XLVII, LEGUMINOS^. 
594 
[Derris. 
anthers versatile. Ovary sessile; ovules few; style incurved 
filiform. Pod thin flat, indehiscent oblong (i-seeded) strap-like 
(few-seeded) winged on upper or lower sutures. About 40 species, 
tropics. 
Standard without calli at base :— 
Vexillary stamen free throughout; flowers 
panicled (§ Aganope). 
Pod winged on the upper edge only and 
sinuate; flowers -5 in. long; green and 
white ....... 
Pod winged both sides; flower under *3 in. 
long, white ...... 
Vexillary stamen united with the others; 
flowers fascicled on tumid nodes (§ 
Eu-derris). 
Pods winged along upper edge only; narrow 
pointed with ends; seeds several. 
Climber; flowers white in long narrow 
panicles, white ..... 
Tree; leaflets numerous, 25 to 30; flowers 
in dense panicles, violet 
Pods sub-orbicular or oblong; seeds few; 
climbers. 
Pods glabrous; flowers pale pink 
Pods pubescent; flowers white, tipped pink 
Pods winged on both edges. 
Flowers white ...... 
Flowers pink ...... 
Standard with 2 calli on the base. 
Leaves and pink petals pubescent 
Leaves and pink petals glabrous 
Pod thick woody unwinged dehiscent; fruit 
unknown ...... 
Flowers in slender racemes .... 
(1) D. sinuata 
(2) D. thyrsiflora 
(3) D. scandens 
(4) D. dalbergioides 
(5) D. uliginosa 
(6) D. elegans 
(7) D. affinis 
(8) D. amcena 
(9) D. elliptica 
(10) D. malaccensis 
var. aptera 
(n) D. Yappii 
(1) D. sinuata Thw. Enum. PI. Zeyl. 93; Baker, in Hook. fil. 
F.B.I. ii. 246; Brain, l.c. 98. 
Woody sarmentose shrub. Leaves 10 to 16 in. long; leaflets 
■5 to 7, coriaceous, glabrous ovate to ovate-oblong, shortly cuspidate 
blunt, base round or deltoid; nerves 5 to 7 pairs, 4 to 5 in. long, 
2 to 3 in. wide. Panicles of long racemes 6 to 12 in. long. Flowers 
distant; pedicels '2 in. decurved. Calyx cup-shaped, silky *2 in. 
long, green. Corolla -6 in. long; keel and wings white; standard 
orbicular, -5 in. wide, base cordate, apple green, ecallose. Stamens 
diadelphous, vexillary one free to base. Ovary pubescent. Pod 
strap-shaped, sinuate between the seeds, upper suture narrow¬ 
winged, 4 to 8 in. long, 1*5 in. wide. Hob. Tidal rivers, common. 
Singapore, Yo Chu Kang; Pulau Ubin. Malacca (Griffith). 
Pahang, Kwala Lipis (Machado); Rumpin River (Evans). Distrib. 
India, Ceylon, Indo-China, Malaya. 
(2) D. thyrsiflora Benth. Journ. Linn. Soc. iv. Swpp. 114; 
Baker, l.c. ii. 246; Prain, l.c. lxvi. 99. 
Sarmentose bush rarely climbing. Leaves 8 to 15 in. long; 
