CL. XIX.] SYNGENESIA POLYGAMIA STJPERFLTJA. 331 



generally crowned with a slight border. Receptacle convex, 

 covered with lance-shaped chaffy scales. Named from an- 

 themos t a flower. 405. 



1. A. maritima. Sea Chamomile. Leaves twice pinnatifid, acute, 

 fleshy, dotted, somewhat hairy ; stem prostrate ; scales of the re- 

 ceptacle acute, prominent. Stems about eight inches long, an- 

 gular, branched, cottony : inner scales of the calyx torn : disk of 

 the flowers convex, yellow : ray cream-coloured. Annual : flowers 

 in July : found at Sunderland, in Durham, by Mr. E. Robson. 

 Eng. Bot. pi. 2370. Eng.Fl.vo}. iii. p. 456. 1214. 



2. A. nobilis. Common Chamomile. Leaves twice pinnate, with 

 semi- cylindrical, acute, somewhat downy segments ; stem procum- 

 bent ; scales of the receptacle membranous, obtuse, shorter than 



the disk. Stems about eight inches long, branched, furrowed, 



downy : flowers terminal, solitary, with a convex yellow disk and 

 white spreading ray. The leaves and flowers have a strong smell, 

 and a bitter taste. The latter are used in infusion as a stomachic 

 and antispasmodic. Perennial : flowers in August and Septem- 

 ber : grows in dry pastures in various parts of England. Eng. Bot. 

 vol. xiv. pi. 980. Eng. Fl. vol. iii. p. 456. 1215. 



3. A, arve'nsis. Corn Chamomile. Leaves twice pinnatifid, hairy, 

 with narrow lance-shaped segments ; receptacle conical, with 

 lance-shaped, acute, prominent scales ; seeds crowned with a bor- 

 der. Stem from twelve to eighteen inches high, erect, much 



branched, covered with soft hairs : flowers solitary, on long termi- 

 nal stalks, their disk and scales bright-yellow, the ray white. Bi- 

 ennial : flowers in June and July : grows in fields and waste 

 ground : rare. Eng. Bot. vol. ix. pi. 602. Eng. Fl. vol. iii. p. 457. 



1216. 



4. A. Cotula. Stinking Chamomile. Leaves twice pinnatifid, 

 smooth, with linear segments; receptacle conical, with bristle- 

 shaped scales ; seeds without a border. Stem a foot or more 



high, erect, bushy : flowers solitary, on terminal striated stalks : 

 disk pale-yellow : ray white. Fetid and acrid, blistering the skin. 

 Annual : flowers in June and July : grows in corn-fields and waste 

 ground. Eng. Bot. vol.xxv. pi. 1772. Eng. Fl. vol. iii. p. 458. 1217. 



5. A. tinctdria. Ox-eye Chamomile. Leaves twice pinnatifid, 

 serrate, downy beneath ; stem erect, corymbose ; seeds crowned 



with a membranous undivided border. Stem eighteen inches 



high, angular : leaves sessile, with acute, notched segments, cot- 

 tony beneath : flowers large, bright-yellow in both the ray and 

 disk. Perennial : flowers in July and August. Found in Essex 

 by Mr. Dickson, and near Forfar by Mr. G. Don. Eng. Bot. vol. 

 xxi. pi. 1472. Eng.Fl. vol. iii. p. 459. 1218. 



41. ACHILLA A. MILFOIL. 



Common calyx egg-shaped, imbricated, with several egg- 

 shaped, acute, close scales. Compound corolla rayed ; florets 

 of the disk perfect, tubular, with five equal, spreading seg- 

 ments ; those of the ray from five to ten, flat, roundish, in- 

 versely heart-shaped, with a small intermediate lobe. Fila- 

 ments hair-like, very short 5 anthers united into a cylindrical 

 tube, Germen small, inversely heart-shaped. Style thread- 

 ishaped, as long as the stamens ; stigmas obtuse, spreading. 



