Lindley’s Herbarium at Kew is identical with our plant as 
to flower, but has a more slender stem and narrow leaves 
three and a half inches long. A specimen from the Rev. 
Mr. Parish, collected presumably in Moulmein, is undis- 
tinguishable from that here figured in stem, leaves, and 
form and size of flower, but according to a drawing which 
accompanies it, the lip is a dull green without the thin 
red streaks. 
D. revolutwm flowered in the Orchid House of the Royal 
Gardens in July of the present year. 
Descr. Pseudo-bulbs none. Stems tufted, a foot long, as 
thick as a goose-quill, deeply furrowed ; internodes one- 
quarter to two-thirds of an inch long, not swollen; sheaths 
none. Leaves numerous, distichous, one to two inches long 
(three and a half inches in Lindley’s specimen), oblong or 
linear- or ovate-oblong, obtuse or retuse, semi-amplexicaul, 
keeled by the midrib, striate when dry. flowers solitary, 
axillary, three-fourths of an inch long from the tip of the 
dorsal sepal to that of the hp; bracts caducous; pedicel 
slender, decurved, with the ovary two-thirds of an inch 
long. Sepals and petals white, reflexed upwards, lanceolate, 
acute, nearly equal, except the dorsal sepal, which is rather 
the longest and broadest. Lip nearly quadrate, convex, 
bright yellow-green, tip truncate with rounded angles; 
lateral lobes small, marginal lobes towards the base of the 
median; disk with three furrows and red bands; spur as 
long as the sepals, nearly straight, subacute. Colwmn very 
small, prone upon the labellum, and about one-third of its 
length.—J. D. H, 
Fig. 1, Flower with sepals and petals removed; 2, column and spur; 3, pollen- 
masses; 4, anther-case :—al/ enlarged. 
