CO NTENTS 



CHAPTER I 

 Introduction = i 



CHAPTER H 

 MusciNE^ (Bryophyta) — Hepatic^ — Marchantiales 8 



CHAPTER HI 

 The Jungermanniales 72 



CHAPTER IV 

 The Anthocerotes » « o . . . 120 



CHAPTER V 

 The Mosses (Musci) : Sphagnales — Andre^eales 160 



CHAPTER VI 

 The Bryales • , 188 



CHAPTER VII 

 The Pteridophyta — Filicine^ — Ophioglossace^ 229 



CHAPTER VIII 



Marattiales ^JZ 



CHAPTER IX 

 FiLiciNE^ Leptosporangiat^ 305 



CHAPTER X 

 The Homosporous Leptosporangiat^ (Filices) 346 



CHAPTER XI 

 Leptosporangiat^ Heterospore^ ( Hydro pterides) 396 



CHAPTER XII 

 Equisetine^ 443 



CHAPTER XIII 

 Lycopodine^ 483 



CHAPTER XIV 

 Isoetace^ 536 



CHAPTER XV 

 The Nature of the Alternation of Generations 562 



CHAPTER XVI 

 Fossil Archegoniates 576 



CHAPTER XVII 

 Summary and Conclusions 592 



ix 



