OECOLOGY OF PLANTS 



AN INTRODUCTION TO THE STUDY 

 OF PLANT-COMMUNITIES 



BY EUG. WARMING, PH.D. 



PROFESSOR OF BOTANY IN THE UNIVERSITY OF COPENHAGEN 

 ASSISTED BY 



MARTIN VAHL, PH.D. 



PR1VATDOCENT IN THE UNIVERSITY OF COPENHAGEN 

 PREPARED FOR PUBLICATION IN ENGLISH BY 



PERCY GROOM, M.A., D.Sc, F.L.S. 



ASSISTANT PROFESSOR OF BOTANY IN THE IMPERIAL COLLEGE OF SCIENCE AND 

 TECHNOLOGY, LONDON 



ISAAC BAYLEY BALFOUR, M.A, M.D., F.R.S. 



KING'S BOTANIST IN SCOTLAND, REGIUS KEEPER OF THE ROYAL BOTANIC GARDEN 

 AND PROFESSOR OF BOTANY IN THE UNIVERSITY, EDINBURGH 



OXFORD 



AT THE CLARENDON PRESS 

 1909 



