578 G. King & R. Pantling— New Indo-Malayan Orchids. [No. 3, 



Some new Indo-Malayan Orchids. — By G. King and R. Pantling. 



In two papers recently read before the Society we gave descrip- 

 tions of about sixty new species of Orchidacese from the Sikkim- 

 Himalaya. In the present paper we offer descriptions of forty-six 

 species from other parts of the Indian Empire which we believe to be 

 hitherto undesoribed. In order to assure ourselves of their novelty 

 we sent either a specimen or a careful drawing of each of them to the 

 Royal Herbarium at Kew for comparison. And to Mr. W. T. Thiselton 

 Dyer, F.R.S., C.M.G., Director of that Institution, our thanks are due 

 for his courtesy in having the comparisons most promptly and carefully 

 made by Mr. R. A. Rolfe of the Royal Herbarium, who for many 

 years has made Orchids a special study. 



MALAXIDEJE. 



Oberonia Gammiei, n. spec. Stems very short, not tufted. Leaves 

 ensiform, obliquely acuminate, slightly falcate. Inflorescence slender, 

 decurved from the middle, longer than the leaves ; the peduncle winged 

 in its lower half, ebracteate, or with very few bracts near the raceme ; 

 the raceme sparsely-flowered, its rachis more slender than the peduncle; 

 floral bract equalling the stalked ovary, oblong, blunt, erose. Flowers 

 •05 in. long, brown, with pale margins. Sepals ovate, acute, entire. 

 Petals ovate- lanceolate, erose, reflexed and lying on the ovary like the 

 sepals. Lip slightly exceeding the sepals in length, broadly ovate in 

 general outline, deeply concave, 3-lobed ; lateral lobes long, narrow, 

 coarsely serrate, their apices acute and pointing forwards ; the terminal 

 lobe rather small, transversely oblong, sub-entire ; its apex truncate, 

 divided into two short incurved sub-quadrate lobules by a sub-quadrate 

 sinus. Clinandrium much wider than the anther. Pollinia elongate, 

 obovoid. 



In the Sunderbans ; Lower Bengal ; on trees ; G. A. Gammie and 

 R. L. Heinig, No. 92. At Rangamatia in the Chittagong Hill Tracts ; 

 Gamble, No. 6633 ; in flower from December to March. 



This species is allied to 0. iridifolia, Lindl., and to 0. recurva, Lindl. 

 It has, however, a much fewer-flowered raceme than 0. iridifolia ; the 

 lip of this is concave, more distinctly three-lobed than in 0. iridifolia f 

 while the lateral lobes in this are serrate, not pectinate, and the terminal 

 lobe is sub-quadrate with ( except for the apical sinus) almost entire edges. 

 This is a much larger plant than 0. recurva, from which it also differs 

 in the lip, which in that species is flat with large rounded crenate side 

 lobes ; while the terminal lobe is rather deeply divided into two oblong 

 blunt lobules. 



