Composite? Doronicum. 



261 



habit referred to the genus Aronlcum, but the scapes bear 

 only one flower-head each. 



35. DORONlCUM. 



Herbs with few cauline and simple radical leaves, and yellow 

 flowers. Involucral bracts in two or three series, equal. Disk- 

 florets perfect, ray female, destitute 

 of pappus. The species are natives 

 of Europe and Asia. The deriva- 

 tion of the name is obscure, though 

 it is said to be of Arabic origin. 



1. D. Caucdsicum (fig. 146). 

 Valuable on account of its early and 

 abundant orange-coloured flower- 

 heads, which appear in April and 

 May.. 



2. D. Pardalidnches. Common 

 Leopard's Bane. This is a com- 

 moner plant in English gardens, 

 and naturalised in some districts. 

 It is near the foregoing^ but taller, 

 and its pale yellow flower-heads 

 are not so early. 



36. SEN^CIO. 



This vast genus contains several 

 hundred species, but only one need rig . i 46 . Doronicum ca^casicum. 

 occupy our attention here. The 



chief chaiacter is the involucre of one row of equal bracts. 

 Flower-heads often destitute of ray-florets, as in S. vulgaris, the 

 common Groundsel ; or rayed, as in S. Jacobcea, the Eagwort. 

 The name is derived from senex, an old man, in allusion to the 

 abundant silvery pappus, or, as it is sometimes explained, the 

 naked or bald receptacle. 



1. S. elegans. This commonly bears the name of Jacobcea, 

 which belongs to another species. It is a very familiar plant 

 in gardens, especially the double purple variety. There are 

 also white, flesh, rose, and crimson varieties, which will come 

 true from seeds. South Africa, 



