Book contents
- Frontmatter
- Contents
- INTRODUCTION
- CHAPTER I HETEROSTYLED DIMORPHIC PLANTS: PRIMTULACEÆ
- CHAPTER II HYBRID PRIMULAS
- CHAPTER III HETEROSTYLED DIMORPHIC PLANTS–continued.
- CHAPTER IV HETEROSTYLED TRIMORPHIC PLANTS
- CHAPTER V ILLEGITIMATE OFFSPRING OF HETEROSTYLED PLANTS
- CHAPTER VI CONCLUDING REMARKS ON HETEROSTYLED PLANTS
- CHAPTER VII POLYGAMOUS, DIŒCTOUS, AND GYNO-DIŒCIOUS PLANTS
- CHAPTER VIII CLEISTOGAMIO FLOWERS
- INDEX
- Frontmatter
- Contents
- INTRODUCTION
- CHAPTER I HETEROSTYLED DIMORPHIC PLANTS: PRIMTULACEÆ
- CHAPTER II HYBRID PRIMULAS
- CHAPTER III HETEROSTYLED DIMORPHIC PLANTS–continued.
- CHAPTER IV HETEROSTYLED TRIMORPHIC PLANTS
- CHAPTER V ILLEGITIMATE OFFSPRING OF HETEROSTYLED PLANTS
- CHAPTER VI CONCLUDING REMARKS ON HETEROSTYLED PLANTS
- CHAPTER VII POLYGAMOUS, DIŒCTOUS, AND GYNO-DIŒCIOUS PLANTS
- CHAPTER VIII CLEISTOGAMIO FLOWERS
- INDEX
Summary
The subject of the present volume, namely the differently formed flowers normally produced by certain kinds of plants, either on the same stock or on distinct stocks, ought to have been treated by a professed botanist, to which distinction I can lay no claim. As far as the sexual relations of flowers are concerned, Linnæus long ago divided them into hermaphrodite, monœcious, diœcious, and polygamous species. This fundamental distinction, with the aid of several subdivisions in each of the four classes, will serve my purpose; but the classification is artificial, and the groups often pass into one another.
The hermaphrodite class contains two interesting sub-groups, namely, heterostyled and cleistogamic plants; but there are several other less important subdivisions, presently to be given, in which flowers differing in various ways from one another are produced by the same species.
Some plants were described by me several years ago, in a series of papers read before the Linnean Society the individuals of which exist under two or three forms, differing in the length of their pistils and stamens and in other respects. They were called by me dimorphic and trimorphic, but have since been better named by Hildebrand, heterostyled. As I have many still unpublished observations with respect to these plants, it has seemed to me advisable to republish my former papers in a connected and corrected form, together with the new matter.
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- Publisher: Cambridge University PressPrint publication year: 2010First published in: 1877