western provinces of Persia, but its fruit again distinguishes 
it clearly, as DeCandolle has correctly stated. 
In the accompanying figure the more beautiful features of 
this species are hardly visible, nor indeed in plates executed 
cheaply like those of the present work could they be repre- 
sented. They consist in the very clear bright blue of the 
radial florets, contrasted with the crimson of the centre, and 
in the silvery glittering appearance of the lacerated scales of 
the involucre, which are a delicate green in the centre, with 
a brown border and a delicate dry membranous pectinated 
fringe. 
It is a hardy annual, growing about a foot high in any 
good garden soil, and requiring the same treatment as the 
old Centaurea americana. 
It flowers nearly all the summer and autumn. 
