[ 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. ]