TO LOWER SIAM. 203 



Gastrochiltcs luridus, Bidl. Lankawi (Cuttis). Endemic. 



G. Curtisii, Baker. Lankawi, Limestone rocks (Curtis). 

 Endemic. 



Gastrochilus acutus, n. sp. 



Plant with the habit of G. Curtisii, forming a tuft. 

 Leaves distichous, sheaths closely marbled with red, 3 

 inches long, petiole 3 to 4 inches long, blade ovate, elliptic, 

 acuminate, base broad, rounded, 10 inches long, five inches 

 across, dark green above, ribbed, paler, sparingly hairy with 

 white hairs beneath. Flowers in a central cone of lanceo- 

 late, acute bracts, marbled like the leaf sheaths about 2 

 inches long, Flowers rather small. Coralla tube cylindric, 

 white, projecting 1 inch, lobes lanceolate, acuminate, 

 acute, half an inch long, white, Stami-nodes about half 

 as long, narrowly oblong, obtuse. Lip shorter than the 

 sepals, claw short, narrow, white with two deep pink 

 streaks, Limb half an inch across, canary yellow, obovate, 

 crenulate at the apex which is narrowed and hortly bifid, 

 a knee of two elevated veins on the disc. Anther white, 

 small, connective, prolonged as long as the stigma into a 

 retuse limb. 



Setul Batu Bunga, flowered in the Singapore botanic 

 gardens, July, 1910. 



Allied to G. Curtisii of Lankawi differing in its more 

 glabrous leaves, shorter staminodes and quite different lip. 



Costus speciosus, var. argyrophyllus. A small weak form. 

 Eerlis, Bukit Hangat Besih. Distrib. of species Indo- 

 , ^Malaya. 



Hedychium Gomez ianinn; Wall. Kopah, (Long in Curtis 

 collection). Distrib. Tavoy and Tenasserim. 



Zingiber spectabilc, Griff'. Perlis, woods at Ginting Kabok. 

 Distrib. whole peninsula as" far South as Malacca, and 

 Sumatra. 



R. A. Soc, No. 59. 19" 



