44. COMPOSIT.E. 53 



570. HlERACIUM ALPINUM, Linn. 



570, b. HiERACiDM Halleri, ^^Vill." 



Area j^*j(f*j|f*7****12**15 16 17. 



South limit in Caernarvon, Westmoreland, Perth. 



North limit in Sutherland, Isle of Skye. 



Estimate of provinces 5. Estimate of counties 15. 



Latitude 53 — 59. Highland type of distribution. 



Arctic region. Midarctic zone. 



Descends to 550 yards, in North Highlands. 



Ascends to 1000 or 1050 yards, in East Highlands. 



Range of mean annual temperature 40 — 36. 



Native. Rupestral. Ascertained to occur in 12 coun- 

 ties, exclusive of Stirling, Kincardine, Banff, Caithness, 

 and the three groups constituting the province of the 

 North Isles ; and as none of these counties or isles appear 

 unlikely habitats, except on the ground of having been al- 

 ready partially examined, the comital estimate has been 

 assumed at the first step in the series above 12. The spe- 

 cies ranges to the extreme limits of the midarctic zone, 

 both ascending and descending, and may perhaps be an 

 inhabitant of all the three arctic zones. 



» ^^, ^^^ .A.4-<-^ ^^^- HlERACIUM NIGRESCENS, Willd. 



Area ^^ju******^).^^ [12] * * 15 16. 

 South limit in Perth, Forfar. [Westmoreland .?] 

 North limit in Aberdeen, West-Inverness. 

 Estimate of provinces 3. Estimate of counties 8. 

 Latitude 56 — 58. Highland type of distribution. 

 Arctic region. Midarctic zone. 



