APOSTASIACEZ OF THE MALAY PENINSULA. 257 
the lip is covered with a pulverulence arranged more or less in 
lines, with a median channel down the centre. The capsule is 
an inch in length and half an inch thick, pear-shaped and 
oblique. 
Denprosium (§ DisticHoPHYLL®) PANDANETI, Ridl., sp. nova. 
Caules elongati, ramosi; rami 8-12 poll. longi; radices pauce. 
Folia 3 poll. longa, 2 poll lata, oblanceolata acuminata inequa- 
liter biloba, tenuia, herbacea, pallide flavo-viridia; vagine 
subteretes, carinatew, virides, ore integro ? poll. lato. Racemi 
+ poll. longi, axillares, pauciflori ; bractese minute ovate virides; 
pedicelli cum ovariis 1 poll. longi, albi. Flores patentes, iis D. 
metachilini equales. Sepalum posticum } poll. longum } poll. 
latum, lanceolatum, acutum, lateralia similia; mentum curvum, 
obtusum, gracile sepalo minus. Petala linearia, acuta; sepala 
petala (menti dorso cervino excepto) alba. Labellum basi 
angustatum lineare ; lobi laterales breves, obtusi, incurvi, medius 
cordatus obtusus carnosulus rubro-aurantiacus marginibus 
convolutis appressis; caring in disco 3, equales, aurantiace. 
Columna recta, olivaceo-brunea, in ventre canaliculata ; stelidia 
ovata, incurva, stigma partim integentia. Anthera immersa, 
brunea. Capsula 1 poll. longa, cervina (nunquam viridis) ; 
coste fertiles sterilibus bis latiores, canaliculi profundi inter 
costas siti. 
Hab. Singapore: Bukit Mandai! (n. 5029), on Pandanus 
atrocarpus, Griff. 
Johore : Pulau Kukub, on Sago Palms. Also in similar 
localities at Tanjong Kopang, on the Johore Strait. 
I believe the affinity of this plant is with D. revolutum, Lindl., 
although the vegetative organs are very different from any in 
the section Distichophyllw. The stems are long, weak, and 
branching, emitting slender roots at intervals by which it 
scrambles up the vertical stems of Sago-palms, Pandani, &c. 
The leaves are long and thin, and very unequally bilobed at the 
apex. The racemes are axillary and few-flowered. The 
flowers are inconspicuous, almost entirely white, except that the 
back of the spur, three lines on the lip, and the whole of the 
terminal lobe of the lip are dull orange. The capsule is curious 
from its being apparently never green, but from its earliest 
stage is of a light fawn colour. 
LINN. JOURN.—BOTANY, VOL. XXXII. S 
