18 PLANT SOCIOLOGY 



Table 1. — Soil Acidity and the Succession of Plant Communities 



1 Words such as acidophilous, xerophilous, etc., are used throughout this book without any sug- 

 gestion of emotion on the part of the plants, and should be understood as having no teleological 

 implications. 



while poisoning it for themselves. Within the individual stands of the 

 Seslerieto-Semperviretum and the Festuca violacea-Trifolium ihalii 

 association the number of acidophilous species and the number of 

 individuals vary with the pH of the soil and increase with the rising soil 

 acidity. 



