70 25. LEGUMINOS^. 



* Leaflet solitary. Stamens monadelphous. 



1 . Ulex. Cal. of 2 parts, the upper with 2, the lower with 

 3 teeth, a bract on each side at the base. Pod turgid, few- 

 seeded, scarcely longer than the calyx. 



2. Genista. Cal. 2-Upped, upper bifid, lower 3-toothed. 

 Style subulate, ascending. Stigma terminal, oblique, in- 

 trorse. — Many foreign species have trifoliate leaves. 



** Leaf of 3 leaflets. Stamens monadelphous. 



3. Sakothamnus. Cal. 2-lipped, the upper with 2, the lower 

 with 3 teeth. Style long, curved, thickened upwards, chan- 

 neled within. Stigma terminal, capitate, small. Pod flat. 



4. Ononis. Cal. 5-cleft, campanulate, segments narrow, the 

 lower ones longer. Keel beaked. Style filiform, ascending. 

 Stigma terminal, subcapitate. 



*** Leaf of 3 leaflets. Stamens diadelphous. 



5. Medicago. Cal. with 6 nearly equal teeth. Keel obtuse. 

 Filaments of the stamens filiform. Ovaries curved. Pod 

 1 -celled, falcate or spiral. Seeds 1 or many. 



6. Mblilotus. Cal. with 5 nearly equal teeth. Keel obtuse. 

 Filaments filiform, not united with the claws of the petals. 

 Ovary straight. Pod subglobose or oblong, 1 -celled, 1 — 4- 

 seeded, longer than the caly.v. Pet. distinct, deciduous. 



7. Teifolium. Cal. with 5 unequal teeth. Keel obtuse. 

 Filaments slightly enlarged upwards and more or less united 

 with the claws of the petals. Pod oval, 1 — 4-seeded, in- 

 cluded in the calyx or slightly protruding. Pet. slightly 

 combined, persistent. — In T. ornithopodioides, scarcely a true 

 Trifolium, the pod is 8-seeded and the filaments are fibform. 



8. Lotus. Cal. with 5 nearly equal teeth. Keel ascending, 

 with a narrowed point (beak). Wings connivent at their 

 upper margin. Longer filaments dilated upwards. Style 

 kneed at the base, filiform-subulate. Pod linear, many- 

 seeded, 2-valved, imperfectly divided by transverse parti- 

 tions. 



**** Leaf pinnate with an odd one. Stamens monadelphous. 



9. Anthyllis. Cal. tubular, inflated, 5-cleft, segments un- 

 equal. Keel not beaked. Style fihform. Stigma capitate. 



***** Leaf pinnate with an odd one. Stamens diadelphous. 



10. OxYTROPis. Cal. with 5 teeth. Keel with a narrow 



