half inches long, approximate, narrow ovate-oblong, com- 
pressed, green, clothed with a white membranous appressed 
sheath, that ends in a short point, and is usually split on one 
side; a short outer boat-shaped sheath also envelops the base 
of the pseudobulb. Leaf sessile, short, three to five inches 
long by one and a half to one and three-quarters of an inch 
broad, broadly oblong, tip rounded (rarely acuminate, accord- 
ing to Mr. Liiddemann), or emarginate, very coriaceous, 
indeed, deep bright green and shining. Scape stout, much 
shorter than the leaf, 1-2-flowered. Mower four inches in 
diameter across the petals, which, as well as the sepals and 
convolute body of the lip, are of a bright amethyst colour. 
Sepals \inear-lanceolate, acute. Petals larger and broader 
than the petals, broadly elliptic-oblong, obtuse. Lip convo- 
lute ; lateral lobes very shallow, and, as well as the short 
emarginate midlobe, white with crisped and waved minutely 
toothed margins; disk of the body of the lip white, with | 
seven parallel, slender undulate, golden-yellow ridges, which 
are not prolonged on to the midlobe. Column slender, not 
winged. Pollen masses eight.—J. D. H. 
Fig. 1, Column ; 2, lip spread open; 8 and 4, front and back view of pollen- 
masses :—all magnified. 
