* CONTENTS 



DIVISION III 

 PTERIDOPHYTA 



CHAPTER PAGE 



XX. LYCOPODIALES. CLUB-MOSSES - 316 



XXI. FILICALES. FERNS 326 



DIVISION IV 

 BRYOPHYTA 

 XXII. Musci AND HEPATICAE : MOSSES AND LIVERWORTS - 353 



DIVISION V 

 THALLOPHYTA 



XXIII. THALLOPHYTA INTRODUCTORY - 371 



XXIV. BROWN ALGAE (PHAEOPHYCEAE). [RED ALGAE (RHODO- 



PHYCEAE)] - - 377 



XXV. GREEN ALGAE (CHLOROPHYCEAE) - 390 



XXVI. FUNGI INTRODUCTORY 402 



XXVII. PHYCOMYCETES - 413 



XXVIII. EU-MYCETES (a) ASCOMYCETES - 429 



XXIX. EU-MYCETES (&) BASIDIOMYCETES 441 



XXX. SCHIZOPHYTA 456 



GENERAL CONCLUSION 



XXXI. SEX AND HEREDITY - 461 



XXXII. ALTERNATION OF GENERATIONS, AND THE LAND-HABIT - 479 



APPENDIX A. TYPES OF FLORAL CONSTRUCTION IN ANGIO- 



SPERMS - 492 



APPENDIX B. VEGETABLE FOOD-STUFFS - - - 540 



INDEX AND GLOSSARY 549 



