MOUNTAIN FERN. 



Lastr^a Oreopteris. — Presl. 



Aspidium Oreopteris. — Swartz, Smith, Hooker, Galpine, Mackay, 



Francis. 

 Aspidium odoriferum. — Gray. 

 Poly podium Oreopteris. — Withering. 

 Polypodium fragrans. — Hudson, Berkenhout. 

 Polypodium Thelypteris. — Bolton. 



LOCALITIES. 



England. . . In the northern counties very common ; Shropshire, on the Clee Hill ; Derbyshire 

 near Matlock ; Nottinghamshire, near Lin by ; Northamptonshire ; Hereford- 

 shire, at Amestrey quarry and Shobdon Park ; Oxfordshire ; Wiltshire, not 

 common; Somersetshire; Sussex; Kent, Tunbridge. Wells, Blackheath ; Essex, 

 Epping Forest ; Middlesex, Hampstead Heath ; Norfolk. 



Wales .... In North Wales abundant on all the mountains ; in Radnorshire, at Water-break-its- 

 neck, covering acres of the mountain; Brecknockshire; Merionethshire; Car- 

 diganshire ; Glamorganshire. 



Scotland . . On all the mountains. 



Ireland . . . County Londonderry, Muff Glen and Glen Roe; County Donegal, vicinity of 

 Milroy Bay ; County Kerry, near Muckruss sparingly, and very slender ; (is this 

 the Thelypteris of Mackay?) County Wicklow, at Glendalough, most abundant. 



This fern, as its name implies, is an inhabitant of mountains, 

 and is rarely found in low situations, or cultivated districts. It 

 is particularly abundant in the Highlands of Scotland, in many 

 districts completely taking the place of Pteris Aquilina. It also 

 abounds in the hilly parts of Northumberland, Durham, Cum- 

 berland, Westmoreland, Yorkshire, and Lancashire, and again in 



