t 



70. URTICACE.E. 373 



stand an unquestioned native ; while HooKer marks it as 

 an introduced plant. The localities in the southern pro- 

 vinces of England appear to countenance the views of the 

 two former botanists ; those in Scotland and the northern 

 provinces of England better supporting the opinion of Sir 

 William Hooker. I saw the hop in 1832, by the bridge at 

 Castletown, in Braemar, near 1100 feet above the sea, and 

 it was still there in 1844 ; but I presume this not to be an 

 indigenous habitat. Omitted from the Floras of Moray, 

 Aberdeen, Forfar, and the more northerly catalogues. Mr. 

 Lawson mentions its occurrence in Fife, but only as an in- 

 troduced plant. In the Edinburgh Society's Catalogue, 

 and in the Flora of Berwick-on-Tweed, its true nativity is 

 also questioned. It is enumerated in the Glasgow Flora, 

 without the expression of distrust. Winch speaks of it as 

 naturalized in hedges in Northumberland, and quotes two 

 localities in the county of Durham, without repeating his 

 doubt of its nativity in that county likewise. 



^ ^^- /^X' ^^^ 984. Ulmus MONTANA, Linn. 



Area general. 



South limit in Devon, Isle of Wight, Sussex, ^^^-^^y***/— -^ 



North limit in Hebrides, Sutherland. 



Estimate of provinces 18. Estimate of counties 60. 



Latitude 50 — 59. British type of distribution. 



Agrarian region. Inferagrarian — Superagrarian zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 350 yards, in East Highlands. (Planted ?) 



Range of mean annual temperatui'e 51 — 44. 



Native. Sylvestral, &c. Rather thinly scattered through 

 Britain, in the present time, if we reject the localities in 

 which it appears to have been planted. There is much 



