62 ORCHIDS OF THE SIKKIM-HIMALAYA. 
Sikkim; common in tropical valleys; in flower. during Мау; Pantling No. 266. 
Khasia Hills, Upper Burmah, Java; the Nilgiri Hills and Western Ghats. in Southern 
India; also in Ceylon. : 
The. difficulty of understanding the structure of the lip from an examination of 
dried specimens no doubt in part accounts for the number of names which have 
been given to this species. The foregoing synonymy has, with the exception of 
D. plicatiie, been taken verbatim from Sir Joseph Hooker’s “ Flora of British India”; 
and for the latter synonym we are also indebted to Sir Joseph. The flowers of this are 
white, the side lobes of the lip and the column being pink with purple spots; the apex 
of the lipis pale green. . 
Рілте 86.—Dendrobium Macraei, Lindl. Part of a plant, of natural sise. Fig. 1 flower, front view, 
2 bract, stalked ovary, column and lip, seen from the side; 3 lip, upper surface, 4 column and its foot 
and the anther in situ, 5 anther, 6 pollinia; al? enlarged. 
34, DENDROBIUM ROTUNDATUM, Benth. in Benth. and Hook. fil, Gen. 
| Plantar., ІП, 499. 
Rhizome pendulous, woody, :2 in. thick, sheathed, bearing narrowly ellipsoid or ovoid 
pseudo-bulbs 3 or 4 iu. apart, 1 to 1% in. long, each partly covered by scarious sheaths. 
Leaves two, elliptic-oblong, sessile or shortly petioled, notched at the apex; length 2*5 
to 4 in. breadth 1 to 1:25 in. Flowers 15 in. across; floral bracts membranous, 
often nearly as long as the stalked ovary. Sepals, ovate-lanceolate, spreading; the lateral 
pair falcate, rather fleshy. Petals somewhat smaller than the sepals. Lip obovate- 
oblong in general outline, sessile ; the side lobes rounded, the disc between them with 
three unequal lamelle ; the anterior lobe sub-reniform, its edges thin and undulate, 
its upper surface with a large triangular fleshy thickening. Column wide at the lower 
end, broadly winged. Sarcopodium | rotundatum, Lindl. Fol. Orchid., Sarcopodium, 2; 
Hook. fil, Fl. Br. Ind. V, 712. Bolbophytlum rotundatum, Reichb. fil in Walp. Ann. 
VI, 214. | | 
Sikkim ; at elevations of from 6,000 to 7,000 feet ; Griffith, Hooker, Lister, Gamble 
and others; Pantling No. 69. Naga Hills, Prain; in flower during April. 
The flowers are of а pale chestnut brown. The rhizomes are pendent. Its nearest 
ally is D. fuscescens, Lindl, from which this differs in having broader leaves and 
much shorter. pedicellate ovaries, broader petals, and a lip with a smaller anterior 
lobe. | | ; | 
Prarg 87.— Dendrobium rotundatum, Benth. Terminal part of a plant, of natural size. Fig. 1 
а flower with its stalked ovary and floral bract, of natural size, 2 column and lip, seen from the side, 
З lip showing the lamelle on its basal part and the triangular thickened area оп its anterior lobe, 
seen from above, 4 transverse section of the lip near the base, showing the three Јаше], 5 column 
showing the winged edges, 6 anther, 7 pollinia ; all enlarged. 
85. DENDROBIUM FUSCESCENS, Griff. Notul. ІП, 308; Ic. Pl. Asiat., t. 309. 
| Rhizome 125 in. thick, branching, bearing several inches apart narrowly ovoid pseudo- 
bulbs 1 in. long, each clothed with several tightly-fitting sheaths. Leaves two, narrowly 
oblong-lanceolate, tapering to each end, sessile or sub-sessile, notched at the apex, 
