TABLE OF CONTENTS. 



CHAPTER V. 



Eelationship amongst Plants. 



Characters of importance in proving relationahip. — Primary 

 Divisions of the Vegetable Kingdom. — Natural Orders of 

 Plants. — What is a Species ? . . . • PP- 158 — 185 



CHAPTER VI. 



Fossil Plants. 



Vegetation of early Geological Periods. — Disappearance of 

 groups of Plants. — The Evolution of Plants coi-roborated by 

 Geological evidence ..... pp. 186 — 192 



CHAPTER VII. 



Geogeaphical Distkibtjtion op Plants. 



Principal factors influencing the Distribution of Plants. — 

 British Flora, past and present. — Distribution of Cryptogams. 

 — Distribution of Phanerogams . . . . pp.193 — 206 



Index 



207 



