THE DIFFERENT FORMS OF FLOWERS ON PLANTS OF THE SAME SPECIES

By Charles Darwin

TO

PROFESSOR ASA GRAY

THIS VOLUME IS DEDICATED BY THE AUTHOR

AS A SMALL TRIBUTE OF RESPECT AND AFFECTION.


CONTENTS

[ DETAILED TABLE OF CONTENTS ]

[ THE DIFFERENT FORMS OF FLOWERS ON PLANTS OF THE SAME SPECIES. ]

[ INTRODUCTION. ]

[ CHAPTER I. HETEROSTYLED DIMORPHIC PLANTS: PRIMULACEÆ. ]

[ CHAPTER II. HYBRID PRIMULAS. ]

[ CHAPTER III. HETEROSTYLED DIMORPHIC PLANTS—continued. ]

[ CHAPTER IV. HETEROSTYLED TRIMORPHIC PLANTS. ]

[ CHAPTER V. ILLEGITIMATE OFFSPRING OF HETEROSTYLED PLANTS. ]

[ CONCLUSIONS WITH RESPECT TO THE EQUAL-STYLED VARIETY OF P. Sinensis. ]

[ CHAPTER VI. CONCLUDING REMARKS ON HETEROSTYLED PLANTS. ]

[ CHAPTER VII. POLYGAMOUS, DIOECIOUS, AND GYNO-DIOECIOUS PLANTS. ]

[ CHAPTER VIII. CLEISTOGAMIC FLOWERS. ]