Page 332: Revision of Pandanus, 17. Borneo, Cambodia, Vietnam — St. John 
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at apex, the lower l A retrorse scabrous; apical 
sterile bract 12 cm long, its lower quarter 8 mm 
wide, lanceolate, foliaceous, the remainder trig- 
onous subulate; inflorescence spicate, with 4 or 
5 syncarps, each subtended by a leafy, apparently 
green, bract, the median one 2.3 cm long, 1 cm 
wide, lanceolate, beyond the middle the margins 
and midrib below serrulate; syncarps 1.5-2 cm 
long, 1.3-1. 5 cm in diameter, elliptic-subglobose, 
bearing about 113-160 drupes, these 6-7 mm 
long, 2. 5-3. 5 mm wide, 1.5-3 mm thick, the 
body oblance-ellipsoid, 5-6 mm long, stramine- 
ous, heavily striate; pileus with the base 1 mm 
high, low pyramidal, 5-6-angled, at maturity 
yellow and the adjacent ones connate; style 1-1.5 
mm high, this basal portion lanceoloid, bearing 
proximally at right angles the stout subulate 
tip; stigma 1-1.5 mm long, distal, broad linear, 
black, papillose, reaching almost to the tip; 
endocarp median, ellipsoid, 3.8 mm long, car- 
tilaginous, stramineous, the walls 0.03 mm 
thick; seed 3 mm long, ellipsoid; apical meso- 
carp minute; basal mesocarp 1 mm long, fibrous 
up the walls, fleshy within. 
HOLOTYPUS: Sarawak, Gunong Pueh, rocks 
in forest, epiphyte, 3,000 ft. alt., 25 Aug. 1955, 
]. W. Purse glove 4,799 (sing). 
specimens EXAMINED: Sarawak, Nanga Pe- 
lagos, Buah Kuning, 24 July 1938, Daud & 
Tachun 33,645 (sing). 
DISCUSSION: Pandanus pumilus is a member 
of the section Aero stigma, as is its closest rela- 
tive, P. fruticosus St. John of North Borneo, a 
species which has the syncarp solitary, 3 cm 
long, 2 cm in diameter, ellipsoid; drupes 9-10 
mm long; style arcuate ascending; and the leaves 
51-58 cm long, 8-10 mm wide, and the mar- 
ginal serrations black. P. pumilus St. John of 
Sarawak has the syncarps 4 or 5 in a spike and 
1.5-2 cm long, 1.3-1. 5 cm in diameter, elliptic- 
Fig. 206. Pandanus pumilus St. John, from holo- 
type. a, Infructescence, X 1; b, carpel apices and 
stigmas, oblique distal view, X 4; c, drupe, lateral 
view, X 1; d, drupe, longitudinal median section, X 
1; drupe, lateral view, X 10; f, drupe, longitudinal 
median section, X 10; g, drupe apex and stigma, apical 
view, X 10; h, leaf base, lower side, X 1; i, leaf 
middle, lower side, X 1; leaf apex, lower side, X 1; 
k, leaf apex, upper side, X 1* 
