Bu.popHyLtitum.] ORCHIDACEA. 189 
convolute throughout its length, broadly elliptic-oblong or subquad- 
rate when spread out; margins fimbriate-serrate except at the 
cuneate and clawed base; apex obtusely cuspidate; upper surface 
with a broad central grooved band villous towards the apex ; vein 
reddish-purple, bifurcating within the margin. Column nearly } in. 
long, its narrow elongate foot with a small ovate laciniate nectary 
at its base; mentum elongate, slightly curved and spur-like. 
Anther minutely papillose outside, its lip denticulate. 
Dehra Dun (Gamble) on trees. Flowers June-August. D1sTrre.: 
Garhwal Himalaya, up to 3,000 ft. Recorded also as occurring on 
the Nilgiri Hills. It is closely allied to D. macrostachyum, Lindl 
a species of 8. India and Ceylon. 
5. BULBOPHYLLUM, Thouars; Fl. Brit. Ind. v, 752. 
Epiphytic herbs. Pseudobulbs from a creeping rhizome, rarely 
mone, 1 (rarely 2)-leaved. Flowers on scapes from the rhizome 
and usually close to the pseudobulbs, solitary, capitate, umbellate, 
or in spikes or racemes. Sepals subequal or the lateral pair rather 
longer than the dorsal one and free or connate under the lip. 
Petals usually smaller than the dorsal sepal. Lip jointed on the 
foot of the column, mobile, small and usually much recurved. 
Column very short, often 2-aristate at the apex. Anther 2-celled ; 
pollinia 4, free, the two inner smaller (rarely suppressed).—Species 
nearly 200, chiefly in tropical and sub-tropical Asia, a few in Africa, 
America and Australia. 
B. polyrhizum, Lindl. Gen. and Spec. Orch. 53; Hk. in F. B. 
I. v, 767; Ann. R. Bot. Gard. Cale. V, pt. 1, 15, t. 23; K. and P. 
$d, viii, 70, t. 95 ; Duthie id. ix, pt. 2, 105. 
Rhizome thread-like, branching; pseudobulbs crowded or distant, 
globular or ovoid, smooth, base broad. Leaf 24 in. long, narrowly 
oblong, subacute, slightly narrowed to the sessile base, deciduous 
before the flowers open. Scape filiform, about 4 in. long, the sub- 
erect peduncle longer than the raceme, bearing 1 or 2 minute bracts ; 
raceme inclined. Flowers about 6, distant, secund, pale-yellow, } in. 
long ; floral bracts minute, oblong, about as long as the short stalk of 
ovary. Sepals spreading; dorsal one ovate, concave ; lateral pair 
longer, oblong-lanceolate, subacute, 3-nerved. Petals much shorter 
than the sepals, broadly ovate, acute, I-nerved. Lip stalked, 
deflexed, oblong, obtuse, scaberulous. Column shortly toothed, its 
foot short andslightly curved. Anther papillose, its lip acute. 
