Download or read book Excerpta botanica written by and published by . This book was released on 1985 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chinese Science Abstracts written by and published by . This book was released on 1984 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flowering Plants written by Armen Takhtajan and published by Springer Science & Business Media. This book was released on 2009-07-06 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: Armen Takhtajan is among the greatest authorities in the world on the evolution of plants. This book culminates almost sixty years of the scientist's research of the origin and classification of the flowering plants. It presents a continuation of Dr. Takhtajan’s earlier publications including “Systema Magnoliophytorum” (1987), (in Russian), and “Diversity and Classification of Flowering Plants” (1997), (in English). In his latest book, the author presents a concise and significantly revised system of plant classification (‘Takhtajan system’) based on the most recent studies in plant morphology, embryology, phytochemistry, cytology, molecular biology and palynology. Flowering plants are divided into two classes: class Magnoliopsida (or Dicotyledons) includes 8 subclasses, 126 orders, c. 440 families, almost 10,500 genera, and no less than 195,000 species; and class Liliopsida (or Monocotyledons) includes 4 subclasses, 31 orders, 120 families, more than 3,000 genera, and about 65,000 species.This book contains a detailed description of plant orders, and descriptive keys to plant families providing characteristic features of the families and their differences.
Download or read book Angiospermae Ordnung Ranunculales written by Paul Hiepko and published by . This book was released on 1995 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second volume of 'Die natürlichen Pflanzenfamilien' is presented now in the new format: the book contains an extensive General Part including contributions of different authors specializing in various fields of botany and it is written mainly in English. The first volume of this kind on the family Loganiaceae was published in 1980. The Ranunculaceae is a moderately large family with 59 genera and ca. 2500 species. Many of these have beautiful flowers or substances with strong physiological activity. They are used as ornamental or medicinal plants. This family shows great diversity in both vegetative and reproductive structures as well as in ecology. It retains many primitive characters and is regarded as one of the most primitive angiospermous families, but on the other hand it often presents quite specialized or advanced features. Therefore the family has attracted attention of many botanists from various points of view, and its members have been studied not only taxonomically, but also morphologically, anatomically, embryologically, palynologically, cytologically, phytochemically, serologically, and so on. Thus the Ranunculaceae are indeed an intensively studied family. The main author of this book, M. Tamura has been studying the family taxonomically for more than 40 years. In the history of the taxonomic studies of the Ranunculaceae, there were three monumental works. The first is that of A. P. De Candolle. In the first volume of his 'Systema Naturale' (1817) the family has been monographed at the species level for the first time. His work was excellent and gave a sound base to the taxonomy of the family and influenced the subsequent work for a long time. The second monograph at the generic level is that of K. Prantl (1888) which appeared in 'Die natürlichen Pflanzenfamilien'. This author used anatomical and embryological characters, in addition to traditional morphological ones for the classification of the family, and tried to make a phylogenetic sys
Download or read book The Kew Record of Taxonomic Literature Relating to Vascular Plants for written by and published by . This book was released on 1984 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Horticultural Abstracts written by and published by . This book was released on 1987 with total page 1894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pollen Morphology and Phylogenetic Relationships of the Berberidaceae written by Joan W. Nowicke and published by . This book was released on 1981 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pollen et spores written by and published by . This book was released on 1984 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seventh Bibliographic Index to the Pollen Morphology of Angiosperms written by Camille Tissot and published by . This book was released on 1994 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Archivio botanico italiano written by and published by . This book was released on 1990 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1983 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Travaux de la Section scientifique et technique written by and published by . This book was released on 1986 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Morphology Development and Systematic Relevance of Pollen and Spores written by Michael Hesse and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: Palynology, the science of fossil and recent spores/pollen grains, is of high importance, both in many pure and applied fields of the natural sciences (e.g. in botany, geology, climatology, archeology and medicine). It is not only an auxiliary science, but can certainly stand for itself. The "classical" palynology subjects, pollen morphology and systematics, are at present influenced by many modern approaches, e.g. from cell biology, analytical electron microscopy, morphometry, up to com- puter-aided-design of threedimensional reconstruction. In recent years fascinating informations have come to light, and new insights have given rise to changing scientific concepts. During the XIV International Botanical Congress, held in Berlin in 1987, a symposium was devoted to important topics of (actuo)palynology. Nine of its innovative, major contributions are presented in this volume. They cover the comparative morphology and the systematic/evolutionary significance of pollen/spores in critical taxa, aspects of pollen development (cytoskeleton), the substructure of sporopollenin, homologies between wall strata of ferns, gymnosperms and angiosperms, and important (but so far underrated) physical aspects of harmomegathy and pollen transport (fluid versus solid mechanics).
