25, LEGUMINOSAE. 67 
Order XXV. LEGUMINOS&. 
Cal. inferior. Sep. 5, more or less combined, odd one anterior. 
Cor. papilionaceous (in our plants), inserted into the base of the 
calyx. Pet. 5, odd one superior. Stam. 10 (in our plants), 
monadelphous or diadelphous. Ovary free, 1-celled. Fruit a 
legume ; placenta on the upper suture; style from the upper 
suture. Iimbryo bent over the edge of the cotyledons, or straight. 
—All our plants have papilionaceous flowers and 10 stamens in 
one bundle or in two bundles of 9 and 1. 
Tribe Il. LOTE&. Pod continuous. Cotyledons rising above 
the ground and becoming green leaves. Leaves of | or 3 
leaflets or pinnate with an odd one. 
* Leaflet solitary. Stamens monadelphous. 
1. Utex. 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. 
Genista. Cal. 2-lipped, upper bifid, lower trifid. Style 
subulate, ascending. Stigma terminal, oblique, imtrorse.— 
Many foreign species have trifoliate leaves. 
** Leaf of 3 leaflets. Stamens monadelphous. 
3. 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 flat. 
tw 
4. Ononts. 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. Mepicaco. Cal. with 5 nearly equal teeth. Keel obtuse. 
Filaments of the stamens filiform. Ovaries curved. Pod 
1-celled, faleate or spiral. Seeds 1 or numerous. 
6. Mexitorus. 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 calyx. Pet. distinct, deciduous. 
7. Trirotium. 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 filiform. 
