LEGUMIXOSJ3. (PEA FAMILY.) 47 



ovate, mostly acute, about an inch long ; the white or purplish flowers in short, closo 

 racemes; calyx at length inflated; stamens monadelphous. 



9. AMORPHA, L. 



Calyx obconical, nearly equally 5-toothed; wings and keel wanting; the standard erect, 

 folded together. Stamens slightly united at the base, exserted. Pod 1-2-seeded. Shrubs, 

 glandular-punctate; the unequally pinnate leaves with the leaflets stipellate; flowers 

 purple or violet in dense clustered terminal spikes. 



1. A. Californica, Nutt. Three to eight feet high, puberulent; leaflets 5 to 7 

 pairs, oblong-elliptical, obtuse, mucronulate, an inch long; spikes 1 to 6 inches long. 



10. GLYCYRRHIZA, L. LIQUORICE. 



Flowers nearly as in Astragalus. Erect perennial herbs, glandular viscid; leaves une- 

 qually pinnate; stipules deciduous; flowers in dense axillary pedunculate spikes; root 

 large and sweet. 



1. G. lepidota, Nutt., var. glutinosa,Wat. Two or three feet high; flowers yellow- 

 ish white or pinkish; the short peduncles covered with stout viscid hairs. Bare; on 

 water courses. 



^.jjl. ASTRAGALUS, Tourn. RATTLE-WEED. 



Calyx 5-toothed. Corolla and its slender clawed petals usually narrow; keel obtuse. 

 Stamens diadelphous. Legume very various, commonly turgid or inflated, one or both 

 sutures usually projecting inward, frequently so much as to divide the cell into two. 

 Seeds few or many on slender stalks, generally small for the size of the pod. Herbs, or 

 a few woody at the base; with unequally pinnate leaves, and small flowers, chiefly in 

 simple spikes or racemes from the axils. 



A vast genus of five or six hundred species; about fifty on the Pacific coast. The fruit 

 is needed for the determination of the species. 



* Root annual; pod not inflated, 2-celled. 



Pod wrinkled, 2-lobed, 2-seeded A. didymocarpus. 1 



Pod not wrinkled, several-seeded A. tener. 2 



* * Hoot perennial; pod bladdery-inflated, 1-celled. 



Stipe a little exceeding the calyx; pod with pointed ends A. oxyphysus. 3 



Stipe much exceeding the calyx; pod obtuse, one-sided A. leucophyllus. 4 



Stipe, none; pod large and very bladdery, many seeded; leaflets mostly in many pairs; 

 spike or raceme many flowered. 



Stipules distinct; pod rather firm walled A. Crotalariae. 5 



Stipules united; pod thin A. Menziesii. G 



Stipules membraiiaceous; corolla yellowish A. Douglasii. 7 



