246 
XX. DIPTEROCARPACE^E. 
[. Balanocarpus. 
(2) B. Curtisii 
(3) B. ovalifolius 
(4) B. anomalus 
(5) B. pubescens 
(6) B. Heimii 
(7) B. maximus 
Fruit globose-ovoid, half covered by sepals; 
flowers glabrous . 
Fruit unknown; leaves large ovate; flowers 
glabrous 
Flowers pubescent. 
Flowers small silky, leaves glabrous 
Flowers small; petals long narrow, glabrescent; 
sepal cup with short ovate lobes; leaves 
large tomentose beneath .... 
Flowers moderately large; petals short, broad 
all silky. 
Stamens 10. 
Fruit conic, glabrous, cup half as long . 
Flowers larger; petals long linear, contort; fruit 
elongate large ...... 
(1) B. penangianus King , l.c. 131; Ann. Bot. Gard. Calc. v. 
(2), 158, pi. iqib. , , . , 
Tree 40 to 70 ft. tall, 8 to 18 in. through, with pendulous branches 
almost glabrous except inflorescence. Leaves coriaceous, ovate 
lanceolate or ovate acuminate to caudate, base cuneate; nerves 
7 to 8 pairs, inconspicuous above, very slender beneath, i '75 to 
4 in. long, "8 to i*6 in. wide; petioles *25 to ‘4 in. long. Panicles 
hoary-pubescent. Flowers small, brownish yellow, secund 7 to 9 
on each branch, pedicelled, ‘15 to '2 in. long. Sepals sub-equal, 
broad ovate acute, tomentose. Petals oblong obtuse, twisted. 
Stamens 15; awns curved, longer than anthers. Fruit ovoid or 
obovoid, shortly apiculate, striate, '6 in. long, -3 in. through, per¬ 
sistent calyx covering the lower third, glabrous, lobes deltoid acute. 
Hab. Forests, Malacca, Bukit Senggeh (Foxworthy). Penang, 
Government Hill 1000 to 2000 ft. altitude. Telok Bahang ana 
Muka Head (all collectors). Perak, Thaiping district (Kunstler . 
Native names : Dammar hitam; Singga. Use : Produces a black 
Dammar. _ . 
Some specimens in young fruit only, received from Bukit Senggeh, Malacca, 
under the name of Singga, from Foxworthy, may be this species. 
(2) B. Curtisii King, l.c. 131; Ann. Bot. Gard. Calc. v. (2), 
158, pi. 191A. (Fig. 23 f, p. 213.) 
Small tree 20 to 30 ft. tall, 4 to 6 m. through. Branches slender. 
Leaves membranous, lanceolate caudate obtuse, base shortly 
cuneate; nerves 8 to 10 pairs faint, secondaries nearly equal, 
2 to 2-25 in. long, .75 to 1 in. wide; petioles 'i to -15 in. long. 
Panicles numerous, -5 in. long, glabrous. Flowers secund, short- 
pedicelled, *15 in. long. Sepals sub-equal, round-ovate blunt, 
glabrous, tips sometimes pubescent. Petals dark purple elliptic 
oblique, acuminate, pubescent outside. Stamens 15; filaments 
shorter than anthers; awns longer than stamens. Fruit globular 
apiculate, *25 in. long, more than half covered by the sepals, outer 
2 smaller oblong, inner 3 much broader, obovate, truncate. Hab. 
Hill forests. Penang, Waterfall to 500 ft. altitude (Curtis). Perak, 
Thaiping (Kunstler). Distrib. Borneo. 
