196 45. COMPOSITE. 



3. M. Chamomil'la (L.) ; 1. bipinnate smooth, segments capil- 

 lary simple or divided, heads solitary or subcorymhose, receptacle 

 hollow conical, phyll. linear blunt.— i^. B. 1232.— St. erect, 1 foot 

 high, branched. Heads on long naked stalks or forming an 

 irregular corymb ; disk yellow ; ray white. — Cultivated and 

 waste ground. A. VI. V'll. Wild Chamomile. E. I. 



17. (16.) CHBTSAN'TH23MTm Linn. 



1. C. Leucan'tJiemum (L.) ; lower 1. obovate stalked, stem-1. 

 oblong blunt cut sessile pinnatifid at the \)a,a6, phyll. lanceolate 

 blunt loith a narroio dark purple membranous margin, fi. of ray 

 white, fr. without a border.—^. B. 601. St. 2. 11.— St._ erect, 

 1 — 2 feet high, simple, striatg. Lower 1. narrowing into a 

 winged and auricled stalk. Heads solitary, terminal, large ; 

 disk yellow.— fields. P. VI.— VIII. Ox-eye. E. S. I. 



t2. C. seg'efam (L.) ; 1. glabrous toothed dilated outwards 

 and lobed, upper 1. clasping, jjhyll. ovate blunt, with a broad mem- 

 branous margin, fl. of ray yellow. — E. B. 540. — St. a foot high, 

 alternately branched, angular. L. incise-serrate or lobed in the 

 upper part, simply toothed below. Heads solitary, terminal. — 

 Oom-tields. A. VI.— VIII. Corn-Marigold. E. S. I. 



18. (23.) Dio'tis Besf. Cotton-weed. 



1. D. marit'ima (Cass.). — E. B. 141. — Densely cottony and 

 white. St. about a foot long, decumbent below, densely leafy, 

 corymbose above. L. sessile, oblong, blunt, flat, crenate, per- 

 sistent. Heads in terminal corymbose tufts. Inv. cottony. El. 

 yellow. — Sandy sea-shores, rare. P. VHI. IX. E. I. 



19. (18.) Aetemis'ia Linn. 'Wormwood. 

 * Meceptacle pilose. 



1. A. Absin'thium (L.) ; heads drooping hemispherical, fl. 

 not all perfect, 1. silky in many deep lanceolate blunt segments, 

 outer phyU. linear siUfy, inner roundish scarious. — E. B. 1230. 

 —St. bushy, 1 — 2 feet high. Heads in erect leafy panicles. 

 Floral 1. simple. Fl. duU yellow, the outer row female. — Waste 

 ground. P. VII. VIII. Wormwood. E. S. I. 



** Receptacle naked. 



2. A. campes'tris (L.) ; heads drooping ovate glabrous, fl. not 



