318 



DIPSACE^E. 



on a chalky soil, not uncommon. Well distinguished 

 from the last by its radiate flowers and cut leaves. The 

 foliage is of a much lighter hue, and the flowers lilac 

 rather than purple. M. July, August. Perennial. 



KNAUTIA ARVENSIS (Field Scabious). 



3. KXAUTIA (Field Scabious). 



1. K. arvensis (Field Scabious). Root leaves simple ; 

 upper pinnatifid ; inner calyx with a fringe of 816 

 teeth ; heads convex. Corn-fields and way-sides, com- 

 mon. A tall bristly plant, 2 3 feet high, not much 



