48 ALIEN FLORA OF BRITAIN 



LINAGES. 



Linum g^andiflorum, Desf. An Algerian annual, 

 much cultivated in English gardens, and once found 

 on the Thames bank near Kew Gardens by Mr. J. G. 

 Baker. 



Linum usitatissimum, L. A plant of very ancient 

 cultivation, which is constantly to be seen as a casual 

 in Britain, owing to the wide use of its seeds 

 for various purposes. It is probably a native of 

 North-East Africa. 



ZYGOPHYLLACE^. 



Tribulus terrestris, L. A native of the sandy shores 

 of the Mediterranean Sea, and a common weed in many 

 parts of Southern Europe. It is occasionally introduced 

 into Britain with ballast. 



GERANIACE^. 



Erodium ciconium, Willd. A native of the dry downs 

 of Spain and from there to Persia. It is a weed of 

 cultivated ground and waste places in many parts of 

 Europe. It has been recorded from Yorkshire as a 

 probable garden escape, and from one or two other 

 localities. 



