xviii CONTENTS 



CHAPTER III 



THE LESSON OF THE BRITISH FLORA 



Results of observations on the buoyancy of over 300 British plants. — The small 

 proportion of plants with buoyant seeds or seedvessels. — Their station by 

 the water-side. — The great sifting experiment of the ages. — Summary. 



Pages 23 -30 



CHAPTER IV 



THE LESSON OF THE BRITISH FLORA {coniinued) 



The choice of station of the water-side plant possessing buoyant seeds or seed- 

 vessels. — Determined by its fitness or unfitness for living in physiologically 

 dry stations. — In the internal organisation of a plant lies the first de- 

 termining influence of station. — The grouping of the British strand-plants. — 

 Whilst the Xerophyte with buoyant seed or fruit finds its station at the 

 coast, the Hygrophyte similarly endowed makes its home at the river or 

 pond side. — The grouping of the plants of the river and the pond. — 

 Summary . ... Pages 31—39 



CHAPTER V 



THE FIJIAN STRAND-FLORA 



The inland extension of the beach-plants.— The grouping of the coast-plants. — 

 Their modes of dispersal. — The zone of change. — Summary. Pages 40 — 46 



CHAPTER VI 



THE TAHITIAN STRAND-FLORA 



{From materials supplied mainly by the work of Drake del Castillo) 



Lacks the mangroves and their associated plants.— Possesses mainly the 

 plants of the coral beach. — Predominant agency of the currents. — Inland 

 extension of shore-plants. — Summary ... . Pages 47 50 



CHAPTER VII 



THE HAWAIIAN STRAND-FLORA 



Its poverty.— Its negative features.— Their explanation.— The subordinate part 

 taken by the currents.— The Oregon drift.— The inland extension of the 

 beach-plants.— Summary . , . p^^^^ 51—60 



