106 CORYMBIFER.^. [part i. 



almost cylindrical. The true Chamomile {A?i- 

 themis nohilis) greatly resembles the Chrysanthe- 

 mum in its flowers : but they are distinguished 

 by haying a chafiy receptacle, and the fruit 

 ha^dng a membranous margin. The smell of 

 the Chamomile is aromatic, and its qualities 

 highly tonic. The Yarrow {Achillea miUefolium) 

 is another plant destitute of pappus, but with a 

 chaffy receptacle : it is also remarkable for its 

 leayes. which are doubly pinnatifid. 



It will be seen by the aboye enumeration, that 

 in many plants belonging to this diyision, the 

 pappus is entirely wanting, and in others it wXi. 

 be fotmd to assume a different form to that 

 which it bears in the other tribes. Thus, in the 

 Bur-Marigold {Bidens), the pappus consists of 

 from two to fiye erect awns, which are covered 

 with yery small, bent bristles. The genus Sene- 

 cio has soft, hairy pappus, as may be seen in 

 the common Groundsel (S. vulgaris) ; the leaves 

 of this weed are pinnatifid, and somewhat stem- 

 clasping, and the flowers have no ray florets. In 

 •other species of this division, however, the ray 

 florets are very conspicuous : as, for example, in 

 the common yellow Ragwort (5. Jacola^a)^ in 

 the great fen Ragwort, or Bird's tongue (5. 

 paludosa)^ and in the purple Jacobsea (S-elegajis), 

 Nearly alhed to Senecio, is the genus Cineraria, 

 so much, indeed, that Professor De Candolle, 



