66 XLVII. § PAPILIONACEE (BAKER). [ Indigofera. 
unguiculate ; wings oblong, adhering a little to the keel; keel obtuse 
or acuminate, gibbous or spurred on both sides. Upper stamen free 
from the base, the others connate; anthers uniform, the connective 
forming an apiculus. Ovary sessile or nearly so, usually with several, 
sometimes with only one or two ovules; style glabrous; stigma capi- 
tate. Pod linear or oblong, rarely globose, straight or curved, terete 
or tetragonous or compressed, septate internally.—Herbs or shrubs of 
very various habit, more or less clothed with adpressed silky hairs 
fixed by the middle, and sometimes also with laxer pubescence. Leaves 
in our species simple or pinnately 3~ o-foliolate. 
A large genus, nearly restricted to the Tropics, except in South Africa, with a greater 
nuniber of species in Africa than anywhere else, not less than 200, including the Cape 
and Mascarene forms. 
§ Acanthonotus, Benth. Ovary uniovulate. Pod short, falcate, subtriquetrous, 
the dorsal suture dilated and prickly. 
em GIR SS a 4 oes eae oy La L echinata, 
$$ Spheeridiophora, Desv. Pod small, subglobose or ovoid, 1-seeded, unarmed. 
Deetes tie, Mauer Bivery oe as 
Leaves imparipinnate, not silvery. 
Derihea omnes ione Su. a ee 
peatets 6-4,6-§ lines long 3 8 ke a ee eee 
RMReGE TS Se a ee a 
§§§ Euindigofera. Pods linear, terete or subtetragonous, 2- or many-seeded, 
unarmed. 
Group 1. Simplicifolize.— Leaves simple. 
Inflorescence copiously panicled. 
Pod terete, glabrous, 4-seeded : 6. I. paniculata. 
Pod subcompressed, villose, 2-seeded .. . . . 7. I. procera. 
Flowers 1-2, pedicellate in the axils of the leaves. 
Emnvee ObOWAts, iy done ks ee es BD. Baineses. 
Reeves linear, Pin.long 2. oO Behe 
Flowers in dense sessile axillary clusters . . . . . . . 10. J. cordifolia. 
Flowers in lax axillary racemes. 
Leaves linear, subsessile. 
Pod under an inch long, 5—6-seeded . 
Pod 14-2 in. long, 12-15-seeded . : 
Leaves oblong or lancéolate, short-stalked. 
Herbaceous, with copious soft spreading pubescence. 
Petiole 1-2 lines long; racemes 2-8-flowered . . 13. T. erythrogramma. 
Petiole 4 in. long; racemes 15-20-flowered . . . . 14. I. flavicans. 
Shrubby, with adpressed grey bristles . . . . . . . 15. LZ. Knoblecheri. 
Leaves obovate subsessile Pe eee . 16. I. bongensis 
Leaves round-obovate, stalked plete Midi oes ve LTD, maemmulariae 
eos ee 6 6 TLE stmplicsfolia. 
oe te =. 12. F. macrocarpa: 
Group 2. Conjugatze.— Leaflets 2, a large terminal one and a small lateral one. 
Leaflets suborbicular, argenteous . . . . . . . . . . 18. Z. diphylla. 
Leaflets oblanceolate, glabrescent . . . . 19. Z. conjugata. 
Grovur 3. Capitatee.— Leaves imparipinnate. Flowers in dense terminal heads. 
Bracts leaflike, pinnate . 
ge . 20. I. capitata. 
Bracts brvad, trifid, densely imbricated . . . 
- . . 24. I. strobilijera. 
