in shady forests, at an elevation of 2000 feet, sometimes at- 
taining three feet in height. It flowered in Messrs. Veitch’s 
establishment in December, 1878, and was named by Dr. 
Reichenbach after Sir Trevor Lawrence, Bart., M.P., the 
possessor of a renowned collection of Orchids, which the 
author of the species describes as being of exceptional richness 
and beauty. 
Descr. Stemless, or with the stem a foot high. Leaves 
distichous, nearly a foot long, including the broad flattened 
sheath, linear-elliptic, acute, two inches broad, nearly flat, 
grooved down the centre in front, and keeled at the back, 
about 12-nerved, tessellated with bright greenish white and 
dull green. Scape longer than the leaves, flexuous, 
1-2-flowered, clothed with long spreading glandular hairs, as 
are the bract, ovary, and back of the sepals. Bract small, 
oblong, obtuse. Flower erect, upwards of five inches across 
the petals, and as much from the tip of the dorsal sepal to 
that of the lip. . Dorsal sepal very large, orbicular, rather 
broader above the middle, white with broad purple alternately 
long and shorter bands, the latter warted towards the base, 
none of them reaching the tip ; margins very slightly revolute 
below the middle; lateral sepals combined into a brown 
oblong obtuse concave ribbed limb much shorter than the 
lip. Petals straight, flat, two and a half inches long, and one 
half inch broad ; ciliate, green, dull purple towards the subacute 
tips, with a series of six or eight purple vanished hairy 
warts along each margin, and a few on the disk beyond the 
middle. Zip dull purple, two inches long, subcylindrical, 
ventricose below the middle, mouth slightly dilated, emargi- 
nate in front, Staminode lunate with acute incurved cusps, and 
five teeth in the sinus, cleft with a narrow sinus at the 
back.— J. D. H. 
