PEA FAMILY I 15 



Group I. — Leaves without tendrils, of i — 3 leaflets 



Tribe 1. Gents tea. — Shrubs: leaflets entire: stamens monadel- 

 phous 



1. Genista. — Calyx 2-lipped, the upper lip deeply 2-cleft, 

 the lower with 3 teeth. 



2. LJlex — Calyx 2-lipped, yellow. 



3. Sarothamnus. — Calyx 2-lipped, the upper lip with 2 

 minute teeth, the lower with 3. 



Tribe 2. Trifoliece. Herbs {rarely shrubs} : leaflets 3, generally 

 toothed: stamens usually diadelphous 



4. On6nis.— Herbs or shrubs : calyx 5-cleft : stamens mona- 

 delphous. 



5. Trigonella. — Racemes short : pod longer than calyx, 

 curved, dehiscent. 



6. Medicago. — Racemes short : pod usually spiral. 



7. Melil6tus. — Racemes long : pod short, indehiscent. 



8. Trif6lium. — Flowers capitate : pod short, indehiscent. 



Group II. — Leaves without tendrils, impdripinnate : leaflets 5, or 

 more 



Tribe 3. Lbteaz. — Herbs : leaflets entire : stamens monadelphous or 

 diadelphous : pod 2-valved, without a longitudinal septum 



9. AnthyYlis. — Calyx inflated, enclosing the short pod: 

 stamens monadelphous. 



10. Lotus. — Calyx not inflated: stamens diadelphous: pod 

 longer than calyx. 



Tribe 4. Astragaleai. — Herbs: leaflets entire: stamens diadel- 

 phous : pod 2-valved, with a longitudinal septum 

 n. Astragalus.— Keel of corolla blunt. 



12. Oxytropis. — Keel of corolla pointed. 



Tribe 5. Hedysdrece. — Herbs : stamens diadelphous : pod inde- 

 hiscent, jointed. 



13. ORNfTHOPUS. — Pod compressed, curved, with many oval, 

 i-seeded joints : pinnate -leaf below umbel : keel blunt. 



14. Coronilla. — Pod little, if at all, compressed, contracted 

 at joints : keel pointed. 



15. Arthrol6bium. — Pod straight, compressed, many-jointed, 

 scarcely contracted at joints : with no leaf below umbel. 



