104 ALIEN FLORA OF BRITAIN 



Artemisia Toumefortiana, Reichb. Native on sandy 

 shores and salt marshes from Asia Minor to Afghanistan. 

 Recorded by|Mr. Druce in the Flora of Berkshire as an 

 introduction at Didcot. 



[Artemisia vulgaris, L. Native in rough stony and 

 sandy ground from Scotland to Siberia. Formerly 

 cultivated in Europe. In England it is recorded only 

 from hedges and the neighbourhood of houses, never 

 from natural situations. The same habitats hold over 

 the whole .of its range in Europe and Asia, with the 

 exception of the extreme north. There it occurs in 

 various reduced forms, in localities where it may be 

 considered indigenous. Mr. Marshall's accurate re- 

 searches in West Sutherland enable British botanists 

 to add this species to their native list.] 



Aster lllsevis, L. A native of North America. One 

 of the commonest of our garden Asters, and occasionally 

 found in a naturalised state in the neighbourhood of 

 gardens. 



[Aster Linosyris, Bernh. In consequence of its 

 scattered stations in Britain, and its cultivation in 

 gardens, many botanists have regarded the species as 

 an introduction. As, however, its Continental native 

 range reaches Normandy, and as some of its stations 

 in Britain are perfectly natural, it seems more in 

 accordance with our knowledge to admit it as an 

 indigenous plant.] 



Aster longifolius, Lam. A native of North Ame ica 

 much cultivated in England. It has occasionally 1: ^en 

 noticed in a semi-wild state, and seems to lave 



