404 71. AMENTIFER.E. 



Arctic region. 



Descends to 800 yards, less or more. 



Ascends to 900 yards, more or less. 



Range of mean annual temperature, say 39 — 38. 



Native. Rupestral. With this also I still remain un- 

 acquainted, and mention above the only four counties in 

 which I find it recorded to occur ; one or two of which 

 can scarcely be relied upon until verified again. " This 

 seems to be the S. retusa, With. Bot. Arr. ed. 8, v. ii. p. 

 49, with a fig." (Hook. Br. Flo. ed. 5). 



Salix retusa, Linn. 

 Salix seepyllifolia. Scop. 



Area [15]. 



Incognit. "Fries (Mant. i. 76) states that 'beautiful 

 specimens of the variety serpyllifolia collected by Mr. 

 Winch in Breadalbane are in Hornemann's herbari- 

 um.' It is not to be found in Mr. Winch's herbarium." 

 (Bab. Man. edit. 2). See Hooker's note on S. retusa, un- 

 der S. procumbens above. S. retusa was recorded in the 

 Linnean Transactions, as found on Ben Lawers, on the 

 authority of Dickson. 



1025. Salix lanata, Linn. 



Area ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ \b. 



South limit in Forfar. 



North limit in Aberdeen. 



Estimate of provinces 1. Estimate of counties 2. 



Latitude 56 — 57. Highland type of distribution. 



Arctic region. Midarctic zone. 



