POL YGONA CEM 165 



POLYGONACE^. 



ragopyrmn esculentum, Moench. Apparently a 

 native of Manchuria. In Britain a frequent casual about 

 towns and villages, and even in woods where game is 

 preserved, in consequence of its use for bird-seed. 



Fagopyrum tataricmn, Gaertn. Native of Northern 

 Asia. Occasionally recorded as a weed in cultivated 

 ground in Britain. 



Polygonum arenarium, Waldst. and Kit. Native 

 of dry hills from Central Europe to Siberia, and a 

 common cornfield weed in some parts of that district. 

 Recorded in Britain as a grain introduction. 



Polygonum arifolium, L. Once recorded in Britain 

 on imported garden soil. A native of Asia. 



[Polygonum aviculare, L. Invariably recorded in 

 local British Floras as a weed of cultivated and waste 

 ground. Though more common in such situations, 

 it undoubtedly occurs as part of the native vegetation 

 of the seashore of Britain, as well as on sandy heaths, 

 and such-like natural habitats inland.] 



Polygonum Bellardi, All. Once recorded by Mr. 

 E. G. Baker as a casual near Limerick, in Ireland. A 

 native of the Mediterranean region, Siberia, and India. 



[Polygonum Convolvulus, L. It has been stated 

 that this is an Asiatic species occurring only as a weed 

 of cultivated and waste ground in Europe. As, however, 



