the plant in the collection at Kew which agrees in every 
detail with the Burford plant. The species thrives well 
under the conditions suitable for other tropical species of 
the genus; the circumstances which determine the forma- 
tion of flowering spikes, however, remain obscure. When 
these spikes do form, the plant becomes a striking object, 
owing to the remarkable length of the lateral sepals, which 
in the wild state and in flowers developed in the open air in 
the Malay Peninsula are stated by Mr. Ridley to be upwards 
of a foot in length, and readily distinguish it from every 
hitherto described species. 
Description.—Lerb, epiphytic; rhizome creeping, rather 
stout; internodes 14-24 in. long; pseudobulbs ovoid, 
1-1} in. long, clothed at the base with ovate membranous 
sheaths, each bearing a single leaf. Leaves subsessile, 
oblong, leathery, recurved and subacute at the tip, narrowed 
to the base, 34-6 in. long, 1-13 in. wide. Scapes curved or 
pendulous, about 8 in. long, beset with 2-3 acuminate 
sheaths. Flowers in umbels of 4-7, shortly pedicelled, 
whitish with rose-coloured streaks, bracts oblong-lanceolate, 
acuminate, 5-7 lin. long, about as long as the pedicels. 
Sepals: posterior lanceolate or oblong-lanceolate, ciliate, 
3-? in. long, incurved, concave, marked with 5 red longi- 
tudinal veins; lateral pair long connate, linear, 8-12 in. 
long, with distinct pink longitudinal streaks, and ending in 
very long slender tails. Petals falcate, oblong or oblong- 
lanceolate, somewhat acute, ciliate, 4-5 lin. long. Lip re- 
curved, ovate-oblong, subacute, fleshy, channelled along the 
centre, about 4 lin. long. Column oblong, about 4 lin. 
long; stelidia faleately incurved, filiform, acute; anther 
shortly hispid. 
Fig. 1, a dorsal sepal; 2, a flower with sepals removed; 3, column and lip; 
4, lip; 5, anther-cap; 6, pollinia:—ail raldepad. i : 
