CONTENTS. 



Page 



INTRODUCTION 



I. HISTORICAL REVIEW OF LITERATURE RELATING TO THE VEGE- 

 TATION OF THE FÆROES 8G9 



II. THE INFLUENCE OF EXTERNAL FACTORS ON THE VEGETATION. 



1. Climatic factors. 



a. Temperature 876 



b. Rainfall and atmospheric moisture 878 



c. Snow-covering 880 



d. Movements of the air (wind) 885 



e. Light 886 



2. Edaphic factors. 



a. Nature of the soil 888 



b. Moistness of the soil 891 



3. The influence of man and animals on the vegetation. 



a. Man 892 



b. Domestic animals 893 



c. Rirds , 894 



III. SOME RIOLOGICAL FEATURES. 



Alphabetical list of the vascular piants 896 



1. Duration of life 902 



2. Riological types in Raunkiær's acceptation 906 



3. Vegetative propagation and structure of the shoots 909 



4. Time of flowering (Phenology) 910 



5. Maturation of fruit .... 914 



6. Distribution in altitude 917 



IV. THE PLANT-FORMATIONS. 



A. NATURAL FORMATIONS ^21 



1. Halop hi le formations 922 



a. The sand-strand formation 922 



Honckenya association, Elymus association. 



