TABLE OF CONTENTS. 



INTRODUCTION ix 



CHAPTER I. HAUNTS AND HABITS OF FERNS i 



II. THE ORGANS OF THE GROWING FERN 8 



III. FRUCTIFICATION IN FERNS 10 



IV. GERMINATION OF FERN SPORES 19 



V. FERN STRUCTURE 24 



VI. THE FERN ALLIES 28 



VII. CLASSIFICATION AND NOMENCLATURE 41 



VIII. THE FERN'S PLACE IN NATURE 54 



IX. DISTRIBUTION IN TIME AND SPACE 60 



OUR NATIVE PTERIDOPHYTA. 

 ORDER FILICALES. 



FAMILY i. OPHIOGLOSSACE^E 66 



2. HYMENOPHYLLACE^E 74 



3. SCHIZ/EACE;E 75 



4. OSMUNDACE/E 77 



5. CERATQPTERIDACE,*: 78 



6. POLYPOUIACE^: 78 



7. MARSILIACE^E 123 



8. SALVINIACE^E 125 



ORDER EQUISETALES. 



FAMILY i. EQUISETACE.E 126 



ORDER LYCOPODIALES. 



FAMILY i. LYCOPODIACE^E 130 



2. SELAGINELLACE^E 137 



3. ISCETACE^; 142 



ABBREVIATIONS 150 



GLOSSARY AND INDEX 151 



vii 



