quently in various collections. The material for our 
figure has been derived from a plant purchased from 
Messrs. Sander, which has thriven well under the con- 
ditions suitable for O. crispum and has flowered annually 
in May. In the genus, O. platycheilum is very distinct 
and indeed somewhat aberrant; its nearest ally is 
O. mazillare, Lindl., a species figured at t. 6144 of this 
work, 
Description.—Herb, epiphytic; rootstock almost scandent; pseudobulbs 
narrowly ovoid-oblong, 2-23 in. long, 1-foliate, clothed below with large sheaths, 
Leaves ligulate, rather blunt, firm, narrowed to the base, 6-11 in, long, 3-1} in. 
wide. Scapes axillary, erect, 4-5} in. long, few-flowered, with a few basal 
sheaths; bracts ovate, subacute, about 2 in. long; pedicels 14-13 in. long, 
8-quetrous. Flowers showy, rose-coloured, the lip blotched with carmine. 
nad oblong-lanceolate, acute, keeled on the back, 3-1 in. long. Petals 
oblong-lanceolate, acute, {-l1in. long. Lip clawed, wide ovate, obtuse, 13-1} 
in. across, margin repand, crested at the base, crest 2-lobed. Column clavate, 
% in. long, narrowly winged. 
Tas. 8718.—Fig. 1, base of the lip, showing the crests; 2, column ; 
8, pollinarium; 4, transverse section of ovary :—all enlarged. 
