87. FILICES. 27 7 



1396. AsPLENiuM Tkichomanes, Linn. 



Ai'ea general. 



South limit in Cornwall, Isle of Wight, Kent. 



North limit in Orkney, Hebrides, Sutherland. 



Estimate of provinces 18. Estimate of counties 75. 



Latitude 50 — 60. British type of distribution. 



A. A. regions. Inferagrarian — Inferarctic zones. 



Descends to the coast level, in the Peninsula. 



Ascends to 650 or 700 yards, in North Wales. 



Range of mean annual temperature 53 — 42. 



Native. Eupestral. Perhaps seldom found above the 

 agTarian region ; gradually giving place to its very near 

 ally, the A. viiide, on the acclivities of the mountains. A 

 specimen is in my herbarium, from Fullerton, Forfarshire, 

 which approximates to the larger and more austral species, 

 A. anceps. Indeed, if A. viride and A. anceps had been 

 the commoner sjiecies, well-known and named before A. 

 Trichomanes was discovered, this last would have stood 

 good chance of being pronounced an intermediate and 

 perhaps uniting variety. 



1397. AsPLENiUM MAEixUM, Linu. 



Ai-ea 1 2 * * * 6 7 * 9 10 11 12 13 14 15 16 17 18. 

 South limit in Cornwall, Isle of Wight, Sussex. 

 North limit in Orkney, Hebrides. 

 Estimate of provinces 14. Estimate of counties 40. 

 Latitude 50 — 60. Atlantic type of distribution. 

 Agrarian region. Inferagrarian — Superagrarian zones. 

 Descends to the coast level, in the Peninsula. 



