246 XX. DiPTEROCARPACE^. [BalaJtocarpus. 



Fruit globose-ovoid, half covered by sepals; 



flowers glabrous (2) B. Curtisii 



Fruit unknown; leaves large ovate; flowers 



glabrous (3) B. ovalifolius 



Flowers pubescent. 



Flowers small silky, leaves glabrous . . (4) B. anomalus 



Flowers small ; petals long narrow, glabrescent ; 



sepal cup with short ovate lobes; leaves 



large tomentose beneath . . . . (5) B. pubescens 



Flowers moderately large ; petals short, broad 



all silky. 

 Stamens 10. 



Fruit conic, glabrous, cup half as long . . (6) B. Heimii 



Flowers larger ; petals long linear, contort; fruit 



elongate large . . . . . . (7) B. maximus 



(i) B. penangianus King, I.e. 131; Ann. Bot. Gard. Calc. v. 

 (2), 158, pi. 191B. 



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, 175 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 and 

 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, I.e. 131; Ann. Bot. Gard. Calc. v. (2), 

 158, pi. 191A. (Fig. 23 /, p. 213.) 



Small tree 20 to 30 ft. tall, 4 to 6 in. 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 i 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. Hah. 

 Hill forests. Penang, Waterfall to 500 ft. altitude (Curtis). Perak, 

 Thaiping (Kunstler). Distrih. Borneo. 



