CONTENTS IX 



APPENDIX I 



SUMMARY AND RELATIONS OP THE PLANT COMMUNITIES 

 OF THE PEAK DISTRICT 



1. The Plant Formation of Calcareous soils (Calcarion). 



2. The Plant Formation of Siliceous soils (Silicion). 



3. The Plant Formation of the Acidic Peaty soils (Oxodion). 



4. The Relationships of the Oxodion and the Silicion. 



5. The Plant Formation of Fresh Waters. 



pp. 214-217 



APPENDIX II 



SUMMARY OP BRITISH PLANT FORMATIONS AND ASSOCIATIONS 



pp. 218-221 



APPENDIX III 



List of References . ' s , - * . . . pp. 222-228 



INDEX pp. 229-235 



LIST OF ILLUSTRATIONS 



FIGURE PAGE 



1. Subsoil map of the Peak District (northern area) ... 6 



2. Subsoil map of the Peak District (southern area) . . .11 



3. Oak Wood of Quercus sessHiflora near its upper altitudinal 



limit. Ground vegetation of Bilberry and silver Hair- 

 grass . . v . facing 38 



4. Oak Wood of Querciis sessiliflora. Shrubby undergrowth . 42 



5. Oak Wood of Quereus sessiliflora. Ground vegetation of 



Blue-bells 46 



6. Oak Wood of Quercu* sessiKflora. Ground vegetation of 



Bracken and wood Soft-grass 50 



7. Oak Wood of Qiiercus sessiliflora. Ground vegetation of 



Bilberry and silver Hair-grass 54 



8. Birch Wood of Betula pubescens. Ground vegetation of 



Rush and tufted Hair-grass ' 60 



