274 HISTORY OP BRITISH FERNS. 



THAMES. Hertfordshire. Kent. Isle of Sheppey. Surrey. 

 Buckinghamshire. Oxfordshire. Essex. 



OUSE. Suffolk. Norfolk. Cambridgeshire. Bedfordshire. 



SEVERN. Warwickshire. Gloucestershire. Herefordshire. Wor- 

 cestershire. Staffordshire. Shropshire. 



S. WALES. Glamorganshire. Carmarthenshire. Pembroke. 



N. WALES. Anglesea. Denbighshire. Montgomeryshire. Me- 

 rionethshire. Carnarvonshire. 



TRENT. Leicestershire. Nottinghamshire. Derbyshire. Eut- 

 land. 



MERSEY. Cheshire. Lancashire. The var. incisum is found at 

 Kant Clough near Burnley. 



HUMBER. -Yorkshire. 



TYNE . Durham . Northumberland. 



LAKES. Westmoreland. Cumberland. Isle of Man. 



W. LOWLANDS. Dumfriesshire, P. Gray. Kircudbrightshire, 

 P. Gray. Eenfrewshire. Lanarkshire. 



E. LOWLANDS. Eoxburghshire. Berwickshire. Edinburgh- 

 shire. Linlithgowshire. 



E. HIGHLANDS. Stirlingshire. Clackmannanshire. Pifeshire. 

 Perthshire. Eorfar shire. Kincardineshire. Aberdeenshire. 

 Morayshire. Nairnshire. 



W. HIGHLANDS. Argyleshire. Dumbartonshire. Isles of 

 Islay and Cantyre. 



N. HIGHLANDS. Eoss-shire. Cromarty. Sutheiiandshire. 



N. ISLES. Orkney, T. Anderson. 



