380 
HISTORY OF BRITISH FERNS. 
Channel. —Hampshire. Dorsetshire. Wiltshire. Tilgate 
Forest, Sussex. 
Thames. —Tring, Hertfordshire. Hampstead, Middlesex. High- 
down Heath; Caesar’s Camp, Farnham ; Woking Common ; 
between Dorking and Leith Hill; Addington Hills, Croy¬ 
don; and other parts of Surrey. Oxfordshire. [High 
Beech, Essex.] 
Ouse. —Norfolk. G amlingay, Cambridgeshire. Bedfordshire 
Severn.— [Coleshill, Warwickshire!] Worcestershire. Staf¬ 
fordshire, Stiperstone, Shropshire. 
S. Wales.— -Glamorganshire. Plinlymmon, Cardiganshire. 
N. Wales. —Cader Idris, Merionethshire. Denbighshire. Snow¬ 
don, Carnarvonshire. 
Trent. —Charnwood Forest, Leicestershire. Nottinghamshire. 
Denbighshire. 
Mersey. — Todmorden; Simmons-wood Moss, Lancashire. 
Cheshire. 
Humber.— Frequent in the N. and W. Ridings of Yorkshire. 
Tyne. —Northumberland. Durham. 
Lakes. —Mountains of Cumberland. Langdale, Westmoreland. 
W. Lowlands. —Dumfries-shire. Kircudbrightshire. Renfrew¬ 
shire. Lanarkshire. 
E. Lowlands. —Peebleshire, Roxburghshire. Pentland Hills, 
Edinburghshire. Berwickshire. 
E. Highlands. —Clackmannanshire. Kinross-shire. Fifeshire. 
Clova Mountains, Forfarshire. Ben Lawers, Perthshire. 
