Artemisia.2 XLYI. COMPOSITyli : COKYMBIFERiE. 



239 



27. Artemisia Linn. Wormwood, Southernwood, Muo"wort. 



Aclienes oLovate, with a minute eplgynous disk. Pappus 0. 

 Receptacle without scales, 

 cated. LiQ- 



latefli 



and awl-shaped. — (Heads homochrormnis.) 

 temis. the Diana of the Greeks. 



Involucre ovate or rounded, imbri- 



Xamed from Ar^ 



* All the florets except those of the margin sterile, Receptacle glabrous. 



Heads moncecious- Oligosporus. 



1. A. campestris L. {Field S.) ; leaves ghabrous above silky 

 beneath once or twice pinnate with linear segments, stems 

 twiggy procumbent before flowering, scales of "the involucre 

 glabrous with a scarious margin. E. B. t. 338. 



^ Dry sandy heaths, rare. Norfolk and Suffolk, principally in the 



vicinity of Thetford and Bury. Belfast. 1^. 8, 9. Florets yellow : 



those of the disk, although apparently perfect, have no ovule in the 

 germen, and therefore never produce seed, which is to be met with 

 only in the single row of marginal plstilhite filiform florets. 



** Heads heterogamous, florets not all perfect hiit all fertile. 



glabrous, Abrotanum. 



Receptacle 



2. A. imlgdris L. (common M,) ; leaves pinnatifid white and 

 woolly beneath, heads somewhat racemed ovate, scales of the 

 involucre woolly, E. B. t. 978. 



Stems 3 



4 ft. 



%. 



Stein 



'^ Hedges and waste places, common. 1/.. 7 — 9. 

 high, furrowed. Florets reddish or brownish vellow, 



V 



'^^^^ Heads heterogamous. Receptacle hairy. Absinthium. 



3. A. ^S^f/zif^nmL. (co???mo;z TF:); leaves bipinnatifid clothed 

 with short silky down, segments lanceolate, heads hemisphterical 

 drooping many-flowered, outer scales of the involucre linear 

 silky, mner ones roundish scarious. E. B. t. 1230. 



Waste places and about villages, in dry soils. 

 1—1^ ft. high, erect. Panicles of flowers erect, leafy, 

 undivided. Heads rather larire. 

 pistillate ones very short. 

 medicine. 



*^** Heads homogamous (all the florets perfect and fertile). Receptacle 



glabrous. Seriphida. 



4. A. maritima L. (Sea W.) ; leaves downy, radical and 

 lower cauline ones bipinnate, upper often pinnate or pinnatifid, 

 segments hnear, heads racemed obloncr 3— 5-flowered. 

 cemes drooping. E. B. t. 1706 

 t. 1001. A. Gallica Willd. 



Sea-shores and in salt marshes. 



8, 9. 



Floral leaves 



^^. Florets dingy yellow, the marginal 



Aromatic and bitter, much used in 



/3. racemes erect. 



-a. ra- 



E. B. 



What «.^ -J ", """■ ^^^^ ^" Scotland. 1^., 8, 9. — 



V^hat we consider the .two varieties may be seen growing together, 



