Indigofera.] 



XLVII. § PAPILI0NACE2E (BAKER). 



67 



Group 4. Paniculatee. — Leaves imparipinnate. Flowers in panicles. 



Leaflets 13-17 22. I. Brassii. 



Leaflets 3-7. 



Stipules foliaceous 23. /. sericea. 



Stipules setaceous. 



Pod exserted 24. I.pulchra. 



Pod equalling the calyx 25. I. bracteolata. 



Group 5. Spinosse. 



the spines. 



-Leaves imparip innate. /Strong spiny bushes with flowers fr 



Pod glabrous ; leaflets 1-3 



Pod coated with stalked glands ; leaflets 5-7 



. 26. L. spinosa. 

 . 27. /. Rothii. 



Group 6. Tricjiopodse. — Leaves imparipinnate. Flowers solitary or rarely gemi- 

 nate on slender peduncles from the axils of the leaves. 



Peduncles 1-2 in. long 28. /. trichopoda. 



Peduncles 6-9 lines long. 



Densely silky, suffruticose 29. L. nigricans. 



Subglabrous, herbaceous. 



Pod oblong, 2-seeded 30. /. nigritana. 



Pod linear, 6-8-seeded 31. /. sparsa. 



Group 7. Sessiliflorae. — Leaves 

 axils of the leaves. 



imparipinnate. Flowers in sessile clusters in the 



Leaflets 3-5 jugate ; pod 5-6-seeded 32. 



Leaflets 1-2-jugate ; pod 2-3-seeded 33. 



sessiliflora. 

 trigonelloides. 



Group 8. Dissitifloree. — Leaves imparipinnate. Flowers in lax 2-6-flowered axil- 

 lary racemes. 



Racemes short, subsessile. 



Argenteous; leaflets 1-5 34. /. arenaria. 



Slightly argenteous ; leaflets 9-11 . . . 35. L. concinna. 



Grey-villose ; leaflets 5 36. /. grisea. 



Racemes distinctly stalked. 

 Suffruticose. 



Stipules setaceous 37. I. suaveolens 



Stipules foliaceous 38. I.parvula. 



Herbaceous, annual or biennial. 

 Pods 4-6-seeded. 



Flowers in pairs 



Flowers 3-6 in a raceme .... 

 Pods 10-1 2-seeded. 



Pods and stem glanduloso-setose 



Pods and stem pilose 



Pods and stem glabrescent. 



Leaflets 2-4-jugate 43. I. pentaphylla. 



Leaflets 6-8-jugate 44. J. multijuga. 



39. /. geminata. 



40. /. vicioides. 



41. 7". viscosa. 



42. I. pilosa. 



Group 9. Stenophyllre. — Leaves imparipinnate with linear or narrowly oblanceolate 

 leaflets, Flowers in elongated racemes. All suberect annuals. 



Racemes shorter than the leaves. 



Leaflets 2-3-jugate .......... . . . 45. L parviflora. 



Leaflets 5-6-jugate 46. I. stenophylla. 



Leaflets 9-10 jugate 47. i. Frieureana. 



Racemes exceeding the leaves. 



Leaflets 3 48. /. Welwitschii. 



Leaflets 5-7 49. /. psilostachya. 



