RUBIACE^ 95 



ground, about rabbit-warrens, fox-earths, and such-like 

 perfectly natural situations. It should therefore be 

 classed as a native, much extended indirectly by 

 man.] 



Galium aristatum, L. Native of woods in the 

 Orient, and a weed of cultivated land in many parts 

 of Europe. Once recorded in England as a grain 

 introduction. 



Galium articulatum, Roem. and Schult. A remark- 

 able cornfield weed of Southern Europe. Once found 

 among grain-sifting aliens in Britain, 



Galimu tricorne, Stokes. A widely spread weed of 

 cultivated ground in Europe, being especially common 

 in the East, in which region it may possibly be native, as 

 it is recorded from the rocky hills of Palestine. In 

 England it is particularly frequent in chalky and lime- 

 stone cornfields. 



Sherardia arvensis, L. Recorded as a weed of 

 cultivated ground throughout the greater part of 

 Europe, including England. No clearly native locality 

 can be found in European Floras. The writer has, 

 however, noticed it growing in the grass of the chalk 

 downs of Surrey, but whether it was a relic of 

 cultivation or a stray from some arable land, or 

 whether it was an indication that the species is a 

 native of Europe, cannot be decided without further 

 investigation. For the present it is better to follow the 

 consensus of opinion and treat the species as a weed of 

 cultivation. 



