NEW OK RAKE MALAYAN PLANTS. 135 



Flowers ^ inch across. Sepals linear obtuse fleshy o 

 nerved. Petals shorter. Lip less than half as long as 

 the sepals narrow entire fleshy base oblong with two 

 fleshy raised keel, apex subspathulate rounded thin. 

 Column very short, upper margin ohlong as long as the 

 r est of the column, stelidia from near the anther base 

 lanceolate acuminate apex subulate as long as the clinan- 

 drum margin. Capsule ^ inch long and nearly as wide 

 rounded triquetrous almost cone-shaped. 



Pahang: on the Tahan River in fruit; Sumatra; 

 Sungei Kelantan; Siak (Ridley). 



Certain]}' near D. aumntiacum, Bl. but distinct in the 

 very large oblong crest to the column, and spathulate lip. 

 I believe the Pahang plant is identical with the Sumatran 

 one though it is only in fruit. 



D. intermedium, n. sp. 



Stems long woody creeping ^ inch through, pseudo- 

 bulbs remote l|-3 inches apart, cylindric rather slender 

 1 inch long. Leaves coriaceous elliptic obtuse 1^-2 

 inches long, by 1-1 J inch wide, petiole \ inch long. 

 Racemes slender 4 inches long, 2 to 5 together close to a 

 pseudobulb7 with numerous lanceolate papery bracts at 

 the base, floriferous to the base. Rachis black pubescent. 

 Bracts (floral) minute ovate acute papery as long as the 

 pedicels. Pedicels ^ inch long. Flowers pale yellow 

 very small. Sepals elliptic apices rounded. Petals nar- 

 rower and shorter. lip shorter than the sepal | its 

 length, linear oblong entire, with two large keels in the 

 centre. Column rather small, stelidia linear acute erect 

 longer than the column, back of clinandrium ovate. 



Sarawak: Mt. Matang, June 1907 (Hewitt). 



This species is allied to D. aurantiacum, Bl. of Java, 

 and D. brevilabratum, Pfltzer collected at Barain by 

 Hose. The foliage is quite different from the lanceolate 

 leaves of the former, which it resembles in its nigro 

 pubescent rachis that of D. brevilabratum being glabrous, 



fc. A, Soc, No. 5°i r 9<-$, 



