CONTENTS:-
1. INTRODUCTION : PTERIDOPHYTES, 2. CLASSIFICATION : PTERIDOPHYTES, 3. ALTERNATION OF GENERATIONS IN PTERIDOPHYTES, 4. RHYNIA, 5. LYCOPODIUM 6. SELAGINELLA, 7. EQUISETUM, 8. PTERIS, 9. MARSILEA, 10. STELAR SYSTEM IN PTERIDOPHYTES, 11. HETEROSPORY AND SEED HABIT, 12. ECONOMIC IMPORTANCE OF PTERIDOPHYTES