36 NEW OR RARE MALAYAN PLANTS. 



S. brachystachys, n. sp. 



Stem short, 4 inches long very thick. Leaves lorate 

 coriaceous, thick 8 inches long, 1£ inch wide, deep green, 

 apex bluntly unequally lobed. Panicles short 3 branch- 

 ed, branches 1 inch long many flowered. Bracts very 

 short ovate acute. Sepals oblong obtuse £ inch long. 

 Petals shorter narrower linear, all yellow with a central 

 reddish bar. Lip, side lobes large oblong ending in a 

 cusp, midlobe ovate obtuse violet, spur short rounded 

 scrotiform white, a broad oblong fleshy bar over the 

 mouth of the spur, and a short conic boss in the centre 

 of the lip between the side lobes. Column thick, wings 

 incurved white, anther broad long-beaked. Pollinia 

 elliptic curved, on a long linear pedicel with a small disc. 



Sarawak : Tambusan, fl. H. B. S. 1905. 



This plant is not rarely brought from Sarawak by 

 native collectors. 



S. validum. 



Roots copious thick corky, stem stout 4 inches long ^ 

 inch through. Leaves coriaceous lorate 6 inches long j 

 inch through unequally bilobed. Panicles from lower 

 axils 9 inches long slender, peduncle 3 inches long, 

 branches 2, upper one longest. Flowers numerous but 

 remote. Bracts ovate acute small. Pedicels ^ inch 

 long. Sepals lanceolate subacute. Petals much small- 

 er, dull yellow, with reddish purple blotching in centre. 

 Lip shorter, spur nearly as long as the ovary straight 

 cylindric blunt, side lobes short oblong rhomboid blunt, 

 midlode longer, short ovate fleshy callus in mouth of 

 spur fleshy quadrate large decurved. No septum in 

 spur or callus. Column short, anther 4 celled ovate. 

 Pollinia transversly bilobed, pedicel oblong linear, disc 

 oblong truncate column wings short incurved. Rostel- 

 lum arms horizontal oblong truncate with a minute pro- 

 cess at the upper edge. 



Perak : Kamuning (Machado) July 10, 1905. 



Certainly allied to S. pallidus. 



Jour. Straits Branch 



