LOCAL DISTRIBUTION OF FERNS. 
241 
Ouse. Suffolk, Norfolk, Cambridgeshire, Bedfordshire, 
Huntingdonshire, Northamptonshire. 
Severn. Warwickshire, Gloucestershire, Herefordshire, 
Worcestershire, Staffordshire, Shropshire. 
South Wales. Glamorganshire, Pembrokeshire, Car- 
marthenshire. 
North Wales. Anglesea, Denbighshire, Flintshire. 
Trent. Leicestershire, Rutland, Lincolnshire, Notting- 
hamshire, Derbyshire. 
Mersey. Lancashire, Cheshire. 
Humber. Yorkshire. 
Tyne. Northumberland, Durham. 
West Lowlands. Dumfriesshire, Kircudbrightshire, 
Lanarkshire. 
East Lowlands. Berwickshire, Haddingtonshire, Rox- 
burghshire, Edinburghshire, Linlithgowshire. 
West Highlands. Argyleshire, Dumbartonshire, Isles 
of Bute, Islay, and Cantire. 
East Highlands. Stirlingshire, Clackmannanshire, 
Kinross-shire, Fifeshire, Perthshire, Forfarshire, Kin- 
cardineshire, Aberdeenshire. 
North Highlands. Ross-shire, Sutherlandshire, Caith- 
ness. 
Northern Isles. Orkney, Shetland. 
Western Isles. Roddall, Harris. 
Channel Isles. Jersey. 
EQUISETUM HYEMALE. 
Thames. Wanborough, near Guildford, Surrey. 
Ouse. St. Faith's, Newton; Arming Hall Wood, Nor- 
wich, Norfolk. Stretham Ferry, Gamlingay, Cam- 
R 
