LOCAL DISTRIBUTION OF FERNS. 
2 77 
Thames. Hertfordshire, Middlesex, Kent, Surrey, Berk- 
shire, Buckinghamshire, Oxfordshire, Essex. 
Ouse. Suffolk, Norfolk, Cambridgeshire, Bedfordshire, 
Huntingdonshire, Northamptonshire. 
Severn. Warwickshire, Gloucestershire, Worcester- 
shire, Herefordshire, Staffordshire, Shropshire. 
South Wales. Brecknockshire, Pembrokeshire, Gla- 
morganshire, Carmarthenshire. 
North Wales. Anglesea, Denbighshire, Carnarvon- 
shire. 
Trent. Leicestershire, Nottinghamshire, Derbyshire. 
Mersey. Cheshire, Lancashire. 
Humber. Yorkshire. 
Tyne. Durham, Northumberland. 
Lakes. Cumberland, Westmoreland, Isle of Man. 
West Lowlands. Dumfriesshire, Kircudbrightshire,, 
Wigtonshire, Ayrshire, Renfrewshire, Lanarkshire. 
East Lowlands. Roxburghshire, Edinburghshire, Ber- 
wickshire. 
West Highlands. Argyleshire. Isles of Bute, Islay,, 
Cantire, and Skye. 
East Highlands. Fifeshire, Morayshire, Forfarshire^ 
Kincardineshire, Aberdeenshire, Nairnshire. 
North Highlands. Sutherlandsbire. 
Northern Isles. Isles of Rowsay, Orkney, Shetland. 
Connaught. Galway, Arran Isles, Sligo. 
Leinster. Dublin. 
Munster. Cork, Kerry. 
Channel Isles. Jersey. 
Yar. polyschides . Nettlecombe, Somersetshire^ 
Fareham, Hampshire. 
Yar. multifidum. Swaledale, Yorkshire. 
Yar. undulatum . Fareham, Hampshire. Yorkshire. 
