1 RANUNCULACE^. 71 



2. Thalictrum alpinum, Linn. 



Area * * * * ^ ^ 7 [8] * 10 11 12 13 ^, 15 16 17 18. 



South limit in Caemarvonshii-e and Yorksliii-e. 



North hmit in Shetland, Orkney, Hebrides. 



Estimate of pro^dnces 9. Estimate of counties 20. 



Latitude 53 — 61. Highland tj^je of distribution. 



A. A. regions. Superagraiian — Superactic zones. t[ 



Descends to the coast level, in the North Higlilands. 



Ascends to 1300 yards, in the East Highlands. 



Range of mean annual temperatm-e 46 — 34. 



Native. Uliginal. In the provinces southward from the 

 Higlilands, it is very local on some of the moimtains, at ele- 

 vations of 400 to 800 yards, more or less. In the Highlands, 

 becomes much more plentiful on wet rocks and in swampy 

 spots on the moors ; descending to 350 yai-ds, at Dalnacar- 

 doch, in Perthshire ; lower, near the east coast of Ross- 

 shire ; to the sea-shore, on the north coast of Sutherland. 

 Said to be abundant on heaths in Shetland. The locahty of 

 Castleton, Derbyshne, reported by Mr. Ii-vine, cannot be 

 tmsted. This is tnily an arctic species, and the specific 

 name should be construed with reference to climate, and 

 not as indicating any predilection for the Alps, as seems to 

 be imphed by those botanists who write the name with an 

 initial capital, — " Alpinmn." 



3. Thalictrum minus, Linn. 



Area 1 * 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18. ^ ^/^/.J 

 South limit in Devon, Somerset, N. Hertfordshii-e. 

 North limit in Orkney, Sutherland, Lewis. 



