SYNGENESIA— POLYG.-SUPERF. Pyrethrum. 451 



Engl. Bot. V. 8. t. 540. Curt. Lond.fasc, 6. t. 60, Mart. Rust, 

 t. 1 10. Hook. Scot. 246. Rail Syn. 182. Ger. Em. 743./. Fl. 

 Dan. t. 995. Bull. Fr. /.339. Clus. Hist. v. 1.334./. Lob. Ic. 

 552./ 



Ch. minus. Camer. Epit. 794./ 



Ch. segetum vulgare glaucum. Moris, v. 3. 15. sect. 6. t.4.f. 1. 



Bellis liitea, foliis profunde incisis, major et minor. Bauh. Pm,262. 



Corn Marygold. Feliv. H. Brit. t. 19./ 6. 



/3. Chrysanthemum segetum nostras, folio glauco multiscisso ma- 

 jus, flora minore. Raii Sijn. 183. 



In corn fields, turnip fields, &c. a troublesome weed. 



Annual. June — August. 



Root tapering, rather small. Herb smooth, of a glaucous green. 

 Stem alternately branched, bushy, leafy, angular. Leaves alter- 

 nate, oblong, variously toothed or cut, rather succulent j clasp- 

 ing at the base. Fl. numerous, large, terminal, solitary, on 

 naked hollow stalks swelling upward, their colour a uniform 

 brilliant yellow. Calyx-scales green, with a broad membranous 

 border. Florets of the radius obovate, two-ribbed, abrupt. Seeds 

 compressed, grooved, smooth, without any crown or membra- 

 nous border, which is erroneously attributed to them by the 

 description in Engl. Bot., the plate of which is correct. 



(3, a variety with more jagged leaves, and smaller Jlowers, was 

 noticed near Glastonbury by Plukenet. No other person seems 

 to have met with it. 



However odious to the farmer, especially in his turnip fields, this 

 is indisputably a splendid weed, almost as handsome as Chry- 

 santhemum coronarium. It can only be eradicated by hand, be- 

 fore the seeds ripen. 



406. PYRETHRUM. Feverfew. 



Hall. Hist. V. 1. 40. Fl. Br. 900. PVilld. Sp. PI. v. 3. 2150. Gcertn. 



t. 169. 

 Matricaria. Tourn. t.2S\. Lam. t. 678. / 1. 



Nat. Ortl. see w. 404'. 



Common Cal. hemispherical, closely imbricated, with several 

 oblong, nearly equal, bluntish scales, bordered with an 

 equal membrane all round. Cor. compound, radiant; 

 Jlorets of the disk numerous, perfect, tubular, with 5 equal 

 spreading segments; those of the radius numerous, ligu- 

 late, spreading, elliptic-oblong, with 3 terminal teeth. 

 Filam. in the tubular florets only, capillary, short. Ajith. 

 in a cylindrical tube. Germ, in all the florets angular, 

 abrupt. Style thread-shaped, not prominent. Stigmas 

 spreading, obtuse, somewhat notched. Seed-vessel none, 

 the calyx remaining unchanged. Seed in all the florets 

 2 G 2 



