212 



Centaurea, Linn. 



[C. Jacea, Linn. Brown-radiant Knapweed. 



Bab. Man. 203. Hook. St. Fl. App. 532. 

 A rare casual ; likely from imported grass or other seed. 



August September. 

 1. Hardwick, June 9th, 1775. Sir. J. Cullum.] 



1. C. nlgra, Linn. Black Knapweed. 



Bab. Man. 203,4. Hook. St. Fl. 222. H. & S. 48. Hist. Yarm. 

 Hist. Wher. Top. Bot. SufL E. and W. Galp. 81. 



Herbaceous perennial ; frequent in pastures, &c. 



June to September. 

 Common in all the districts. 



c. nigres-cens, Bab. 



5. Sea-dyke, Bawdsey, dwarf fprm 1 1. 

 Earliest record 1773. Sir J. Cullum. 



2. C. CyarLTlS. Corn Bluebottle. 



Bab. Man. 204. Hook. St. Fl. 222. H. & S. 48. Hist. Fram. 

 Hist. Yarm. Hist. Wher. Top. Bot. Suff. E. and W. 



Tall annual ; in cornfields. June to August. 



In all the districts, but less plentiful than formerly, 

 through improved farming. 



Earliest record 1773. Sir J. Cullum. 



3. C. ScablOSa, Linn. Great Knapweed. Mat/ellon. 



Bab. Man. 204. Hook. St. Fl. 222. H. & S. 48. Hist. Yarm. 

 Hist. Wher. Top. Bot. Suff. E. and W. Galp. 81. 



Herbaceous perennial ; borders of fields and hedges ; 

 more abundant in Suffolk than in most counties. 



July to September. 



Freely distributed throughout all the districts. 

 Earliest record 1773. Sir J. Cullum. 



|4. C. SOlstitiallS, Linn. Yellow Star Thistle. 



Bab. Man. 204,5. Hook. St. Fl. 223. H. & S. 49. 



Herbaceous annual ; in Suffolk only as a casual on cul- 

 tivated land July to September. 



1. Euston||; Bowbeck, Bardwell 1 1 and Honington, 

 among Sainfoin : Pakenham, among Lucerne, Hb. Cas. : 



