is a most remarkable Orchid, found 
growing on the top of a species of palm in Demerara. 
The pseudo-bulbs are stout and grey, and they have the 
curious habit of growing downwards. The leaves are narrow 
and glaucous, attaining a length of from rft. to 4ft. The 
flowers are densely produced on pendent spikes, having 
sepals and petals of a dull red colour, and a helmet-shaped 
lip of brownish lake, thickly dotted with yellow; they are 
about 13in. in diameter. This species was discovered by 
Sir R. Schomburgk, in 1836, and flowered first in this country 
three years later. When growing it requires very hot and 
moist treatment. Syn. Monacanthus longzifolius. 
C. macrocarpum.—One of the most easily-grown, and, 
at the same time, one of the most striking of Cata- 
setums. The pseudo-bulbs are 1ft. in length, and the flowers 
3in. to 4in. in diameter. The broad, stiff sepals and petals 
