NEW OR RARE MALAYAN PLANTS. 143 



Neottieae. I have recently (April 17, 1907) rediscover- 

 ed the plant in Singapore, in dense forests by the side of 

 a stream at a spot formerly known as Stagmount, and 

 have thus had an opportunity of examining the plant 

 again. The Singapore plant differs from the ones found 

 in Malacca in having the lip nearly quadrate with a 

 central tooth and hardly distinctly bilobed, the limb 

 white and only the claw violet. The rostellum very small 

 in the Malacca plant seems quite absent and the curved 

 sausage-shaped pale flesh-colored pollinia have no trace 

 of any disc at all. This plant was evidently destined to 

 be self-fertilised as the pollinia slip into the stigma with 

 the greatest ease. The filament so long in the Malacca 

 plant is quite short in the Singapore one. For the present 

 it may be preferable to consider the Singapore plant as a 

 variety, Singaporensis of the species. 



Xow in the light on the plant shown by this variety, 

 we can more easily determine its affinity, and that is I 

 think with the genus Gastrodia, to which it is allied in 

 its stout rhizome, its connate perianth, (for the whole 

 of the perianth is connate at the base, though divided into 

 two lips, one consisting of the sepal and two petals, the 

 other of the two lower sepals), and the form of the pol- 

 linia. Gastrodia differs in the almost completely tubular 

 flower, and the very short stelidia. 



Lencolena ornata var. Singaporensis. 



Lip subquadrate with a median tooth hardly bilobed, 

 limb white, base/ violet. Rostellum quite absent. Pol- 

 linia free 4 with no disc. Filament of anther much 

 shorter. 



Damp sandy woods on a stream bank at Stagmount, 

 Singapore, flowering in April 1907. 



ZlNGIBEKACEAE. 



Geocliaris, n. gen. 



Creeping herbs with rather slender rhizomes throwing 

 up leafy stems and inflorescences at intervals. Leaveg 



R. A. Soc, No. 50, IQ08. 



