VJIl 



MOSSES AND FERNS 



CHAPTER VIII 



The Pteridophyta — Ophioglossace^ . 



PAGE ^ 



2l8 



CHAPTER IX 



MARATTIACEiE ISOETACE^ 



254 



CHAPTER X 



FlLICINE^ LEPTOSPORANGIAT^ . 



302 



CHAPTER XI 



Classification of the Homosporous Leptosporangiat^ 



338 



U 



CHAPTER XII 



LEPTOSPORANGIAT^ HETEROSPOREiE (HYDROPTERIDES) 



378 



CHAPTER XIII 



Equisetine^ 



422 



CHAPTER XIV 



Lycopodine^ 



461 



CHAPTER XV 

 Summary and Conclusions 



5ot 



BIBLIOGRAPHY 

 INDEX  



521 



535 



