56 ORCHIDS OF THE SIKKIM-HIMALAYA. 
nerved, elliptic-ovate, acute, slightly narrowed to the base, sub-terminal; length 4 to 7 
in, breadth 1:35 to 2 in.  Racemes from the upper nodes either of the leafy or leafless 
stems, pendulous, 8- to 10-flowered, crowded, 3 or 4 in. long. Flowers *'75 to 1 in. 
in diameter; floral bract minute, Sepals oblong, sub-acute. Petals broader, concave, 
obtuse. Lip sub-orbicular (when spread out) with a cuneate base and a short claw, 
concave, the apex irregularly and minutely lobed or sub-entire and emarginate, its 
upper surface smooth in the middle, with some radiating deeply-coloured stri» near the 
base, the anterior part with a broad pubescent belt round the edge. Column short 
and broad, with a transverse concavity near its lower end. Mentum very short, 
blunt. Anther conical; pollinia narrow, elongate. Bot. Mag., t. 6962; Veitch Man. 
Dendrob. 76; Rolfe in Gard. Chron. 1887, I, 607; Hook. fil. Fl. Br. Ind. V, 749. 
Sikkim; common in tropical valleys; Pantling No. 138; in flower during April 
and Мау. Khasia Hills, Assam. 
The sepals and petals are of rather a dingy yellow, with lines of a darker shade. 
The lip is orange-yellow with two patches of brown nerves near the base. All the 
colours are dingy and the flowers are not attractive, 
Prate 78.—Dendrobium sulcatum, Lindl. А plant, of natural size. Fig. 1 a flower, 2 lip, 
3 column and its foot, the anther im situ, 4 the anther, seen from the side, 5 pollinia; ай 
enlarged. 
26. DENDROBIUM DENSIFLORUM, Wall. Cat. 2000. 
Stems clavate, terete or obscurely 4-angled, erect, slightly swollen at the nodes, 
12 to 18 in. long. Leaves coriaceous, oblong-lanceolate to ovate-lanceolate, collected near 
the apex of the stem, acute, slightly narrowed to the base; length 4 to 6 in., 
breadth 1 to 2 in. Racemes 6 to 10 in. long, pendulous, with many densely — 
flowers; the peduncle stout, short, with large sheathing bracts at its base. Flowers 
membranous in texture, 1 to 15 in. across; floral bract very large, oblong, nerved, 
membranous, covering the bud, revolute. Sepals ovate-elliptic, obtuse, concave. Petals 
broader than the sepals, ovate-orbicular, the edge slightly егове. Lip orbicular-rhom- 
boid, convolute in its basal half, the apical half spreading, the whole of the upper 
surface pubescent, the edges slightly revolute and shortly fimbriate, the base abruptly 
narrowed to a short straight claw. Column broad, with a concavity at its base. 
Mentum large, sub-globose. Anther conical; pollinia elongate. Capsule fusiform, 1°75 to 
9:95 in. long. Lindl. in Wall. Pl, As. Rar. I, 34, t. 40; Gen. and Spec. Orch., 90; 
Bot. Reg. t. 1828; in Journ, Linn. Soc. II], 7; Paxt. Mag. Bot. V, t. 121; Bot. 
Mag., t. 3418; Hook. fil. Fl. Br. Ind. V, 748; Fl. des Serres, %, 1397; Veitch Man. 
Dendrob., 80, with fig. D. thyrsiflorum, Reichb. fil. in Ill. Hortie. XXII, t. 207; Veitch 
Man. Dendrob, 80, with fg.; Gard. Chron. 1877, І, 653, fig. 105. Epidendrum Dumsattei, 
_ Herb. Herm. (fide Hooker). 
Sikkim; common in tropieal valleys, ascending to 4,000 feet; Pantling No. 119; 
in flower during April and May. Westward to Nepal and eastward to the Khasia 
Hills; also in the hill ranges of Burmah. 
The sepals and petals of this beautiful species, as it occurs in Sikkim, are in- 
variably of a pale yellow, the lip being of a rich orange-yellow colour, paler towards 
the margins Тһе unexpanded racemes have a curious cone-like appearance, which 
