CONTENTS 



CHAPTER I 

 Introduction » » c i 



CHAPTER H 

 MusciNiLE (Bryophyta) — Hepatic^ — Marchantiales 8 



CHAPTER HI 

 The Jungermanniales c. .. 72 



CHAPTER IV 

 The Anthocerotes « c . . c . . . 120 



CHAPTER V 

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



CHAPTER VI 

 The Bryales « 18S 



CHAPTER VII 

 The Pteridophyta — Filicine^ — Ophioglossace^ 229 



CHAPTER VIII 

 Marattiales 27^ 



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.E 483 



CHAPTER XIV 



ISOETACE^ c 536 



CHAPTER XV 

 The Nature of the Alternation of Generations 562 



CHAPTER XVI 

 Fossil Archegoniates 576 



CHAPTER XVII 

 Summary and Conclusions 592 



ix 



r-k ^^ 



