LOCAL DISTRIBUTION OF FERNS. 
271 
POLYPODIUM ALPESTBE. 
East Highlands. Mountains near Dalwhinnie, Inver- 
ness-shire. Caulochen Glen, Forfarshire. 
West Highlands. Great Corrie of Ben Aulder, Inver- 
ness-shire. 
POLYPODIUM DKYOPTEMS. 
Peninsula. Mendip Hills ; about Clevedon and Yattan; 
near Bristol ; near Bath, Somersetshire. 
Thames. Cornbury Quarry, Oxfordshire. 
Severn. Berkswell, Warwickshire. Forest of Dean, 
Gloucestershire. Tintern Abbey, Monmouthshire. 
Penyard Park, near Boss ; Downton Castle ; Aymes- 
try Quarry ; Sliobden Hills, Herefordshire. Shrawly 
Wood, Worcestershire. Trentham Part ; near Cotton 
Hall and Qakamoor ; Needwood, Staffordshire. Tit- 
terstone Clee Hills ; Whitecliffe, near Ludlow; Frod« 
desley Hill, Shropshire. 
South Wales. Craig-Pwll-du, Badnorshire. Brecon ; 
Trecastle; Pont FI enryd, near Capel Colboen; Ystred 
Felltree, Brecknockshire. Pont-nedd-Yechn ; Scwd- 
y-Gladis ; Merthyr Tydvil, Glamorganshire. Pont- 
erwyd ; Hafod, Cardiganshire. 
North Wales. Anglesa. Llangollen, Denbighshire. 
Craig-Breidden ; Plinlymmon, Montgomeryshire. 
Merionethshire. St. Asaph, Flintshire. Cwm Idwal ; 
Llanberis; Bangor; Bhaiadr-y-Wenol ; Twll-du, Car- 
narvonshire. 
Trent. Chinley Hill, near Chapel-le-Frith ; Pleasley 
Forges, Derbyshire. Lincolnshire. 
Mersey. Hill Cliff, Cheshire. Warrington; Broad- 
