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For many years morphology was regarded as a basic discipline in the study of botany and, consequently, there have been many textbooks dealing with the subject. The pterido-phytes occupied varying proportions of these, and there were even some textbooks devoted to a single group, such as the ferns, within the pteridophytes. However, to the best of my knowledge, no book dealing solely with the pteridophytes has been pubHshed in the western hemisphere since 1936. Some of the old classics have recently been reprinted, but there is a need for a reappraisal of the old theories in the Ught of recent knowledge. Contrary to general behef, the study of morphology is a very live one, and many important advances have been made, on both sides of the Atlantic, in the last decade. Exciting new fossils have been discovered and new techniques have been developed for studying living organisms, to say nothing of the discovery of an entirely new genus of lycopods in the High Andes of Peru...
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This book constitutes a unique, encyclopedic reference work that systematizes and categorizes for the first time in such comprehensive fashion all known fern spores. The dominant feature of the work are the over 350 plates of electron micrographs showing the morphological characteristics of typical representatives of each spore type. The purpose of the book is to provide a complete survey of the available data on the fine structure and composition, development, and evolu- tionary significance of different types of spore walls, which have proven resistant to fossilization throughout geological ages. The classification system developed by the authors as the result of many years of research will be a point of reference, if not "the" systematic basis, for all future publication on the subject. The book will be of great interest to all botanists and evolutionary biologists working with spores and/or ferns, but it will also be of major importance to paleobotanists, palynologists, stratigraphers, and exploration geologists, since the focus of this treatise is on spores as highly adapted and longlived reproductive forms.