Variation and Evolution in Plants

Preface Contents Chapter I. Description and Analysis of Variation Patterns Chapter II. Examples of Variation Patterns Within Species and Genera Chapter III. The Basis of Individual Variation Chapter IV. Natural Selection and Variation in Populations Chapter V. Genetic Systems as Factors in Evolution Chapter VI. Isolation and the Origin of Species Chapter VII. Hybridization and its Effects Chapter VIII. Polyploidy I: Occurrence and Nature of Polyploid Types Chapter IX.. Polyploidy II: Geographic Distribution and Significance of Polyploidy Chapter X. Apomixis in Relation to Variation and Evolution Chapter XI. Structural Hybridity and the Genetic System Chapter XII. Evolutionary Trends I: The Karyotype Chapter XIII. Evolutionary Trends II: External Morphology Chapter XIV. Fossils, Modern Distribution Patterns and Rates of Evolution Works Cited Index Variation and Evolution in Plants is a book written by G. Ledyard Stebbins, published in 1950. It is one of the key publications embodying the modern evolutionary synthesis, as the first comprehensive publication to discuss the relationship between genetics and natural selection in plants. The book has been described by plant systematist Peter H. Raven as "the most important book on plant evolution of the 20th century" and it remains one of the most cited texts on plant evolution