XLVII. LEGUMINOS^E. 
595 
Derris.] 
leaflets 5 to 9, dark shining green, oblong to oblong-lanceolate 
acute or rounded at both ends, 4 to 6 in. long, 1*5 to 2*5 in. wide. 
Panicles large thyrsoid, 8 to 24 in. long. Calyx tubular, truncate 
greenish white, *12 in. long, ‘15 in. wide. Corolla white, *3 in. 
long; standard orbicular, *35 in. across, base ecallose cordate. 
Stamens diadelphous, vexillary one free. Pod strap-shaped, thin, 
flat, winged on both sutures (wings '25 in. wide), 3/5 in. long, 
1 to 1‘25 in. wide. Hab. Common in open country. Singapore, 
BukitTimah. Johor, Castlewood. Pahang River. Malacca, Bukit 
Bruang (Derry). Negri Sembilan, Seremban. Perak, Batang 
Padang (Kunstler). Penang Hill (Curtis). Kedah, Yan. Distrib. 
Sumatra, Java. Native names: Akar Tulang Bukit; Akar 
Berumbat. 
(3) D. scandens Benth. Journ. Linn. Soc. iv. Sapp. 103 ; Baker, 
l.c. ii. 240; Brain, lx. 100. 
Lofty climber up to 100 ft. tall. Leaves 4 to 6 in. long, dark 
green shining; leaflets 9 to 19, rigid, sub-coriaceous obovate- 
oblong to oblong acute, cuneate or rounded at base, 2 in. long, 
•75 in. wide, glabrous above, grey-pubescent beneath. Racemes 
short-peduncled to 15 or 18 in. long, pubescent. Calyx -12 in. 
long, silky campanulate. Corolla white or pale rose, *35 in. long. 
Stamens monadelphous. Pod 1 to 3 in. long, *4 to ‘5 in. wide, 
narrowed to both ends, narrowly winged above grey-silky, 1- to 
4-seeded. Hab. In woods usually near the sea. Singapore, Pulau 
Merambong. Pahang, Pekan. Penang, Batu Feringhi and Telok 
Bahang (Curtis and Ridley). Lankawi, Terutau (Haniff). Distrib. 
Indo-Malaya, Australia. 
(4) D. dalbergioides Baker, in Hook. fit. F.B.I. ii. 241; Brain, 
l.c. I0X. 
A tree 30 to 40 ft. tall. Branchlets pubescent. Leaves 6 to 
8 in. long; leaflets 25 to 39, linear, rounded at both ends, tip 
emarginate, pale beneath, 1 in. long, ‘35 in. wide; rachis and 
petiolules pubescent. Racemes numerous 3 to 6 in. long, about 
•75 in. across; rachis pubescent. Calyx *15 in. long, brown-silky, 
teeth deltoid. Corolla *45 in. long, violet; standard oblong- 
cordate 2-glandular. Stamens monadelphous. Ovary pubescent. 
Pod 1- to 5-seeded narrowed to both ends, 1 to 2‘5 in. long, winged 
along upper suture. Hab. Open country, a very pretty tree. 
Pahang, Kwala Sekim, Rumpin and Bunchah, Kwala Lipis (Fox¬ 
worthy). Malacca, Batu Gajah; Machap Road; Bt. Panchur 
(Derry). Negri Sembilan, Tampin Hill. Perak, Padang Rengas; 
Tomoh (Machado). Setul. Distrib. Tenasserim. Native names: 
Munjai hutan; Berak Atai. 
(5) D. uliginosa Benth. Bl. Jungh. 252; Baker, l.c. ii. 241; 
Brain, l.c. 102. 
Black-stemmed slender woody climber 40 or more ft. long, 
glabrous. Leaves 5 to 8 in. long; leaflets 5 (or 3) stiff coriaceous. 
