IV] 



GRASSLAND ASSOCIATIONS 



115 



study on account of its wide range of forms and the different 

 nature of its habitats. 



A list of the members of the Molinia grassland is appended, 

 and the number of associated species characteristic of the 

 moorland formation is obvious: 



RELATIONSHIPS OF THE PLANT ASSOCIATIONS 

 OF THE SILICEOUS SOILS 



The relationships of the plant associations of the sandstones 

 and shales of the southern Pennines are summarized in the 

 following table : 



Sandstone 



rocks 

 and screes 



'Woods of Betida pubescens 

 or of Quercus sessiliftora 



I 



Various stages of scrub 



Molinia pasture 



Nardus pasture 



I 



Swamps 



Nardus pasture with much Calluna 



I 

 [Moorland Formation] 



82 



