TABLE OF CONTENTS. 



PAGE 



Introduction, ix 



Abbreviations, xii 



Chapter I. Haunts and Habits of Ferns, i 



n. The Organs of the Growing Fern, 8 



HI. Fructification in Ferns, lo 



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, 7? 



II, Marsileace^, 125 



III. Salviniace.^ 127 



IV. Ophioglossace^ 128 



V. Equisetace^ 132 



VI. Lycopodiace^, 135 



Vn. Selaginellace^ 140 



VIII. Isoetace.^ 142 



Index and Glossary 149 