Download or read book Floristic Characteristics and Diversity of East Asian Plants written by Peter H. Raven and published by Springer. This book was released on 1998 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: East Asia is the area of the world with the richest plant biodiversity. In 45 chapters, this book presents and discusses the floristic characteristics and the diversity of East Asian plant species with special emphasis on the system evolution of the most important taxa. From the perspectives of geobotany, plant systematics and plant cytology the utilization and conservation of plant resources are comprehensively dealt with.
Download or read book Botany Illustrated written by Janice Glimn-Lacy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a discovery book about plants. It is for students In the first section, introduction to plants, there are sev of botany and botanical illustration and everyone inter eral sources for various types of drawings. Hypotheti ested in plants. Here is an opportunity to browse and cal diagrams show cells, organelles, chromosomes, the choose subjects of personal inter. est, to see and learn plant body indicating tissue systems and experiments about plants as they are described. By adding color to with plants, and flower placentation and reproductive the drawings, plant structures become more apparent structures. For example, there is no average or stan and show how they function in life. The color code dard-looking flower; so to clearly show the parts of a clues tell how to color for definition and an illusion of flower (see 27), a diagram shows a stretched out and depth. For more information, the text explains the illus exaggerated version of a pink (Dianthus) flower (see trations. The size of the drawings in relation to the true 87). A basswood (Tifia) flower is the basis for diagrams size of the structures is indicated by X 1 (the same size) of flower types and ovary positions (see 28). Another to X 3000 (enlargement from true size) and X n/n source for drawings is the use of prepared microscope (reduction from true size). slides of actual plant tissues.
Download or read book Male Sterility in Higher Plants written by Mohan L.H. Kaul and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt: " . . . . . . Nature has something more in view than that its own proper males should fecundate each blossom. " Andrew Knight Philosophical Transactions, 1799 Sterility implicating the male sex solely presents a paradoxical situation in which universality and uniqueness are harmoniously blended. It maintains a built-in outbreeding system but is not an isolating mechanism, as male steriles, the "self-emasculated" plants, outcross with their male fertile sibs normally. Both genes (nuclear and cytoplasmic) and environment, individually as well as conjointly, induce male sterility, the former being genetic and the latter nongenetic. Genetic male sterility is controlled either exclusively by nuclear genes (ms) or by the complementary action of nuclear (lr) and cytoplasmic (c) genes. The former is termed genic and the latter gene-cytoplasmic male sterility. Whereas genic male sterility exhibits Mendelian inheritance, gene-cytoplasmic male sterility is non-Mendelian, with specific transmissibility of the maternal cytoplasm type. Genetic male sterility is documented in 617 species and species crosses com prising 320 species, 162 genera and 43 families. Of these, genic male sterility occurs in 216 species and 17 species crosses and gene-cytoplasmic male sterility in 16 species and 271 species crosses. The Predominance of species exhibiting genic male sterility and of species crosses exhibiting gene-cytoplasmic male sterility is due to the fact that for the male sterility expression in the former, mutation of nuclear genes is required, but in the latter, mutations of both nuclear and cytoplasmic genes are necessary.
Download or read book PASCAL folio written by and published by . This book was released on 1984 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
