TABLE OF CONTENTS. 



PAGE 



INTRODUCTION, , . . ix 



ABBREVIATIONS, xii 



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, 48 



IX. Distribution in Time and Space, 62 



X. Methods of Study, 70 



OUR NATIVE PTERIDOPHYTA. 



ORDER I. FILICES: 75 



II. MARSILEACE/E, 125 



III. SALVINIACE/E 127 



IV. OPHIOGLOSSACE/E, 128 



V. EQUISETACE^: 132 



VI. LYCOPODIACE/E, '. . . 135 



VII. SELAGINELLACE^E 140 



VIII. ISOETACE^: 142 



INDEX AND GLOSSARY, 149 



