Plate XVI 



£ 



/'/mi;. ,S'. Mn'iii]h 



a. Beechwood and chalk pasture on sides of dry valley in chalk escarp- 

 ment. Chevening Park, Kent. 



Phot. S. MimijJiam 



b. Interior of same beechwood. Coinnuinities of ilercurinUs piTcnnis 

 in lighter spaces. [CejiliitiantluTti ijrtmdifloru and Keoltia Nidus- 

 Avin occur in the darker shade.] 



Ik'ccliwdod assoriatiuii on Chalk. 



