260 MR. HENRY RIDLEY ON ORCHIDEZ AND 
longi, graciles, patentes. Flores pedicellis longiores. Sepalum 
posticum 1 poll. longum, ovatum acatum, lateralia paullo 
latiora; mentum 2 poll. longum, pendulum, cylindricum, 
clavatum. Petala sepalis breviora, late ovata. Labellum longe 
anguste unguiculatum, apice dilatatum, margines incrassati; 
lamina transversa carnosa, apice tenuiter rotundata apiculata, 
margo denticulatus. Columna lata; clinandrium profundum ; 
margines elevati; stelidia tenuia, lata. Anthera pileata, apice 
conica; caudicula longa; clinandrii margo elevatus ; rostellum 
latum obtusum. Stigma profundum; columne margines 
multum elevati. 
Hab. Legeh: Tomoh, A. Machado ! v.s. 
A curious species, allied to D. brievianum, Rolfe, with greenish- 
yellow flowers. The lip has a very narrow linear base, adnate to 
the mentum, enlarging gradually towards the apex till near the 
end, where the margins are thickened and fleshy, and a fleshy 
transverse bar connects them. The epichil is deflexed, it is 
quite thin and rounded when spread out, and denticulate. The 
sides of the cclumn above the very slender foot are raised into 
fleshy wings. The anther is remarkable for being attached by 
the very apex to an unusually long filament, which takes its 
rise from the base of a triangular process of the clinandrium 
margin, such as one generally considers to be the filament 
itself. 
Denprosium (§ Peottonum) Aiawe, Ridl., sp. nova. Caules usque 
ad 2 ped. longi, 4 poll. crassi, canaliculati. Folia 3 poll. longa 
q poll. lata, lanceolata subacuta, coriacea. Racemi } poll. longi, 
e caulibus defoliatis orti; bractess breves, lanceolata acute ; 
pedicelli cum ovario 4 poll. longi, filiformes. Flores plures, 
lete rosei. Sepalum posticum } poll. longum oblongum 
obtusum, lateralia lanceolato-ovata subobtusa curva ; mentum 
¢ poll. longum, teres, obtusum, in medio flexum. Petala 
sepalis breviora latiora tenuiora, obtusa.  Labellum spathu- 
latum, basi anguste lineare; lamina obovata, in margine 
laciniata; callus nullus. Colwmna brevis. Anthera hemis- 
pherica; caudiculus longus; stelidia erecta, triangularia. 
Hab. Perak: Maxwell’s Hill, Larut Hills ! 
This much resembles D. cornutwm, Hook. f., but has smaller 
flowers, with the edge of the lip lacerate. The flowers are of @ 
beautiful mauve colour. It grows sometimes very high up oF 
