Reproductive Biology and Taxonomy of Vascular Plants is a collection of papers presented at the Conference on Reproductive Biology and Taxonomy of Vascular Plants, held at the Department of Botany, University of Birmingham on April 23-25, 1965. The conference primarily explores the reproductive biology of flowering plants and ferns to arrive at a better understanding of variation patterns and modes of evolution. This book is divided into six chapters and begins with a discussion on the breeding systems, variation and adaptation. The next chapters survey the practical implications of knowledge of breeding systems and other aspects of the reproductive biology of flowering plants, as well as the pollination mechanisms in orchids and the evolution of this family in relation to insect evolution. These chapters include an account of the foraging behavior of honey bees and its importance to the botanist in delineating the behavior of the insects that pollinate the plants. Other chapters deal with the mechanisms of plant dispersal and establishment, the aspects of seed dormancy, and germination and reproductive capacity related to evolutionary processes. The concluding chapters explore the many aspects of apomixis in its wider sense and survey how the variation patterns of apomicts were due to this special mode of reproduction. This book is directed primarily to botanists.

Plant taxonomy is an ancient discipline facing new challenges with the current availability of a vast array of molecular approaches which allow reliable genealogy-based classifications. Although the primary focus of plant taxonomy is on the delimitation of species, molecular approaches also provide a better understanding of evolutionary processes, a particularly important issue for some taxonomic complex groups. Molecular Plant Taxonomy: Methods and Protocols describes laboratory protocols based on the use of nucleic acids and chromosomes for plant taxonomy, as well as guidelines for phylogenetic analysis of molecular data. Experts in the field also contribute review and application chapters that will encourage the reader to develop an integrative taxonomy approach, combining nucleic acid and cytogenetic data together with other crucial information (taxonomy, morphology, anatomy, ecology, reproductive biology, biogeography, paleobotany), which will help not only to best circumvent species delimitation but also to resolve the evolutionary processes in play. Written in the successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible protocols, and notes on troubleshooting and avoiding known pitfalls. Authoritative and easily accessible, Molecular Plant Taxonomy: Methods and Protocols seeks to provide conceptual as well as technical guidelines to plant taxonomists and geneticists.

This collection of specially commissioned essays puts top scholarshead to head to debate the central issues in the lively and fastgrowing field of philosophy of biology Brings together original essays on ten of the most hotlydebated questions in philosophy of biology Lively head-to-head debate format sharply defines the issuesand paves the way for further discussion Includes coverage of the new and vital area of evolutionarydevelopmental biology, as well as the concept of a unified species,the role of genes in selection, the differences between micro- andmacro-evolution, and much more Each section features an introduction to the topic as well assuggestions for further reading Offers an accessible overview of this fast-growing and dynamicfield, whilst also capturing the imagination of professionalphilosophers and biologists

This volume is the outcome of a modern phylogenetic analysis of the grass family based on multiple sources of data, in particular molecular systematic studies resulting from a concerted effort by researchers worldwide, including the author. In the classification given here grasses are subdivided into 12 subfamilies with 29 tribes and over 700 genera. The keys and descriptions for the taxa above the rank of genus are hierarchical, i.e. they concentrate upon characters which are deemed to be synapomorphic for the lineages and may be applicable only to their early-diverging taxa. Beyond the treatment of phylogeny and formal taxonomy, the author presents a wide range of information on topics such as the structural characters of grasses, their related functional aspects and particularly corresponding findings from the field of developmental genetics with inclusion of genes and gene products instrumental in the shaping of morphological traits (in which this volume appears unique within this book series); further topics addressed include the contentious time of origin of the family, the emigration of the originally shade-loving grasses out of the forest to form vast grasslands accompanied by the switch of many members to C4 photosynthesis, the impact of herbivores on the silica cycle housed in the grass phytoliths, the reproductive biology of grasses, the domestication of major cereal crops and the affinities of grasses within the newly circumscribed order Poales. This volume provides a comprehensive overview of existing knowledge on the Poaceae (Gramineae), with major implications in terms of key scientific challenges awaiting future research. It certainly will be of interest both for the grass specialist and also the generalist seeking state-of-the-art information on the diversity of grasses, the most ecologically and economically important of the families of flowering plants.