98 PAPILIONACE.E. 



on dry gravelly ground. The species is spread all over western Europe, 

 wherever the ground is stony, and as far east as northern and central 

 Germany and southwards to Teneriffe, but not to the Mediterranean. Ger, 

 Stechginster, Fr. Genet piquant. 



If the keel be pressed down it will begin to split against the 

 staminal tube, till pollen is suddenly ejected in a little cloud. 

 {Cp. Cytisus). 



CYTISUS. 50 VII. ^* 



Broom. 

 Shrubs with green angular stems, leaves small, three- 

 foliate or simple. Flowers yellow or white, solitary or 

 fascicled in the leaf-axils. Calyx with short broad lips. 

 Stamens all joined into a tube ; anthers alternately 

 longer and attached near their base, or shorter and 

 lightly attached by the middle. Pod opening by both 

 edges ; seeds many with fleshy outgrowth (strophiole) 

 near the hilum, smooth and olive green in colour. 



Species about 40 belonging mostly to the countries bordering 

 the Mediterranean, from one of the islands clythos, it was 

 said by Pliny to have taken its name. 



Flowers white, J^ inch C. monspessulanus. 



Flowers yellow, i inch C. scoparius. 



Cytisus monspessulanus (Genista candicans L.) ; 

 VII * * I ; White Broom. Stems thin, closely grooved- 

 Flowers white, often several together in a leaf-axil, J^ 

 inch or less. Style glabrous, short, curving upwards but 

 not coiled as in C. scoparius. Pod hairy all over, small. 



By road-sides in Ootacamund introduced from European 

 gardens, native of Algeria. J^yson igS 6. Bourne 4^^!. 



Pollen is pushed out by the weight of the insect depressing the keel. 

 There is no explosion as with C. scoparius. 



Cytisus scoparius Link ; VII * * 2 ; common Yellow 

 Broom. Foliage very dark-green ; upper leaves reduced 

 to single leaflets. Flowers usually solitary in the leaf- 

 axils, yellow. Style hairy, very long and coiled. Pod 



