XX. DIPTER0CARPACE2E. 
2x6 
[Dipterocarpus: 
Selama (Wray); ICwala Kangsar (Foxworthy); Penang, Waterfall. 
Disirib. Sumatra. Native name: Minyah Keruwmg Dadeh. 
(6) D. fagineus Vesque, Comptes rendus lxxvm. 625; King, 
l c 04 D. prismaticus Dyer, Journ. Bot. 1874, p. 104, t. 144, fig. 17* 
A tree 40 to 80 ft. tall. Branchlets and buds glabrous, or 
when quite young pulverulent. Leaves coriaceous, elliptic acute 
or elliptic-ovate, base long cuneate, edges undulate, backs glau- 
cescent, glabrous or the nerves appressed hairy, 10 to 13 pairs, 
2*5 to 3-25 in. long, 1*3 to 175 in. wide; petioles *5 in. long, lather 
slender. Panicles slender, glabrous, 2 to 3 in. long, 3- to 4-flowered. 
Flowers 1*25 in. long. Calyx-tube campanulate with 5 
small lobes short round, long ones linear, ’2 in. long. Petals oblong 
blunt *65 in long, backs mealy. Fruit ovoid to ellipsoid, 5-angled, 
glaucous, 1 in. long, outer wings linear-oblong, base narrowed, 
2-5 to 3 in long, 75 in. wide, the inner lobes very short, hardly 
distinct. Hab. Hill forests. Perak, Thaiping Hills, 500 to 1000> ft. 
altitude (Kunstler). Penang Hill, 500 to 600 ft. altitude (Curtis). 
Distrib. Borneo. 
This has the smallest leaves of any of our species. 
(7) D. oblongifolius Blume, Ann. Mus. Bot. Lugd. Bat. ii. 36 , 
Dyer, Journ. Bot. 1874, p. 105. D. pulcherrimus Ridl. Trans. Linn. 
Soc. iii. 283. , . , 
A large tree 40 to 80 ft. tall. Leaves sub-coriaceous, glabrous, 
long-elliptic acute or acuminate, base narrowed rounded, nerves 14 
pairs slender, prominent beneath, conspicuous above, 6 to 8 in. 
long, 2 to 2*5 in. wide; petioles 1 in. long. Flowers in silky axillary 
panicles, 6 in. long, sub-sessile. Calyx-tube 5-angled, silky, 75 in. 
long short lobes oblong silky, long ones lorate, over *5 in long. 
Petals lorate blunt, pubescent outside, cream yellow tinted rose 
colour, 2 in. long, *5 in. wide. ■ Fruit pink, glabrous when ripe, 
1-25 in. long, obconic, 5-ridged; outer wings lorate lanceolate 
blunt, 4 in. long, 1 in. wide ; nerves 3, branched, inner wings short 
lanceolate velvety '2 in. long. Hab. Overhanging streams in dense 
jungle chiefly on the east coast. Pahang, Tahan River very 
abundant; Lipis (Foxworthy). Tringganu, Sai Telubin (Down). 
Perak (Scortechini). Distrib. Sumatra, Borneo. Native name: 
Neram or Nerrum. 
The flowers of this beautiful tree are very fragrant. It is one of the 
smallest trees in the genus. The wood is red and fairly good. 
(8) D. grandiflorus Blanco, F. Filipp. {Ed. 2), 314; Dyer, 
Journ. Bot. 1874, p. 106, t. 45, fig. 19; King, l.c. 95. D. pterygo- 
calyx Scheff. Obs. Phyt. ii. 35. (Fig. /, p. 212.) 1 
A vast tree 100 to 150 ft. tall. Branchlets hoary at length 
glabrous. Leaves stiff coriaceous, ovate-elliptic, base broad, edges 
entire or undulate, crenate glabrous; nerves 14 to 16 pairs, strongly 
