42 ALIEN FLORA OF BRITAIN 



TAMARIXACE^. 



Tamarix gallica, L. Native of the Atlantic coast of 

 Portugal and Southern France. It becomes rare further 

 north, and ceases, except as an introduced shrub, in 

 Normandy and Brittany. It seems to have been recog- 

 nised long ago as a shrub suitable for the coast of 

 South-West England, and its numerous wild-looking 

 stations there are in every case ascribed to cultivation. 



HYPERICACE^. 



Hypericum barbatum, J acq. Once recorded by 

 Don from a hedge in Perthshire. It is a native of 

 the mountains of South-East Europe, and was pre- 

 sumably not a native of Perthshire. 



Hypericum calycimim, L. A native of shady woods 

 in the Orient which has long been in cultivation all 

 over Britain, and has become plentifully established here 

 and there, in woods, hedges, and banks. 



Hypericum elatum, Dryand. A native of wood- 

 borders and bushy places in the Canary Islands which 

 was introduced into British gardens before Aiton's time, 

 and is now established, in a wild state, in many localities. 

 The identification of this garden plant with Choisy's 

 Hypericum grandifolium of the Canary Islands has 

 been retarded by Aiton's erroneous statement that its 

 origin was American. 



