Plate V 



Phot. S. Manghani 



a. Looking west from Press Eiilge Warren, Ashdowu Forest, Sussex, on 

 Ashdown sand. Betula tomentosa, B. alba, Pmus stjh'estris, Pteris 

 aquiUna. 



Phot. S. Jlaiiijham 



h. Birch wood, Press Bidge Warren. Betula tomentosa, B. alba, 

 Pteris nqtiilina. 



(Jak-bircli heath association. 



