PEA FAMILY 115 



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



Tribe i. Gemstece. — Shrubs: leaflets entire: stamefis mo7iadel- 



phous 



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

 the lower with 3 teeth. 



2. Ulex — Calyx 2-lipped, yellow. 



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

 minute teeth, the lower with 3. 



Tribe 2. Trifbliece. Herbs {rarely shrubs) : leaflets 3, geiierally 

 toothed: stamens usually diadelphous 



4. Ononis. — Herbs or shrubs : calyx 5-cleft : staineiis mona- 

 delphous. 



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

 curved, dehiscent. 



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



7. Melilotus. — Racefnes long : pod short, indehiscent. 



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



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



more 



Tribe 3. Lbtece. — Herbs : leaflets entire : staniens monadelphotis or 

 diadelphous : pod 2-valved, without a longitudinal septum 



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

 stamens monadelphous. 



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

 longer than calyx. 



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

 phous : pod 2-valved, with a lofigitudinal septum 



11. Astragalus. — Keel of corolla blunt. 



12. OxYTROPis. — Keel of corolla pointed. 



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

 hiscent, Jointed. 



13. Ornithopus. — 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 pointedc 



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

 scarcely contracted at joints : with no leaf below umbel. 



