LEGUMINOSjE. 
(17 
* Stamens monudelphous. 
1. Ulex. Cal. of 2 parts, the upper with 3, the lower with 
2 teeth, a bract on each side at the base. Pod turgid, few- 
seeded, scarcely longer than the calyx. 
2. Sarothamnus. 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 fat. 
3. Genista. Cal. 2-lipped, the upper bifid, the lower trifid. 
Style subulate, ascending. Stigma terminal, oblique, in- 
trorsc. 
4. Ononis. Cal. 5-cleft, campanulate, segments narrow, the 
lower ones longer. Keel beaked. Style filiform, ascending. 
Stigma terminal, subcapitate. 
5. Anthyllis. Cal. tubular, inflated, 5-clcft, segments un- 
equal. Keel not beaked. Style filiform. Stigma capitate. 
** Stamens diadelphons, pod l-celled. 
6. Medicago. Cal. with 5 nearly equal teeth. Keel obtuse. 
Filaments of the stamens filiform. Ovaries curved. Pod 
l-celled, falcate or spiral. Seeds 1 or numerous. 
7. Melilotus. Cal, with 5 nearly equal teeth. Keel obtuse. 
Filaments filiform. Ovary straight. Pod subglobose or 
oblong, l-celled, 1 — 4-seeded, longer than the calyx. Pet. 
distinct, deciduous. 
8. Trifolium. 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, which is scarcely 
a true Trifolium, the pod is 8 -seeded and the filaments are 
filiform. 
9. 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 partitions. 
*** Stamens diadelphons, pod impeifectly 2-celled. 
10. Oxytropis. Cal. with 5 teeth. Keel with a narroio 
straight point. Pod imperfectly 2-celled, cells formed by the 
inflexed margin of the upper suture. 
11. Astragalus. Cal. with 5 teeth. Keel obtuse. Pods 
imperfectly 2-celled, cells formed by the inflexed margin of the 
lower suture. 
