35. SAXIFRAGACE^. 417 



Estimate of provinces 2. Estimate of counties 2. 



Latitude* 56 — 58. Highland type of distribution. 



Arctic region. Superarctic zone. 



Descends ? • (Say, about 1100 yards). 



Ascends ? (Say, 1200 or 1300 yards). 



Range of mean annual temperature, say 34. 



Native. Rupestral. Concerning the distribution of this 

 plant, I find myself much at fault, for want of clear in- 

 formation and an accurate knowledge of the species. The 

 Welch and English plants, which pass under name of 

 csespitosa or decipiens, appear more akin to S. hypnoides^ 

 than to the specimens of S. caespitosa, from Ben Avon, 

 for which I was indebted to Mr. Stables and Dr. BaiTy, — 

 whether collected within the limits of Aberdeen or of Banff, 

 I am not able to say. There appears likelihood that the 

 " S. caespitosa," found by Mr. Woods, " among the rocks 

 near the summit of Ben Nevis," may also belong to the 

 same species as those from Ben Avon. 



J^(^.///'/ /- 433. Saxifraga pbdatifida, Ehrh. 



Area ************** 15. 



South and North limits in Forfarshire. 



Estimate of provinces 1. Estimate of counties 1. 



Latitude 56 — 57. Highland type of distribution. 



Ai'ctic region. Midarctic zone ? 



Descends .? (Say, at 800 or 900 yards ? ) 



Ascends r 



Range of mean annual temperature, say 39 — 38. 



Native ? Rupestral. Said to have been found by Mr. 

 Don, on rocks, near the head of Clova. In his account of 

 the botany of Forfarshire, Don says, in his usual vague or 

 careless language, " summits of the Clova Mountains " ; 



3 H 



