Indigofera.] 
XLIII. LEGUMINOSiE. 
385 
Pod linear. Ovules and seeds several. 
Calyx much shorter than the petals. 
Flowers rather crowded in sessile racemes. Pod 1 to ljin. long, 
with an incurved point 7. I. parvijlora. 
Flowers very small, distant, in slender racemes. Pod J to Jin. long, 
straight, very slender, often viscid 8. I. viscosa. 
Calyx-lobes about as long as the petals. Racemes loose. Plant 
hirsute with spreading hairs 9. 7 . hirsuta. 
Calyx-teeth all very short, the lower ones rarely rather longer than the tube. 
Shrubs (except I. pratensis). 
Shrubby, densely argenteo-canescent. Leaflets large, obovate. Pod reflexed, 
3 or 4-seeded, torulose 10. I. argentea. 
Shrubby, argenteo-canescent. Leaflets 9 to 13, large, obovate-oblong. 
Pod nearly straight, 8 to 12-seeded, not torulose 11. I. tinctoria. 
Small suffruticulose. Leaflets 5 to 9, rarely 3, obovate. Flowers some- 
what crowded ; pedicels short. Calyx-teeeth short. Pod terete, shortly 
beaked ; seeds numerous 14. 7. Baileyi. 
Undershrub. Leaflets slightly veined. Racemes rather long, with 
numerous rosy flowers 15. I. decora. 
Leaflets usually 5, obovate or orbicular, the veins scarcely conspicuous . . 13. L saxicola. 
Leaflets 9 or more. 
Herb or undershrub. Leaflets mucronate and distinctly veined. 
Stipellas setaceous. Flowers 5 to 6 lines long 12. I. pratensis. 
Shrubs. Leaflets obscurely veined. Stipellse none or replaced by small 
glands. 
Calyx truncate, the teeth scarcely prominent. Plant nearly glabrous. 
Flowers 3 to 4 lines long, on rather long pedicels. Pod quite 
glabrous 16. 7. australis. 
Calyx-teeth distinct, the lowest as long as the tube or nearly so. 
Whole plant slightly canescent. Pods pubescent, at least when 
young. Leaflets contracted at the base or petiolulate 17. 7. brevidens. 
1. I. linifolia (Flax-leaved), Retz; DC. Prod. ii. 222; Benth. FI. Anstr. ii. 
195. A slender much-branched diffuse or procumbent annual or perennial of J 
to ljft., more or less hoary or white. Leaves simple, almost sessile, linear or 
rarely oblong-lanceolate, J to 1-Jin. long. Flowers very small, in sessile spikes, 
very short when in flower, and rarely lengthening to Jin. when in fruit. Calyx- 
teeth subulate-pointed, much longer than the tube, the lower ones as long as the 
petals. Standard sessile, about 1J line long. Ovary sessile, with 1 ovule. Pod 
nearly globular, white-tomentose, about 1 line diameter. — W. and Arn. Prod. 198; 
F. v. M. Fragm. iii. 101 ; S pharidiophornm linifolium, Desv., and S. abyssinicum, 
Spach, in Jaub. and Spach, 111. PI. Or. v. 103, t. 494. 
Hab.: Endeavour River, Banks and Solander ; Shoalwater Bay, It. Brown; Dawson River, 
F.v. Mueller; Rockhampton, Dallachy; Bremer River, Fraser; also in Leichhardt's collection. 
The species is common in tropical Asia and some parts of Africa. Wight, Ic. t. 313, represents 
a short broad-leaved variety not found in Australia. — Bentli. 
2. I. enneaphylla (of 9 leaflets), Linn.; DC. Prod. ii. 229 ; Benth. FI. 
Austr. ii. 196. A prostrate straggling or rarely erect perennial of 1 to ljft., 
hoary or almost silky-pubescent, the branches angular with the hairs sometimes 
spreading. Leaflets 5 to 9, mostly alternate or scarcely opposite, obovate or 
oblong-cuneate, 3 to 4 or rarely 5 lines long. Flowers very small, in sessile 
spikes which are short and dense when in flower, rarely J-in. long in fruit. Calyx- 
teeth much longer than the tube and shorter than the petals. Standard about 
3 lines long, narrowed into a broad claw ; keel narrow, almost acuminate. Ovary 
with 2 or rarely 3 ovules. Pod terete, about 3 lines long, usually 2-seeded. — W. 
and Arn. Prod. 199 ; Wight, Ic. t. 403 ; F. v. M. Fragm. iii. 102. 
Hab.: Bay of Inlets, Banks and Solander; Keppel Bay, It. Brown; Dawson River, F. v. 
Mueller; Fitzroy River, Dallachy ; Port Denison, Fitzalan ; Connor’s River, Bowman; Rocking- 
ham Bay, Islands of Torres Straits, &e. 
The species is common in the plains of India. 
