Cassia.] xlvii. § cjesalpinie^ (oliver). 269 



Flowers in axillary fascicles racemes or corymbs shorter 

 than the leaves, or confluent above and terminal. Sepals 

 nearly equal. Two anterior stamens longer. Legumes terete 

 or flattened, unappendaged, 6-15 times longer than broad. 

 Seeds variously flattened. 

 Seeds transverse (across the pod). 



Leaflets 4-5 pairs. Petiole with obtuse gland near base. 



Legumes flattened. (Annual.) 9. C. occidentalis. 



Leaflets 5-9 pairs. Petiole with small gland near base. 



Legume turgid or subterete. (Shrubby.) 10.* C. Sophera. 



Leaflets 3-4 pairs. Petiole with oblong glands between 



the leaflets. Legume terete. (Shrubby.) . . . . 11.* O. laevigata. 

 Seeds longitudinal (lengthwise in the pod). Leaflets 2-3 

 pairs. Legume 4-8 in. long, £-£ in. broad. (§ Proso- 



sperma, Vog.) 12. C. Tora. 



Flowers in axillary (or subterminal), many-flowered, often 

 elongate racemes Sepals nearly equal. Two anterior 

 stamens larger. Legumes flattened. 

 Legume with a broad longitudinal wing on each valve. 



Leaves 1-3 ft.; leaflets 9-12 pairs, 3-7 in. long . . . 13* C. alata. 

 Legume not winged. 



Stipules ovate-lanceolate, deciduous. Leaflets 4-5 pairs, 

 4-6 in. long. Legume 6 times longer than broad, 



straight 14. C. podocarpa. 



Stipules ovate-rotundate, reflexed. Leaflets 8-14 pairs, 

 1-2 in. long. Legume 3-6 times longer than broad, 



straight or sinuous 15. C. didymobotrya. 



Stipules linear-falcate. Leaflets 4—6 pairs. Legume 



straight, 6-8 times longer than broad C. glauca, p. 277. 



Stipules lanceolate or subulate. Legume 2-4 times 

 longer than broad, falcate or subreniform. 



Valves of legume with a row of crest like plaits. 



Leaflets obtuse 16. C. obovata. 



Valves of legume unappendaged. 



Leaflets 5-8 pairs, obtuse, pubescent. Legume 



1-1 £ in. long 17. C. holosericea. 



Leaflets 4-5 pairs, acute, puberulous, or glabrate. 



Legume f-1 in. broad . 18. C. acutifolia. 



Leaflets 5-8 pairs, acute, glabrous. Legume 7-8 



lines broad ." . . . 19. O. angustifolia. 



C. Sepals rather obtuse, subequal. Stamens usually 4-6, all perfect. Leaflets in 

 2 pairs. Flowers small, in lax short terminal or leaf-opposed racemes. Legume flat, 

 1-2 in. (§ Absus, Vog.) 20. C. Absus. 



D. Sepals, or at least the outer ones, acute. Stamens 10 or fewer, all perfect, similar 

 and but slightly unequal (rarely 2-3 abortive) ; anthers linear. Legume 2-valved, 

 flat, linear. Seeds compressed, the flat sides parallel with the valves. Pedicels soli- 

 tary, in pairs or fascicles, axillary or supra-axillary. Leaflets in 4-80 pairs. (§ Chain- 

 cecrista, DC.) 



Leaflets, 4-7 pairs. Petiole with 1-3 stipitate glands, dif- 

 fuse, wiry 21. C. Grantii. 



Leaflets 8-80 pairs. 



Petiole with stipitate gland at base. Flowers small, 



sepals 3 lines. Pedicels £ in. Leaflets 8-18 pairs . 22. C. zambesica. 

 F/etiole with sessile gland at base. Flowers small, sepals 



2-3 lines. Pedicels 1-2 lines. Leaflets 8-18 pairs . 23. C. nigricans. 

 Petiole with sessile gland at base. Sepals 3-5 lines. 



Pedicels |-4 in. Leaflets 10-80 pairs, usually 1-3 



lines long 24. C. mimosoides. 



