50  ORCHIDS OF THE SIKKIM-HIMALAYA. 
the terminal lobe orbicular with undulate edges, puberulous on both surfaces, the 
dise sub.villous, Column broad at the apex, the foot tapering, flat in its upper part; 
the nectary large, its upper margin erose and its lower with two calli; the centre 
occupied by a thickened line. Anther minutely рарШове. Lindl. in Bot. Reg. 1844, 49; 
in Journ. Linn. Soc. III, 12; Bot. Mag., t. 6199; Heichb. fil. in Gard. Chron. 1875, 
I, 305, figs. 57, 58; 1881, II, 625, fig. 126; Veitch Man. Dendrob. 17; Hook. fil. Fl. 
Br. Ind. V, 738. D. mesochlorum, Lindl. in Bot. Reg. 1847, under t. 36; Paxt. Fl. 
Gard. Vol. I, 63, fig. 43. D. Egertoniæ, Lindl, l. с.; Paxt. Mag. 1. c. fig. 44. 
Sikkim; in tropical valleys, up to elevations of 4,000 feet; Pantling No. 267; 
а common plant; flowering during June. Westward to Gharwal and eastward to 
Bhotan, Sylhet and Burmah. | 
One of the most charming of Indian Dendrobes. The flowers smell of violets; 
the sepals and petals are white tipped with violet, and the lip is white with a purple 
spot near the apex and a flush of greenish yellow towards the middle; the upper part 
of the eolumn is green, the lower part of it and the whole of the mentum are violet, 
This species is pendulous, while D. íransparens, its near ally, grows erect, 
Pirate 69.— Dendrobium amenum, Wall. A plant, of natural size. Fig. 1 bract, stalked ovary 
and lip, in profile, 2 lip, 9 columh and its foot, 4 vertical section of the sac formed by the union 
of the hp with the produced foot of the column, 5 anther, 6 pollinia; ай enlarged. 
16 DENDROBIUM TRANSPARENS, Wall. Cat. 2008-1. 
Stems slender, erect, with a narrow thickening at the nodes, 12 to 24 in. long. 
Leaves linear-lanceolate, the apex acute and oblique; length 3 or 4 in., breadth °35 to 
“5 in. Flowers 1'5 in. across, in pairs from the leafless stems; floral bract broadly 
lanceolate, scarious, sometimes “5 in. long, but always much shorter than the stalked 
ovary. Sepals subequal, lanceolate, acute. Petals about the length of the sepals, but 
ovate and with blunter apices. Гір as long as the sepals, broadly elliptic-obovate 
(when spread out), clawed at the base; the side lobes broad, erose and convolute; the 
terminal lobe sub-orbicular, undulate; the upper surface pubescent. Column with two 
horn-like processes at the apex, the foot narrowed and with a small nectar-secreting 
cavity at its apex. Mentum short, conic, obtuse. Anther puberulous; its lip truncate, 
entire. Lindl. Gen. and Spec. Orchid., 79; in Bot, Regist. 1844, Misc. 62; in Journ. 
Linn. Soc, III, 12; Bot. Mag. t. 4663; Paxt. Fl. Gard. I, 134, t. 27; Veitch Man. 
Dendrob. 81; Hook. fil. Fl. Br. Ind. V, 738. D. Henshalli, Reichb. fil. in Bonplandia, 
ПІ, 226. Dendrob. Griff. Notul. 198, No. 1135, p. 198. 
Sikkim ; common at the base of the range, and ascending to elevations of 3,000 
feet; Pantling No, 79; in flower during May. Westward to Kamaon and eastwards 
to Assam and the Khasia Hills; also in the Chittagong Hills. 
The petals are white, occasionally suffused with pink; the lip has a large purple 
patch along its middle, with purple lines towards the base; the column is greenish- 
yellow with a purple patch at its lower end, and the stigma has red lines round 
it. Although the expression side lobes has been used in describing the convolute 
part of the lip, there are no distinctly marked side lobes. 
Prate 70.— Dendrobium transparens, Wall. A plant and Fig. 5 a MN of natural size. -— 1 
lip, 2 column and its foot, 3 anther, 4 pollinia; all enlarged. 
