84. JUNCACE^. 53 



1169. LuzuLA SYLVATicA, Bich. 



Area general. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Shetland, Orkney, Hebrides. 



Estimate of provinces 18. Estimate of counties 80. 



Latitude 50 — 61. British type of distribution. 



A. A. regions. Inferagrarian — Superarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 1000 yards, in the West Highlands. 



Range of mean annual temperature 51 — 37. 



Native. Sylvestral, Rupestral. I have only one note 

 of seeing this species above 900 yards of elevation, and 

 clearly within the superarctic zone ; namely, "above 3000 

 feet, on Ben Nevis," so long ago as 1832. Although I 

 was a very young botanist at that time, it is difficult to fix 

 upon any other plant, likely to occur so high, and likely 

 to be mistaken for L. sylvatica. I have since seen it at 

 800 and 900 yards, on several hills of the East Highlands; 

 but where species generally rise to a higher altitude than 

 they do in the West Highlands. The altitude on Ben 

 Nevis is not so unlikely as to demand its rejection, and 

 yet it would be desirable to have this verified afresh, or 

 confirmed by an equal altitude observed elsewhere. L. 

 sylvatica is probably scarce in the provinces of Thames 

 and Ouse, and may be quite absent from some of their 

 counties. 



