` DIPLOMETIS. | 337 
Sikkim, in the Sin-ga-le-la range, elevation about 12,000 feet; in flower during 
July; Pantling No. 348. Chumbi valley іп Bhotan. Lachong valley; б, Gammie 
No. 1031.  Esa-naugi in Nepal. | 
The colour is green throughout. 
Piate 449.— Horminium orbiculare, Hook. fil. A plant, of natural size. Fig. 1 bract, ovary and 
flower, 2 apex of ovary and column, showing the pollinia i» sifu and the stigma, 3 the petals, 4 lip, 
5 section of spur, 6 pollinia; ай enlarged. 5. 
89. Diplomeris, Don. 
Small terrestrial deciduous herbs, with or without tubers. Leaves few, large, oblong 
or ensiform, hairy or glabrous. Flowers one or two, large. Sepals sub-equal, free, 
lanceolate, spreading. Petals much larger than the sepals. Lip adnate to the base of 
the column by a long claw, its limb spreading, very broad, entire or minutely 3-lobed at 
the apex, with a long spur, Column very short; infertile stigma large, erect, membranous, 
standing in front of the anther-cells. Anther-cel/s parallel, with very long tubes extending 
horizontally forwards by the sides of the column and projecting in front of it; pollinia 
sub-cylindric, curved ; the caudicles very long, cylindric, curved; glands minute, discoid. 
Stigmas two, much elongate, oblong, parallel, projecting downwards and forwards above 
the claw of the lip. Species two, both Indian. 
DIPLOMERIS HIRSUTA, Lindl, Gen. and Spec. Orch., 331. 
Tuber globose; stem very short, l-flowered. Leaf solitary (with sometimes the 
rudiment of a second), radical, pendulous, oblong, sub-acute, the base minutely cordate, 
sessile, bearing stiff scattered hairs on both surfaces ; length 2 to 3:5 in., breadth :75 to 
1:15 in. Flower 1:25 to 2 in. long and :9 in. to 14 in. across in front; floral bract 
ovate, acute, sparsely pubescent like the ribbed ovary. Sepals ovate-oblong, sub-acute, 
much smaller than the petals. Petals orbicular-reniform, the apex slightly acute. Lip 
somewhat longer than the sepals, sub-orbicular, abruptly clawed at the base; the apex 
broad, emarginate, mucronate in the sinus from the projection of the thick midrib; 
upper surface smooth, the midrib broad and somewhat thickened; spur infundibuliform at 
the mouth, otherwise cylindric, slightly compressed, curved, pubescent inside, three or 
four times as long as the ovary. Column short; the infertile stigma very large, thin, 
erect, ovate-rotund with irregularly lobed edges, its surface concave. Anther-cells lying 
one on each side of and behind the imperfect stigma, triangular, with very long horizontal 
forward-pointing tubes; staminodes small, oblong, rugulose, each borne at the lower- part 
of the outer surface of the anther-cell; pollinia cylindric, blunt, curved; the caudicles 
very long and curved; glands small, discoid. Fertile stigmas two, oblong, blunt, lying 
parallel to and connate with each other by their inner edges below the orifice of the 
spur and overhanging the claw of the lip. Hook. fil. Fl. Br. Ind VI, 167, Diplochilus 
hirsuta, Lindl. in Wall. Cat. 7065; in Bot. Reg. under t, 1499, 
Sikkim, in the valley of the Teesta, at elevations of about 1,000 to 1,400 feet; on 
sandstone rocks; in flower from June to August; Pantling No. 184.  Bhotan; Lister, 
Gammie. Nepal; Wallich. 
Axx. Бот. Bor. Garo., Carcurra, Vou. VIII. 
