71. AMENTIFER^. 403 



by Mr. Hamman, although the exact locality could not be 

 recollected. Rather frequent on the Grampians in the 

 East Highland province. 



1023. Salix myrsinites, Linn. 



Area ^^.^^^^^^^ [10] ^j. * * * 1.5 [16]. 



South limit in Perth, Forfar. 



North limit in Moray, Aberdeen. 



Estimate of provinces 1. Estimate of counties 4. 



Latitude 56 — 58. Highland type of distribution. 



Arctic region. Midarctic zone. 



Descends to 800 yards, less or more. 



Ascends to 900 yards, more or less. 



Range of mean annual temperature, say 39 — 38. 



Native. Rupestral. I am not acquainted with this 

 species, which has been recorded from York and Argyle, 

 in addition to the four counties mentioned above. As it is 

 stated to occur on the rocks of Clova and Canlochen, on 

 Craigalleach and in Glen Callater, I think the altitude 

 must run somewhere between 750 and 950 yards ; but in 

 this, as in other instances of plants which I have not col- 

 lected with my own hand, I am compelled to substitute a 

 rough guess, in place of proper calculations. 



1024. Salix procumbens, Forbes. 



Area *4(j*^**********15 16. 

 South limit in Perth, Forfar. 

 North limit in Moray, Argyle. 

 Estimate of provinces 2. Estimate of counties 4. 

 Latitude 56 — 58. Highland type of distribution. 



2 D 2 



