120 LEGUMINOSJE. 



leaves and yellow flowers in racemes. 



TRIBE n. GENISTE.E. Herbs or shrubs with palmately com- 

 pound or simple leaves and various colored flowers in racemes or 

 solitary. Stamens 10, monadelphous : anthers of two forms. 

 Radical, incurved or inflexed. 



2. Lupinus. Herbs, rarely shrubby, with various colored flowers in 

 racemes: leaves digitate, mostly of more than 3 leaflets: calyx 

 deeply bilabiate: upper petal with recurved sides; keel falcate: 

 pods large, straight. 



5. Ulex. Spinescent shrubs with inconspicuous simple leaves and yel- 

 low axillary flowers. 



4. Cytisns. Shrubs with green, often angular branches, palmately or 



pinnately trifoliolate leaves and solitary or racemose yellow flowers. 



TRIBE in. TBIFOLIE^E. Mostly low herbs with palmately or 

 pinnately trifoliolate, rarely 5-7-foliolate leaves and axillary or 

 terminal, racemose, spicate, capitate or umbellate inflorescence. 

 Corolla papilionaceous. Calyx 5-lobed. Stamens diadelphous 

 (9 and 1). 



5. Medicago. Herbaceous or rarely shrubby plants with palmately tri- 



foliolate leaves and axillary peduncles: petals free from the 

 stamens, deciduoiis: pods 1 several-seeded, falcate-incurved, or 

 coiled into a spiral. 



6. Melilotus. Erect herbs with pinnately trifoliolate leaves and small 



fragrant flowers in slender axillary racemes: petals free from the 

 stamens, deciduous: pods ovoid, small, scarcely dehiscent, 1 2 

 seeded. 



7. Trifolium. Herbs with palmately or pinnately trifoliolate, rarely 



5 7-foliolate leaves and mostly very many flowers on axillary or 

 terminal peduncles: corolla persistent: the banner and wings com- 

 monly coherent with the staminal tube: pods concealed within or 

 but little exserted from the calyx. 1 6-seeded. 



TRIBE iv. LOTE^E. Herbs or shrubs with pinnately 1-many- 

 foliolate leaves and various colored flowers capitate or"umbellate 

 on axillary peduncles, rarely solitary. 



8. Lotus. Herbaceous or suffrutescent plants with pinnate, usually 



3 many-foliolate leaves and solitary or numerous flowers on axil- 

 lary peduncles with or without a 1 3-foliolate bract at summit: 

 corolla deciduous, the banner often remote from the other petals- 

 pods oblong to linear, terete, turgid or plain, few or many-seeded. 



TRIBE v. GALEGEM. Erect herbs, or shrubs with unequally 

 pinnate, seldom stipellate leaves and axillary or terminal, race- 

 mose or spicate inflorescence. Corolla papilionaceous or other- 

 wise irregular. Stamens diadelphous (9 and 1), or sometimes 

 monadelphous. Pods continuous, 1 -celled, several -seeded, de- 

 hiscent ; or 1-2-seeded and indehiscent. Radicle incurved or in- 

 flexed. 



9. Fsoralea. Herbs with trifoliolate leaves and axillary spikes of 

 rather small flowers; herbage glandular-dotted: stamens mona- 

 delphous or diadelphous: pods indehiscent, 1-seeded. 



10. Petalostemon. Herbs with gland-dotted herbage unequally pinnate 



