The same sheaths may, however, be observed in D. 
alpestre and erixflorum, the former of which is distinguished 
by its small size and erect few-fid. peduncles; and 
D. erizflorum, which abounds in the Khasia Mts., and is 
common in Sikkim, by the short scapes, and much shorter, 
broader, green sepals and petals. 
There are copious specimens of D. denudans in the Kew 
Herbarium from various localities, extending from Kumaon 
to Sikkim at elevations of 4000-5500 ft. The specimen 
here figured was collected on oak trees near Mussoorie in 
Garwhal at 5—-6000 ft. elevation, and sent to the Royal 
Gardens by Mr. Duthie, Director of the Bot. Dept., 
N. India. It flowered in September, 1896. 
Descr.—Stems densely tufted, four to sixteen inches 
long, leafy, clothed with membranous sheaths ; internodes 
more or less pseudobulbous. Leaves two to three inches 
long, linear-oblong or oblong-lanceolate, acute, or tip 
2-toothed, pale green, membranous, deciduous, paler be- 
neath, and keeled by the midrib. Flowers in terminal and 
axillary very slender nodding many-fid. racemes three 
to six inches long; bracts lanceolate, shorter than the 
pedicels. Sepals spreading, lanceolate from an ovate 
base, subfalcate, finely acuminate, white or pale green. 
Petals shorter, and much narrower than the sepals, 
oblanceolate, white. Mentum short, incurved, tip rounded. 
Lip about one-third shorter than the sepals; side-lobes 
short, inciso-serrate, white or greenish, streaked with 
red; midlobe ovate, strongly recurved, sides incurved 
undulate, crisped and crenate, white or pale green, with — 
purple margins. Column entire. Anther with the margim 
minutely erose in front.—J. D. H. 
s. 
Fig. 1, Column and lip ; 2, column ; 3, anther; 4, pollinia :—AU/ enlarged. 
