394 71. AMENTIFER^. 



Salix holosericea, Willd. %->^ ^/. -^^ 



Area [2]. 



Tncognit ? " This is a plant which Mr. Borrer re- 

 ceived from Sir J. E. Smith, marked S. acuminata var. 

 rugosa ; but which he thinks probably allied to the S. ho- 

 losericea of Willd., and distinguishes it from the true acu- 

 minata by its sessile pale-coloured stigmas and leaves 

 greener and more rugose above, and more strongly veined 

 beneath. Mr. Forster says that Mr. Crowe regarded it as 

 a var. S. Smithiana, or as an undescribed species." 

 (Hooker's British Flora, edit. 5.) The name " holosericea" 

 occurs in lists of species and localities for other counties, 

 as Salop and Caermarthen, but appears to be a synonym 

 of S. acuminata in these instances. Without clearly un- 

 derstanding the matter, I suppose that Willdenow's S. ho- 

 losericea has not been found indigenous, if ever found at 

 all, in Britain. 



1009. Salix ACUMINATA, ^/«. ^>^^'^^.^^a 



Area 1 2 3 4 5 6 7 8 -* 10 11 12 13 14 * 16 * [18]. 

 South limit in Devon, Dorset, Hants, Sussex. 

 North limit in Argyle, Edinburgh. [Orkney ?] 

 Estimate of provinces 14. Estimate of counties 40. 

 Latitude 50 — 56 (60). English type of distribution. 

 Agrarian region. Inferagrarian — Midagrarian zones. 

 Descends to the coast level, in Peninsula or Channel. 

 Ascends to 100 or 200 yards, in England. 

 Range of mean annual temperature 51 — 47. 



