24. ROSACEiE. 357 



have willingly treated apart from one another. The Sweet- 

 briars do not seem to be so generally distributed as the 

 Dog-roses, either of the preceding or succeeding groups or 

 species. Mr. Anderson considered " Rosa rubiginosa " 

 undoubtedly wild on the banks of the Dee, in Aberdeen- 

 shire. By the Rev. G. Gordon it is held only dubiously 

 indigenous in Moray. 



351. Rosa canina, Linn. 



&c., &c., &c. 



Area, general. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, Sutherland. 



Estimate of provinces 18. Estimate of counties 81. 



Latitude 50 — 61. British type of distribution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 450 yards, in the East Highlands. 



Range of mean annual temperature 52 — 42. 



Native. Septal, &c. There appears less likelihood that 

 the various species which have been carved out of R. 

 canina are truly distinct, than in the two preceding in- 

 stances. But there is at least one form which I must con- 

 fess much difficulty in connecting with R. canina, though 

 the late Mr. David Don assured me confidently that it was 

 the R. duraetorum (Woods), and one of the varieties of R. 

 canina. The distribution, as above indicated, is indepen- 

 dent of that particular variety. I give 81 as the county 

 estimate, instead of 82, on account of Messrs. Balfour and 

 Babington not recording R. canina fiom the Hebrides. 



