70 
2G. LEGUMINOS/E. 
Order XXVI. LEGUMINOSiE. 
Cal. inferior. Sep. 5, more or less combined, odd one anterior. 
Cor. jjapilionaceous (in our plants), inserted into the base of the 
calyx. Pet. 5, odd one superior. Stam. 10 (in our jdants), 
mouadelphous or diadeljihous. Ovary free, 1 -celled. Fruit a 
legume ; placenta on the uj)per suture ; style from the upper 
suture. Embryo bent over the edge of the cotyledons, or straight. 
— All our plants have papilionaceous dowers and 10 stamens in 
one bundle or in two bundles of 9 and 1. 
Tribe I. LOTEjT!. Pod continuous. Cotyledons rising above 
the ground and becoming green leaves. Leaves of 1 oi* 3 
leadets or pinnate with an odd one. 
* Leaflet solitary. Stamens mouadelphous. 
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. Genista. Cal. 2-lipped, upper bifld, lower trifid. Style 
subulate, ascenthng. Stigma terminal, oblique, introrse. 
** Jjeaf of 3 leaflets. Stamens mouadelphous. 
3. Sarothamnus. Cal. 2-lipped, the upper with 2, the lower 
with 3 teeth. Styde long, curved, thickened upwards, chan- 
neled within. Stigma terminal, capitate, small. Pod flat. 
4. Ononis. Cal. 5-cleft, campanulate, segments narrow, the 
low er ones longer. Keel beaked. Style dliform, ascending. 
Stigma terminal, subcapitate. 
*** Leaf of 3 leaflets. Stamens diadelphous. 
5. Medicago. Cal. with 5 nearly equal teeth. Keel obtuse. 
Filaments of the stamens dliform. Ovaries curved. Pod 
1 -celled, falcate or spiral. Seeds 1 or numerous. 
6. Melilotus. Cal. with 5 nearly equal teeth. Keel obtuse. 
Filaments dliform, not united with the claws of the petals. 
Ovary straight. Pod subglobose or oblong, 1 -celled, 1 — 4- 
seeded, longer than the calyx. Pet. distinct, deciduous. 
7. Trifolium. Cal. with 5 unequal teeth. Keel obtuse. 
Filaments slightly enlarged upwards and more or less united 
with the claws of the ])etals. 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 dlaments are dliform. 
8. Lotus. Cal. with 5 nearly equal teeth. Keel ascemhng, 
with a narrowed point (beak). Wings connivent at their 
