XIV 



Contents 



CHAP. 

 III. 



IV. 



V. 



VI. 



The Vegetation of the Coaesee Sands and Sandstones 

 The Plant-formation of Sandy Soil 

 Dry Oakwood association . 

 Scrub association 

 Grass heath association 

 East Anglian heaths 

 The Heath Fobjiation 



Oak-birch heath association . 

 Heath association .... 

 Eegions of English heathland . 

 Scottish Heaths, by W. G. Smith 

 Pinewood association 

 The Plant-fobhation of the Older Siliceous Soils 



A. The Pennine Eegion, by C. E. Moss . 

 Association of the Sessile Oak (Quercetum sessilifloroe^ 



Sub-associations of the ground vegetation . 

 Scrub associations . . . . 



Siliceous grassland associations 



Nardetum strictEe 



Molinietum cseruleee ... 



B. Other regions 

 Birchwood association (Betuletum tomentosse) 



The Vegetation of Calcareous Soils 

 The Plant-formation of Calcareous Soils 



A. The sub-formation of the Older Limestones, by 



C. E. Moss .... 

 Ashwood association .... 



Sub-associations of the ground vegetation 

 Limestone scrub association . 

 Limestone grassland association 



Limestone heath 

 Limestone pavement association 



B. The sub-formation of the Chalk, by A. G. Tansley 



and W. M. Eankm . 

 Beechwood association of the Chalk 

 Ashwood association 



Competition between beech and ash 



Yew-woods ..... 

 Chalk scrub association . 

 Chalk grassland association . 



Chalk heath .... 



Vegetation of Fleam Dyke . 



