218 XLY. LEGfUMINOSiE \Indigofem 



shrub, bracts broad concave, long-acuniuiate, exceeding tlie buds, jjods straiglit witli 

 a long" slender i^oint. 



5. I. Gerardiana, Wall; Collett Simla Mora, fig. 36.— Syn. I. lieterantha, 

 Wall. ; Brand. F. M. 135, Yern. Katlii^ Jaims. 



Strigose witb grey hairs. Leaflets less than % in. long, elliptic-oblong, 

 obtusej stipels setaceous, persistent. Calyx teeth lanceolate, as long as tube. 

 Pods reflexed when ripe, straight, cylindric, marginate, with a few scattered 

 hairs. 



Outer North- Webt Himalaya, ascending to 8,000 ft. ; eastern ou.t&kirtb of the 

 Bd leiman range. Fl May, June. 



6. I. Dosua, Ham.; Fl. Brit. Ind, ii. 102. 



A large shrub, attaining 15 ft., at times only an undershrub. Densely 

 pubescent or tonientose, leaflets 10-20 pair, elliptic- or linear-oblong, mucro- 

 nate, |™1 in. long. FL iDright red, calyx densely silky, teeth, very unequal. 



Himala3^a 6,000-8,000 ft., from Simla eastwards. Shan hills. Upper Burma. Fl. R. S. 

 A remarkable variety is /. staeJiyodes, Lindl. Kumaon, Sikkim, Khasi hillb and 

 Shan liillb in ui^jDer Burma, shootte lusty tonientose, leaflets linear. 



In thib section, or near it : 7. 1, galegoides, DC, Khasi hills, Dacca, Trayancore, Ceylon, 

 Burma, Malay peninbula and Archipelago, Borneo, the Philippine islands, a tall bhrub *, 

 leaflets large, pods erect, long-acuminate, 2-3 hi. long. 8. I. bella, Prain, Ann Bot. 

 Gard. Cal. ix. t. 28. Upper Burma, leaflets 3-4 pair, 3 in, long, glaucous beneath. Fl. 

 ■white, over 4 m. 



B. Leaflets mostly opposite, 4-10 pair. Fl. small, under I in. long. 



9. I. tinctoria, Linn. ; Wight Ic. t. 365. The Indigo plant, Vern. Ml^ 

 Hind. ; Me^ Burm. 



Branches twiggy? silvery, leaflets 4-6 pair. FL reddisii yellow, in lax 

 racemes, calyx teeth lanceolate, as long as tube. Pods deflexed, straight or 

 slightly curved. 



Cultivated as an annual, the plant being cu.t when the fl. appear, or as a biennial or 

 triennial, a second or even a third year's crop being obtained from the same plant. 

 Original home of this species doubtful. 10. I. Anil, Linn. (Z snfruticosc6, Mill. ; 

 Pram and E. Baker in Journal of Botany. 1902, 138), possibly only a variety with 

 falcate reflexed pods, the tip being curved upwards, is also cultivated for Indigo, 

 and has run wild in Burma. 11. I. argentea, Linn., jDods reflexed, torulose, 3-4 

 seeded, is indigenous in Sind, Western Eajputana, and the dry districts of the Deccan, 

 also in Abyssinia and the Sudan, cultivated for Indigo in Arabia and Egypt. 



To the same group belong : 12. I. Wightii, Grab., western peninsula from Bombay 

 southwards, also Tenasserim, i)ods straight, erect, terete, 1-lJ m. long. 13. I. con- 

 stricta, Trim. Handb. Ceylon, ii. 27 ; Talbot Libt 67, moist forests of ISTorth ICanara. 

 Ceylon. Leaflets 4-5 jmir, pods recurved, 3-7 seeded, constricted between seeds, IJ in. 

 long. 14. I nigrescens, Kurz ; Prain in Journ. As. Soc. Beng. vol. Ixvii. 286. Khasi, 

 Kachin and Shan hills. Yunnan, leaflets 8-10, fl. J in. long. 



C. Leaflets not opposite, few, 1, 3 or 5. 



15. I- paucifolia, Delile ; Wiglit Ic. t. 331. 



A small shrub, with numerous stout woody, ascending branches, the whole 

 plant grey with fine silvery hairs, leaflets 3-5 linear-lanceolate, the terminal 

 largest. M. small, brick-red, pods |-| in. long, torulose. 



Sind, Gujarat, North-West India as far as Benares, dry districts of Central and South 

 India. FL Sept. to Jan. Ceylon, dry region. Arabia, Egypt. 



Two Burma shrubs, with simple, sometimes 3-foliolate leaves : 16. I. Brunoniana, 

 Kurz P. PL i. 359, grey with short hairs, leaves 2-5 in. long, chiefly in Eng forest. 

 17. L caloneura, Kurz, I.e., 360, rusty toinentobe, leaves 2-3 in. long. 



6. SESBANIA, Pers. ; PI. Brit. Ind. ii. 114. 



Herbs or short-lived trees. Wood white, soft. Leaves paripinnate, with 

 numerous opposite deciduous leaflets. Stipules setaceous, caducous, stipels 



