Pulse Family 



205 



Flowers regular, stamens distinct. 1. PROSOPIS. 



Flowers irregular. 



Stamens distinct; shrub; flowers solitary, purple. 2. XYLOTHERMIA. 

 Stamens diadelphous or monodelphous. 



Leaves palmately 5-1 1-foliate. 3. LUPINUS. 



Leaves 3-foliate. 



Herbage not glandular-dotted. 

 Herbs. 



Flowers in axillary racemes or spikes. 



Pods spirally coiled. 5. MEDICAGO. 



Pods small, wrinkled. 6. MELJLOTUS. 



Flowers capitate. 7. TRIFOLIUM. 



Shrub. 4. CYTISUS. 



Herbage glandular dotted. 9. PSORALEA. 



Leaves unequally pinnate; tendrils wanting. 

 Herbage glandular-dotted. 



Shrub; pods not prickly. 10. AMORPHA. 



Perennial herb; pods prickly. 12. GLYCYRRBIZA. 



Herbage not glandular-dotted. 



Flowers in spikes or racemes. 11. ASTRAGALUS. 



Flowers solitary or umbellate. 8. LOTUS. 



Leaves pinnate; tendrils present. 



Style villous all around at apex. 13. VICIA. 



Style villous on l side. 14. LATHYRUS. 



1. PROSOPIS L. 



Trees or shrubs often armed with axillary spines or 

 spinescent stipules. Leaves bipinnate with 1 or 2 pairs 

 of pinnae and usually numerous small entire leaflets. 

 Flowers greenish, regular, in cylindric or globose axillary 

 pedunculate spikes. Calyx campanulate, the teeth very 

 short and valvate. Petals 5, valvate. united below the 

 middle or at length free, woolly on the inner side. 

 Stamens 10, free and exserted ; anthers tipped with a 

 deciduous gland. Ovary villous ; style filiform. Pod 

 linear compressed or nearly terete, straight, falcate or 

 twisted, coriaceous and indehiscent, usually pulpy with- 

 in. Seeds numerous, ovate, compressed. 



1. P. juliflora (Swartz) DC. (ALGAROBAOF MESQUIT.) A shrub 

 or small tree, much branched, the branches widely spreading ; 

 spines axillary ; petioles glabrous or sparsely puberulent ; leaflets 

 8-12 pairs, the pairs about 1 cm. distant, linear, 12-15 mm. long, 



