338 LEGUMINOS2. { Derris. 
branous, while young sprinkled with minute appressed hairs; 
flowers small, white, on puberulous pedicels up to } a line long, 
forming a short tawny puberulous raceme or racemose cyme in the 
axils of the leaves; calyx about 14 lin. long, almost glabrous, the 
teeth short and broad, blunt; corolla glabrous, about 3 lin. long, 
the petals long-clawed; stamens 10, united in a single slit sheath; . 
ovary glabrous; pods compressed, lunately-oblong, 3-1 1m. long, 
acute, at the base contracted into a short stalk, smooth, brown, 
1-seeded. 
Has.—Tidal jungles of Upper Tenasserim.—F]. March. 
DERRIS, Lour. 
Calyx truncate or very shortly and broadly toothed. Standard 
obovate or orbicular; keel slightly incurved. Upper stamen 
usually free at the base, but united from the middle with the others 
in a slit sheath ; anthers uniform. Ovary sessile or shortly stalked, 
with several ovules; style incurved, with a small terminal stigma. 
Pod flat, oblong or linear, thin or coriaceous, indehiscent, the upper 
or both sutures bordered with a narrow wing. Seeds 1-2, or rarely 
3, very flat, orbicular or reniform.—Tall woody climbers or rarely 
erect trees with unpaired-pinnate leaves, the leaflets opposite ; stipu- 
lets small and bristle-like or none. Flowers in axillary racemes. 
Bracts and bractlets small and deciduous. 
* Stamens monadelphous. Pods narrowly winged along the . 
vexillar suture only. 
X Flowers in simple or almost simple racemes. 
© Pods lanceolate, acuminate or acute at both 
ends. 
Erect tree ; leaflets almost acute with a mucro 
Scandent shrub ; leaflets notched ¥ é . : 2 . 
O O Pods oblong or orbicular with rounded ends. 
Scandent shrubs. 
Gishrouss gon Gene ‘ D. 
u ° ‘. i r 
Rusty pubescent ; pods ———— = puberulous ; martes in : 0 " D. elegans. 
uch larger. D. elliptica. — 
s 
SS 
robusta. — : f > 
scandens. i 
uliginosa. 
parsonly:. 0053 eae : 
As former, but leaflets usually in 4 pairs; flowers 
X X Racemes collected into panicles. : 
Seandent; glabrous pods sinuat stricted between the seeds - D. sinuata. 
* %* Stamens monadelphous or the vexillar one free. P 
more or less distinctly winged along both sutures. 
_Seandent, glabrous : > i ; : . ; 
.  « D. amena. . 
1. D. robusta, Bth—A tree (30—50-+15—20+4—5), shed 
ding leaves in H.S., the very young shoots slightly appressed rusty — ae) 
