262 MR. HENRY RIDLEY ON ORCHIDEZ AND 
pallidiora ; mentum 3 poll. longum, angustum, complanatum, 
apice dilatatum uncatum subacutum. Petala sepalis multo 
longiora latiora, obovata obtusa. Labellum cum petalis squi- 
longum, 3 poll. latum, basi angustum canaliculatum, dente brevi 
acuminato retrorso addito; lamina oblonga, alba violaceo- 
punctata, apice dilatata emarginata minus violaceo-punctata ; 
discus a lineis 3 punctorum violaceorum percursus. Columna 
superne multum incrassata; pes longus canaliculatus; stelidia 
brevia, erecta. St¢gma profundum ; margines multum incrassati. 
Hab. Siam: Kopah, Curtis! (1894) v.v. 
A very charming species of the Pedilonum section with large 
rosy flowers, the petals a good deal larger than the sepals, the 
mentum long and narrow, dilated towards the apex, which is 
then narrow and decurved. The lip has a broad spade-shaped 
blade with a terminal notch. It bears a short white retrorse 
tooth in the lower part of the narrow claw. The whole flower 
is rosy, deeper coloured at the apex of the petals and mentum, 
which has a reddish tint. The lip is white with three lines of 
violet dots and other dots scattered over it; the apex is also 
violet-mauve. 
Denprosium (§ Pepinonum) LAMELLATUM, Lindl., Glen. et Sp. 
Orch., p. 89. 
Hab. Singapore: Changi! In damp, swampy woods on tree 
stems. 
Selangor: Kwala Lumpur ! 
Pahang: Kwantan! 
Perak: Scortechini. 
Not a very rare plant, though certainly local. It is very 
widely distributed, occurring from Tenasserim to Java. The 
stems are remarkably thin for their height and breadth. 
The flowers open white but soon turn ochreous yellow, as 
figured in the ‘ Botanical Register’ (1844), t. 53. It seems to 
me this should be placed with Pedilonum rather than with 
Eudendrobium. 
D. (§ Pepitonum) sanGuinoLentuM, Lindl., Bot. Reg. (1842) 
Misc., p. 62. 
Hab. Penang Hill: on trees in the Cypripedium Valley, 
2,000 feet alt. 
Kedah: Kedah Peak! alt. 3,000 feet, abundant on low 
trees and stumps. 
