248 MR. HENRY RIDLEY ON ORCHIDEZ AND 
This plant is most nearly allied to D. grande, Hook.f. It 
has the same thin-textured foliage and broad stem. The 
flowers have an unusually long mentum for a plant of this 
section, and look like those of some very small Pedilonum. 
Mr. Curtis describes them as dull yellow,—Dr. Keith, as 
having the petals and sepals purplish green, the lip greenish 
yellow with bright pink borders. The lip has a narrow linear 
base, and gradually widens upwards till it ends in a rounded 
bilobed blade, the margins of which are very obscurely toothed. 
There is no caruncle or callus on the lip, but the end is thickened 
and fleshier than the rest of the flower. 
Denprosium (§ Aporum) Leonts, Reichb. f. in Walp. Ann., v1. 
p- 280. Aporwm Leonis, Lindl., Bot. Reg. (1840) Misc., p. 59. 
A common plant, growing on trees low down in orchards, 
dry forests, and open places, flowering irregularly all the year. 
The leaves are dark, dull green. The flower, which is strongly 
scented of vanilla, is yellowish, thickly dotted with purple 
outside and cream colour or brownish within, the lip paler 
above, with a reddish central bar beneath, dotted with purple. 
It is usually more or less emarginate at the apex and ciliate. 
The column is rather short, yellowish, with an orange spet at 
the base. The anther is rather large, cap-shaped, truncate. 
The stigma very small. Pollinia oblong orange. 
Hab. Singapore: Selitar! Toas! Tauglin! Pulau Tekong! 
(in Johore Strait.) 
Johore: Batu Pahat ! 
Rhio: Native collector ! 
Malacca: Merliman ! Sungei Bakru Ulu ! 
Selangor: Seppan ! 
Pahang: Kwala Pahang ! Kota Glanggi ! 
Perak: Scortechini. 
Kedah: Yan! 
Cochin-China: Saigon, Haffner ! 
D. (§ AporuMm) prostratum, Ridl., sp. nova. Caules c. pedales, 
procumbentes, ramosi, radicati. Folia } poll. longa, ferme 
7 poll. lata, oblongo-triangularia, subacuta vel obtusa, carnoso- 
coriacea, rugosa, alro-viridia seepe purpurascentia. Flores lis 
D. Leonis similes sed minores, pallide flavi haud raro rufo-tincti, 
sub expansione odori. Sepalum posticum ovatum obtusum, 
lateralia multo majora ovata subfalcata; mentum breve, 
—— =” Fi 
