71. AMENTIFER^. 389 



north as above given, but it has become almost impossible 

 to distinguish between its natural and artificial area, &c. 

 I think to have seen S. Russelliana in Ross-shire ; and Bal- 

 four and Babington mention it among the trees of Roddal, 

 in Harris, where it may have been planted, as well as S. 

 pentandra, viminalis, and alba. The Rev. G. Gordon 

 deems S. Russelliana " certainly introduced," and S. fragi- 

 lis only " doubtfully native," in Moray. Dr. Dickie gives 

 only a single locality for the former, in the vicinity of 

 Aberdeen, and omits the latter from his list. In Gardi- 

 ner's Flora of Forfarshire, both names occur, but only 

 quoted from the unsafe authority of Don's list. Should, 

 perhaps, rather be referred to the English than to the 

 British type of distribution. 



1002. Salix alba, Linn. 

 1002* Salix vitellina, Linn. 



Area 1 2 -3 4 .5 6 7 8 9 10 11 12 13 14 15 16 * (18). 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Aberdeen, Argyle. (Moray, Hebrides.) 



Estimate of provinces 16. Estimate of counties 70. 



Latitude 50 — 58. English (.') type of distribution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 100 or 200 yards, in England. 



Range of mean annual temperature 52 — 47. 



Native. Septal, &c. Like the preceding, this also may 

 rather belong to the English than to the British type of 

 distribution. It is enumerated in Balfour and Babington's 

 list of Hebridean species, but with only the suspicious in- 

 dication of " Glen of Roddal," for habitat and evidence. 

 Frequent in Moray, but doubtfully native there, according 



