^ ALIEN FLORA OF BRITAIN 



Medicago tenoreana, Ser. A native of grassy places 

 in the Mediterranean area which has been recorded 

 among grain introductions in England. 



Melilotus alba, Desv. Native in sandy meadows in 

 the north temperate regions of the Old World, but not 

 reaching England without the assistance of man. It 

 ceases to be recorded, as a native, further north-west 

 than Central France. In Normandy, as in Britain, 

 it is frequent by roadsides, in waste ground, and in fields 

 where it has once been cultivated. It shows a ten- 

 dency to spread along railway lines. It has appeared as 

 an introduction in nearly all temperate countries in 

 which it is not native. 



[Melilotus altissima, Thuill. Native in bushy places 

 in various parts of Southern England, always on dry 

 ground. Its native range extends as far as Central 

 Europe, but, outside England, its habitat seems to 

 be confined to river banks, wet meadows ; never in dry 

 places. This change of habitat at the limit of its range 

 is curious. The plant is mentioned here because it is 

 frequent also in artificial surroundings in Britain, and 

 because it is hardly ever recorded in local Floras under 

 natural conditions.] 



Melilotus indica, All. Very common as a cornfield 

 weed and waste ground plant in parts of the Mediter- 

 ranean area. It has appeared, often abundantly, and 

 most probably as a grain introduction, in various 

 parts of the world. In England it has become quite 

 common in waste ground in the neighbourhood of 

 some of our larger towns. 



