164 LEGUMINOS (Harv.) (Indigofera. 
2. Simplicifolie. Leaves simple, subsessile. (Sp. 3-5.) 
Shrubby, divaricate, subglabrous ; lvs. oblong or obovate ) denudata, vars. 5. « 
Shrubby, virgate, canescent ; vs. obcordate, flat a obcordata. 
Shrubby, flexuous, canescent ; lvs. linear-cuneate, con- ee 
volute ... (4) nudicaulis, 
Suffruticose, diffuse, ‘subglabrous ; les. ovate-oblong, flat (5) ovata, 
3. Trifoliolate. Leaves digitately trifoliolate ; i.e., three leaflets springing from the 
apex of a common petiole. (Sp. 6-32.) 
(t.) Stipules subulate or setaceous, or obsolete : 
Shrubs, divaricately much branched ; lvs. scattered or tufted, not imbricate : 
Spine-tipped ; racemes short; leafi. 1-2 lines 
long, strigose beneath... ... ... (6) spinescens. 
Spine-tipped ; racemes long, rigid ; ‘leafl. stri- 
goso-canescent ... (7) pungens, 
Unarmed, piloso-canescent ; flowers solitary (8) dealbata, 
Unarmed ; leaves sub-glabrous ; racemes few 
flowered. 
Leafl. obovate or oblong-cuneate, 4-5 lines 
Why, . (9) denudata. 
Leafi. lanceolate linear, acute, ‘g-10 lines 
long -» « (£0) stenophylla. 
Shrubby, villoso-canescent ; - Lys. “closely imbricate .. (32) glomerata. 
Suffruticose or herbaceous, not woody : 
Leaflets narrow (lanceolate or linear) 
Annual ; very slender ; racemes capillary (11) tenuissima, 
Perennial ; canescent or » silvery. 
Leafi. linear, complicate, shorter than 
the thick petiole ... ... ... ... (£3) complicata. 
Leafl. lanceolate, mostly open : 
Strigose; stip. short; cal. lobes 
attenuate... ... (14) heterophylla, 
Silky ; stip. short ; cal, lobes sub- 
lanceolate. ... (1§) candicans, 7 
Strigose ; stip. ‘elongate ; : "eal. 
lobes subulate ... ... (16) psoraleoides, ~ 
Perennial ; thinly strigillose (not canescent). 
Petioles elongate ; bracts very broad, 
ovate... ... (12) venusta, 
Petioles elongate ; bracts minute, subulate : 
Branches and petioles sharply 
triquetrous, lvs. glabrous... (17) triquetra. 
Branches mult-angular, thinl 
strigillose -.. (18) adscendens. 
Petioles 1-2 lines long ; ifts. linear ; 
racemes short s+ se» (19) leptocarpa. 
Leaflets broad (elliptical or obovate). 
ee strigillose or subglabrous : 
edunce. setaceous ; racemes few flowered 
subcapitate vs (20) gracilis, | 
Pedune. robust ; “racemes Tong, many flowered ; 
Herbaceous; “se roundish: 
obovate ... sss ,«cs__ sv». (21) procumbens, * 
: vee ees vee sue sc. (22) PORFeCtA, 
Strigoso-canescent ; Ifts. obcordate ... (23) cardiophylla. 
Densely hairy, with loose, whitish hairs : 
Racemes dense, on long, = pe- 
duncles .. (24) tomentosa. 
. Racemes laxly few flowered, on 1 short 
peduncles... ++» ves (25) depressa. 
