35. SAXIFRAGACEiE. 407 



There are only two houses in three miles, and those not 

 neai" the place. Actoea spicata and Ribes petrseum grow 

 along with it. The valley nms from west to east, and the 

 Saxifi-age is found only on the south side of it, which re- 

 ceives no sunshine, except in summer. Some of the plants 

 are inaccessible, the cliffs are so steep," (Phytologist i, 267). 

 And of the Perthshii'e locality, we are informed by Mr. 

 Brand, as follows : — " On Craig-y-barns, a hill to the north- 

 ward of the Park at Dunkeld, covering acres, and, in some 

 places, to the exclusion of every thing else, forming the en- 

 tire turf But for the occun-ence also of Hypericum caJy- 

 cinum, and other introduced plants, it would have been 

 considered native." (Trans. Bot. Soc. Edinb. i, 25). It 

 must be allowed that the Hypericum and its associates are 

 credible witnesses against the genuineness of the locality of 

 Craig-y-barns ; and that the abundance of the Saxifrage 

 there, is so far converted into argument against its nativity 

 elsewhere, howsoever it may have thriven and spread itself. 



/;////,<- 4'-7j7 422. SaXIFRAGA STELLARIS, it««. 



Area [1] ***** 7 * * 10 11 12 13 14 15 16 17 18. 



South limit in Merionethshire and Yorkshire. 



North limit in Sutherland and the Hebrides. 



Estimate of provinces 10. Estimate of counties 25. 



Latitude 52 — 59. Highland type of distribution. 



A. A. regions. Superagrarian — Superarctic zones. 



Descends to 200 yards, in North Wales. 



Ascends to 1400 or 1450 yards, in East Highlands. 



Range of mean annual temperature 45 — 32. 



Native. Uliginal and Rupestral. One of the most gene- 

 rally distributed of our arctic or alpine species ; and being 

 still exclusively limited to the mountainous provinces, it is 



