BEECH FERN. 



POLYPODIUM PHEGOPTERIS of Authors. 

 Polypodium Latebrosum, Gray. 



LOCALITIES. 



ENGLAND . . . The mountainous districts of Northumberland, Durham, Cumberland, Westmore- 

 land, Yorkshire, and Lancashire ; near the town of Ludlow, Shropshire ; on Shob- 

 don Wood Hill, Herefordshire ; and Dartmoor, Devonshire. 



WALES Rhaiadr, Hafod, Devil's Bridge, Ponterwyd, base of PKnlymmon ; between Ponter- 

 wyd and Aberystwith, Machynlleth, Dolgelly, Dolymelynllyn, Llaneltyd; between 

 Trawsvynydd and Maentwrog ; between Harlech and Tan-y-Bwlch, Aberglaslyn, 

 Beddgelert; between Beddgelert and Llyn Gwynnant; abundantly and almost con- 

 tinuously on the wall to the right between Llyn Gwynnant and the Pass of Llan- 

 berris; at Llanberris, Caernarvon, Cwm Idwel, Falls of Ogwen; Carnedd David; 

 near Bangor ; near Capel Carig ; near Cernioge. In South Wales, at the falls of the 

 Hepste, and several spots in the Vale of Neath. 



SCOTLAND. . . Luss, Tarbet, Arroquhar, Pass of Glencoe, Inverary, Oban, Isle of Mull, Ballahulish, 

 Pass of Glencroe ; near Tyndrum ; near Killin ; near Loch Katrine ; Jardine Hall, 

 Dumfrieshire ; Corra Llyn.and Stone Byers, Lanarkshire ; generally found in abun- 

 dance near all waterfalls in Scotland. 



IRELAND . . . Mountain rills and waterfalls in the county Antrim; and at Powerscourt Waterfall, 

 county Wicklow. 



THIS fern is peculiarly the fern of waterfalls ; its roots are 

 black and fibrous ; its rhizoma wiry, tough, and creeping, often 

 forms a complete network over the perpendicular face of rocks 

 within reach of the spray of waterfalls. In such situations this 

 fern appears to delight. It throws out its new fronds in May, 

 and they arrive at maturity in July, and disappear with the 



