38 J. F. Duthie — Some new species of Orcliideae. [No. 1, 



Western Himalaya, near Mussoorie, on the soufchern face of the 

 Park Hill, up to 6,000 feet, P. W. Mackinnon ; also on the Kalanga Hill 

 in Dehra Dun, 2-3, COO feet, Mackinnon' s collector. 



Although most nearly related to M, Wallichii, the very different 

 leaves at once distinguish this plant from any of the many forms of that 

 species. It has also much smaller flowers and a very differently shaped 



lip. 



2. Oreorchis Rolfei Duthie, n. sp, 



Pseudo-hulh globose. Leaves two or three, about 2 dm. long by 1 to 

 1'5 cm. broad, deflexed at the tips. 3-5-nerved, plicate. Scape about as 

 long as the leaves, rising from near the top of the pseudo-bulb. Peduncle 

 firm, with 3 or 4 close-fitting tubular sheaths. Raceme many-flowered, 

 about 6"7 cm. long. Flowers sessile, rather crowded, about l'4cra. across. 

 Floral bract minute, less than half the length of the ovary. Sepals 

 about equal, r4! cm. long, lanceolate, subacute, pale yellowish-green, 

 slightly spreading. Petals as long as the sepals, bat narrower, oblan- 

 ceolate, subacute, pure white with a few purple blotches. Lip obovate- 

 oblong (when spread out), narrowed at the base into s short sac-like 

 claw, side-lobes linear, fleshy, white, half the length of the mid-lobe ; 

 mid-lobe deflexed, white, and like the petals blotched with purple, 

 apex with a shallow sinus, base of disc with a prominent fleshy oval 

 channelled callus. Column curved, dilated at the base, concave in 

 front. Pollinia globular, united to a short thick conical caudicle. 



Western Himalaya, on Nag Tiba in Tehri-Grarhwal, at an eleva- 

 tion of about 8,000 feet. Mackinnon's collector. Flowers in June. 



This species is* most nearly allied to 0. micrantka, but the spike is 

 shorter and the flowers are more crowded ; it differs also by having a 

 saccate base to the lip, and both the lip and petals are pure white 

 spotted with purple. The callus at the base of the lip is oval and not 

 linear. I have much pleasure in naming this orchid after Mr. R. 

 A. Rolfe, of the Royal Herbarium at Kew. 



3. CiRRHOPETALUM HoOKERi Duthie, n. sp. 



Caespitose. Pseudo-bulbs crowded, ovoid or nearly round, 1-5- 1-7 

 cm. long. Leaves solitary on each pseudo-bulb, 3-4 cm. long and 1-1-2 

 cm. broad, linear-lanceolate or falcatelyso, tapering to the base, hardly 

 petioled, notched at the obliquely obtuse or acute apex, coriaceous, dark 

 green above, paler beneath, margin narrowly hyaline. Scape equalling 

 or exceeding the leaves, issuing from near the base of the pseudo-bulb> 

 lower portion enclosed within sheaths. Flowers 3-4, umbellate. Floral 

 bracts 5 m. long, lanceolate, acuminate, membranous, shorter than the 

 long-stalked ovary, margins incurved. Dorsal sepal 5 m. long, quite 



