XCI. APOCYNACE M . 
347 
Alstonia.] 
{3) A. angustiloba Miq. FI. Ind. Bat. ii. 438; King, l.c. 438. 
Gigantic tree 100 ft. tall, 3 to 4 ft. through;, bark grey; 
branches whorled. Leaves 4 to 7 in a whorl, coriaceous, elliptic- 
oblong sub-acute, base narrowed, white beneath; nerves parallel, 
30 to 40 pairs; 2-5 to 7 in. long, 1-5 to 3 in. wide; petioles 1 to 
2 in. long. Cymes terminal, 4 or more in a whorl; peduncles 
1*5 to 2'5 in. long; branches few, spreading about 1 in. long. 
Calyx-lobes ovate acute, pubescent. Corolla pale green, tube 
cylindric, glabrous outside, *25 in. long, lobes linear-oblong, -2 in. 
long. Ovary glabrous. Follicles grey-pubescent, 6 to 8 in. long, 
under ‘i in. through. Seeds oblong, *2 in. long, -05 in, wide, with 
a tuft of hairs '5 in. long at each end. Hab. Forests. The tree 
flowers after the fall of the leaves, when the young leaves are just 
coming out. Singapore, Gardens; Blakang Mati. Perak, Larut 
(Kunstler); Waterfall (Wray). Penang, Waterfall and Batu 
Feringhi (Curtis). Distrib. Borneo. Native name: Pulai. Use: 
Latex used with copper sulphate in yaws (Gimlette). 
(4) A. micrantha Ridl. Journ. Roy. As. Soc. S. Br. 79, p. 95. 
Leaves opposite not whorled, coriaceous oblong, abruptly 
shortly caudate, base short cuneate; nerves very fine, parallel, 
very numerous, secondary ones as conspicuous joining in a fine 
intramarginal nerve; 4*to 4*5 in. long, 1*5 to 175 in. wide; petioles 
•25 in. long. Panicles axillary slender, 3 in. long; branches distant, 
few, re-branched or not, terminal cymulbs of numerous very small 
sessile flowers. Calyx-tube campanulate, lobes round ciliate. 
Corolla 0-5 in. long, tube cylindric, dilate in middle, lobes oblong- 
lanceolate, pink, with small scales in mouth. Ovary simple, conic, 
glabrous. Hab. Selangor, Rantau Panjang (Kloss). Rare. 
(5) A. macrophylla Wall. Cat. 1648; King, l.c. 439. 
A medium-sized tree. Leaves chartaceous, three in a whorl, 
oblong-lanceolate, shortly abruptly cuspidate, long-attenuate to 
base; nerves 20 to 24 pairs parallel, slightly ascending; 5 to 
12 in. long, 1*5 to 3 in. wide; petioles -5 to 1 in. long. Panicles 
sessile terminal, 3 to 4 in. long and as wide; many-flowered, grey- 
pubescent. Calyx small, lobes 5, ovate acute, pubescent. Corolla 
cylindric, dilate above, glabrous outside, yellowish white, lobes 
broad, as long. Follicles 18 in. long, *2 in. through. Seeds oblong 
peltate, plumed at both ends, -3 in. long. Hab. Local in mountain 
forests at 1200 to 3000 ft. altitude. Malacca, Mt. Ophir at 3000 ft. 
altitude (Ridley). * Penang, Moniot’s Road (Curtis, Wallich, Main- 
gay). Distrib. Malay islands. 
(6) A. latifolia Ridl. A. angustifolia var. latifolia King and 
Gamble, l.c. 441 and var. elliptica. 
A tall tree. Leaves chartaceous, obovate, bluntly short 
cuspidate, base cuneate; nerves 12 to 13 pairs, elevate beneath; 
6 in long, 3 in. wide; petioles 1 in. long. Panicles sessile, terminal 
of 4 peduncles 2 to 2*5 in. long; branches 6 umbellate, *5 in. long. 
