6o Leguminosae 



Tribe i. Genisteae. Shrubs or herbs with simple or 

 palmate leaves. Leaflets entire. Calyx 2-lipped. All 

 ten stamens usually united. Pod 2-valved. 



Herbs. Leaves palmate. Calyx deeply 2-lipped. 

 Pod coriaceous with spongy septa. *Lupinus. 



Shrubs. Leaves i -foliate. Calyx with two short 

 deeply toothed lips. Genista. 



Shrubs. Mature leaves spinescent or scaly. Calyx 

 deeply 2-lipped, coloured. Ulex. 



Shrubs. Leaves 1-3-foliate or absent. Calyx with 

 two short minutely toothed lips. Cytisus. 



Tribe 2. Trifolieae. Herbs. Leaves usually pinnately 

 3-foliate. Veins of leaflets ending in teeth. Upper 

 stamen usually free. 



A. All ten stamens united. Keel beaked. Ononis. 



B. Upper stamen separate. Keel obtuse. 



a. Corolla deciduous, claws of petals free. 



I. Flowers in heads, umbels, or short racemes. 

 Pod straight or curved, mostly linear, often beaked. 



Trigonella. 

 Pod usually spiral, sometimes broadly oval and bent. 



Medicago. 



n. Flowers in long racemes. Pods obovoid. 



Melilotus. 



b. Corolla usually persistent, claws of all or of four 

 lower petals united to the staminal tube. Trifolium. 



Tribe 3. Loteae. Herbs. Leaves pinnate with entire 

 leaflets. Upper stamen separate or united. Pod 2-valved 

 without longitudinal septum. 



