SOBRALIA. "gaa 
are from rft. to 2ft. in height, and the leaves are broadly 
lance-shaped, tapering to a long, narrow point, and some- 
what hard in texture. One flower only is open on a stem 
at once, and each lasts but a single day; the stems, how- 
ever, continue to push forth a succession of flowers, so 
that during the flowering season a fairly large plant is 
not long without bloom. The spreading, oblong sepals and 
petals are pure white, the latter slightly larger and broader. 
The lip is of a yellowish colour, beautifully tinged with 
rose-pink; the sides curl upwards, and meet above the 
column ; the front lobe is expanded, and prettily undulated 
at the margin. Each flower is 2in. across. A native of 
British Guiana; introduced in 1840. It flowers from 
October to January. 
Botanical Magazine, t. 4570. 
S. xantholeuca.—A lovely species, differing but little in 
general appearance from S. macrantha, except that, so far 
as can at present be judged, it does not grow so tall. 
The sepals and petals are narrowly oblong, and of a pale 
lemon-yellow, the large, frilled lip being of a deeper shade. 
This species was introduced about 1881, and it still remains 
extremely rare. It appears to possess the free-flowering 
character of S. sessilis. Its precise native locality has not 
been divulged. 
Garden, xxii., p. 366. 
