Structure, physiology, evolution, systematics, ecology.

Morphologie.

With improved microscope and preparation techniques, studies of histo logical structures of plant organisms experienced a revival of interest at the end of the 19th century. From that time, histological data have sub stantially studies of the pioneers in botanical science. From the beginning of the 20th century, the microscope allowed research in cell structure, the general functional unit of living beings. Advances in cytology gradually influenced histology, at first, however, rather timidly. Only the new and spectacular progress in ultrastructural cytology and cytochemistry led to a great increase in modern work on the structures of vascular plants and the related ontogenical and physiological data, thanks to the use of the electron microscope and the contribution of molecular biology. Not only did new techniques lead to new approaches, but achieve ments in general biology shifted the orientation of research, linking in vestigation to the physiological aspects of cell and tissue differentiation. Among these, the demonstration of the general principles of develop ment, and the characterization of molecules common to plants and animals, which control and govern the main basic functions of cells and tissues, have widened the scope of modern research on plant struc tures. Present trends in biological research show that it is necessary to know the structures thoroughly, from the ultrastructural cytological scale to the scale of tissue and organ arrangement, even for physiological research on either cells, tissues, or whole organs. The study of growth factors, differ entiation, or organogenesis can be mentioned as an example.

The product of twenty-five years of planning, research, and writing, Guide to the Vascular Plants of Tennessee is the most comprehensive, detailed, and up-to-date resource of its kind for the flora of the Volunteer State, home to nearly 2,900 documented taxa. Not since Augustin Gattinger’s 1901 Flora of Tennessee and a Philosophy of Botany has a work of this scope been attempted. The team of editors, authors, and contributors not only provide keys for identifying the major groups, families, genera, species, and lesser taxa known to be native or naturalized within the state—with supporting information about distribution, frequency of occurrence, conservation status, and more—but they also offer a plethora of descriptive information about the state’s physical environment and vegetation, along with a summary of its rich botanical history, dating back to the earliest Native American inhabitants. Other features of the book include a comprehensive glossary of botanical terms and an array of line drawings that illustrate the identifying characteristics of vascular plants, from leaf shape and surface features to floral morphology and fruit types. Finally, the book’s extensive keys are indexed by families, scientific names, and common names. The result is a user-friendly work that researchers, students, environmentalists, foresters, conservationists, and indeed anyone interested in Tennessee and its botanical legacy and resources will value for years to come.

A plant anatomy textbook unlike any other on the market today. Carol A. Peterson described the first edition as 'the best book on the subject of plant anatomy since the texts of Esau'. Traditional plant anatomy texts include primarily descriptive aspects of structure, this book not only provides a comprehensive coverage of plant structure, but also introduces aspects of the mechanisms of development, especially the genetic and hormonal controls, and the roles of plasmodesmata and the cytoskeleton. The evolution of plant structure and the relationship between structure and function are also discussed throughout. Includes extensive bibliographies at the end of each chapter. It provides students with an introduction to many of the exciting, contemporary areas at the forefront of research in the development of plant structure and prepares them for future roles in teaching and research in plant anatomy.