THE LICHEN-FLOE A 



OP 



GREAT BRITAIN, IRELAND, AND THE 

 CHANNEL ISLANDS. 



BY THE 



REY. W. A LEIGHTON, B.A., 



OF ST. JOHN'S COLLEGE, CAMBRIDGE, FELLOW OF LINN/EAN SOCIETY OF LONDON, 



FELLOW OF THE BOTANICAL SOCIETY OF EDINBURGH, HONORARY MEMBER 



OF THE CRYPTOGAMIC SOCIETY OF SCOTLAND, HONORARY CORRESPONDING 



MEMBER OF NAT URAL HISTORY SOCIETY OF CHERBOURG, ETC., ETC. 



THIRD EDITION. 



SHREWSBUEY: 



PRINTED FOE THE AUTHOR. 



1879. 

 J 11 rights reserved. 



cr 



