454 



FABACEAE 



Family 65. FABACEAE. Pea Family. 



Herbs, shrubs, or trees, with alternate, mostly pinnately or palmately 

 compound leaves with stipules. Flowers perfect, rarely polygamo-dioeci- 

 ous, irregular, zygomorphic. Calyx of 5, or rarely 4, more or less united 

 sepals, or sometimes by the complete union of some of the sepals beconiing 

 2-lipped. Corolla papilionaceous, i. e., consisting of 5 more or less united 

 or distinct petals, of which the upper (banner or standard) is broader and 

 surrounds the rest, the 2 lateral ones (wings) are curved upwards, and the 

 2 lowest (keel) more or less united, forming a boat-shaped organ. Stamens 

 usually 10, sometimes 9 or 5; filaments diadelphous (9 and 1), monadelphous, 

 orrarely distinct. Pistil 1, superior. Fruit a 2-valved or indehiscent legume, 

 1-celled or by the intrusion of the sutures 2-celled, or a loment, i. e., divided 

 by false cross-partitions into several cells. 



Tribe I. 

 Tribe II. 



SOPHORE 

 PODALYRTEAE. 



Filaments distinct. 

 Leaves pinnate. 

 Leaves digitately 3-follolate. 

 Filaments monadelphous or diadelphous. 



RacMs of the leaves not produced into a tendril or bristle-Uke appendage, represent- 

 ing the terminal leaflet. 

 Fruit 2-valved or indehiscent, not a loment. 



Foliage not glandular-dotted. 



Anthers of 2 kinds; filaments monadelphous; leaves digitate; calyx 2- 



lipped. Tribe III. Genisteae. 



Anthers all alike; filaments diadelphous; calyx 5-toothed. 



Leaflets toothed. Tribe IV, TrifolieaE. 



Leaflets not toothed. 



Filaments all or at least 5 of them (alternately) dilated above; 



flowers umbellate, or solitary. Tribe V. Loteae, 



Filaments all fiUform; flowers racemose or capitate. 



Herbs, shrubs, or trees; keel of the corolla neither curved nor 



coiled. Tribe VII. Galegeae. 



Herbaceous vines; keel of the corolla in ours coiled or at least 

 curved. Tribe XI, Phaseoleae. 



Filaments all filiform; leaves odd-pinnate; flowers racemose or 

 capitate. Tribe VII. Galegeae. 



Foliage glandular-dotted. 



Pod prickly. Tribe VIII. Glycyrrhizeae. 



Pod not prickly. Tribe VI. Psoraleae. 



Fruit a loment, i. e., breaking up transversely into 1-seeded indehiscent reticulate 

 Intemodes. Tribe IX. Hedysare.\e. 



Rachis of the leaves produced into a tendril or bristle-like appendage. 



Tribe X. ViciEAE. 



Tribe I. SOPHOREAE. 

 One genus. * ■ 



TRIBE II. PODALYRIEAE. 

 One genus. 



Tribe III. GENISTEAE. 

 One genus. 



•Tribe IV. TRIFOLIEAE. 



Leaves digitate, in most 3-foliolate. 

 Leaves pinnately 3-foliolate. 



Pod cm-ved or coiled. 



Pod straight, 



Tribe V. LOTEAE. 



Keel prolonged into an incurved beak; leaves odd-pinnate. 

 Stipules foliaceous; flowers in umbels. 

 Stipules gland-like; flowers mostly solitary. 

 Keel blunt, not beaked. 



Legumes straight or nearly so, sicute, deliiscent. 

 Stipules foliaceous; leaves regulaly odd-pinnate. 

 Stipules gland-like; leaves irregularly even-pinnate. 

 Legumes curved, indehiscent, caudate-acuminate. 



1. SoPHoaA. 



2. THERMOPSIS 



3. LUPINTJS. 



4. Trifouum. 



5. Medicago. 



6. Melilotus 



7. Lotus. 

 s. acmispon. 



9. HOSACKIA- 



10. AXISOLOTUS, 



11. SYRMATXUM. 



Tribe VI. PSORALEAE. 



Petal 1 (standard) ; leaves odd-pinnate. 12 Amorpha. 



Petals 5. 



Wings and keel free from the filament-tube; ovules solitary; leaves digitate. 



13. PSORALEA. 



