THE ORCHIDOLOGY OF INDIA. 7 
87. D. RABANI; pseudobulbis subcylindraceis monophyllis secus caulem 
imbricatis, folio oblongo obtuso, floribus parvis sessilibus terminalibus, 
sepalis petalisque acutis equalibus, mento brevi, columna bicamerata, 
labello basi excavato lsevi lamina intus villosa medio tuberculata. 
Khasia, in Mr. Raban's garden, at 4000 feet, J. D. H. (25). 
* Flowers small, white, sweet-scented." I have been unable to 
ascertain the form of the lip; but the other characters are amply 
sufficient to distinguish this. 
** Flores laterales. Labellum margine continuum. 
Some of the supposed species of this section are probably 
founded on insufficient grounds. .D. Farmeri (Bot. Mag. t. 4659), 
for instance, is scarcely distinct from D. chrysotorum (Bot. Reg. 
1847, t. 36), although its flowers are tinged with pink, and its lip 
less abundantly fringed. In like manner my D. palpebre (Journ. 
Hort. Soc. v. 33) may be a white-flowered variety of D. Griffith- 
ianwm (Bot. Reg. xxi. 1756). Тһе only species among the col- 
lections of Hooker and Thomson is— 
88. D. densiflorum, Wallich, Plant. As. rar. t. 40; Bot. Mag. t. 3418. 
Sikkim, at 1000—5000 feet of elevation, J. D. H. (7 and 150); Khasia at 
2000—4000 feet, J. D. H. & T. T. (7). 
89. D. EUPHLEBIUM (H. G. Rchb. MSS.) ; caule angulato clavato basi 
angustato, foliis geminis membranaceis ovali-lanceolatis, flore solitario 
laterali, labello oblongo unguiculato concavo emarginato cordato, venis 
ab axi carnoso rectangulis divergentibus. 
Java, T. Lobb. 
A very distinct plant, remarkable for its clavate angular stem 
tapering to the base, and solitary lateral flower. 
*** Labelli lobus medius stuposus (Desmotrichum). 
The species hitherto known are wholly insular. 
$ V. Ногоснвтва. 
* Fasciculata ; floribus solitariis, fasciculatis aut breviter 
racemosis. 
In proposing now, for the first time, to collect into one group 
all the distichous-leaved yellow species, I have no character to 
rest upon except the uniformly yellow colour of all parts of the 
flower, a colour disappearing somewhat in D. aureum, whose 
yellow almost fades into white in the variety called D. rhombeum, 
just as that of D. Griffithianum disappears in its variety Palpebre. 
