28S 87. FILICES. 



peratiu'e. Between Llanroost and Capel Curig, Caernar- 

 vonshire (or, possibly Denbiglisliii'e), according to Mr. 

 Newman, and Mr. G. H. Smyttan. Rocks about two 

 miles from Kelso, Eoxbui'gbshire, according to Dickson, 

 in Hook. Scot. Three miles from Dunfermline, Fife, ac- 

 cording to Dr. Dewar, in Brit. Flora. Near Perth, on 

 the authority of Mr. Bishop, in Eng. Flora. And on 

 Stenton Eocks, near Dunkeld, in the same county of 

 Perth, according to Mr. Williamson, in Newman's His- 

 tory, and Dr. Macnab, in Proceed. Bot. Soc. Edinb. 



1401. ASPLENIUM SEPTENTRIOXALE, Hull. 



Area 1 * [3] * * * 7 * * 10 11 12 * 14 15 * * [18]. 



South limit in Devon or Somerset. 



North limit in Perth. [Forfar? Orkney?] 



Estimate of provinces 7. Estimate of counties 13. 



Latitude 51 — 57. Highland type of distribution. 



A. A. regions. MidagTarian — Midarctic zones. 



Descends to 150 yards, or lower, in East Lowlands. 



Ascends to 1000 yards, less or more, in N. Wales. 



Range of mean annual temperature 47 — 37. 



Native. Rupestral. Uncertainties attend the limits of 

 this fern both vei-tically and horizontally. First, does it 

 occur in Devon or in Somerset, or in both ? ]Mr. N. 

 Ward says " within six mUes of Lynton, North Devon " 

 (Phytol. i. 21), but Mr. Newman places Mr. Ward's locality 

 under the county of Somerset, " near Glenthorne, about 

 six miles from the boundary of Devon ". If in Somerset, 

 the locality woidd thus be far more than six miles from 

 Lynton; the latter being some miles within the Devon 

 side of the boundary. A second locality is referred to 

 Somerset, in Tmiier and DillwjTi's Guide ; namely, 



