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the different forms of flowers on plants of the same species From Charles Darwin
The Different Forms of Flowers on Plants of the Same Species Charles Darwin
How is this book unique? Font adjustments & biography included Unabridged (100% Original content) Illustrated About The Different Forms of Flowers on Plants of the Same Species by Charles Darwin The Different Forms of Flowers on Plants of the Same Species is a book by Charles Darwin first published in 1877. These writings contributed to Darwin's pursuit of evidence that would support his theory of natural selection. There were only two more books to follow: The Power of Movement in Plants (1880) and The Formation of Vegetable Mould through the Action of Worms (1881). He conducted a wide range of experiments and observations and the results of these form the framework of the book. He was assisted in this work by his son, Francis Darwin who also wrote a preface for the second edition which was published two years after his father's death in 1882. The book was dedicated to his longtime friend and colleague, Harvard botany professor Asa Gray "as a small tribute of respect and affection". Using the four classifications established by Carl Linnaeus (hermaphroditic, monoecious, dioecious, polygamous), Darwin concentrated on two divisions of the hermaphroditic class, namely the cleistogamic and heterostyled. Darwin's reflections indicate the economy of nature through a process of gradual modification of plants, their structures being modified and degraded for the purpose of the large scale production of seed which is necessary and advantageous for survival. Darwin states: "Cleistogamic flowers ... are admirably fitted to yield a copious supply of seed at a wonderfully small cost to the plant." Francis Darwin indicated that the work on heterostylism had given his father extreme pleasure, especially as it had been one of the most puzzling bits of work he ever carried out. Darwin thought that hardly anyone had seen the full importance of heterostylism.
"The Different Forms of Flowers on Plants of the Same Species" is a seminal paintings authored by Charles Darwin, the famend British naturalist and evolutionary biologist. This book represents a tremendous contribution to the observe of sexual replica in plant life. In this work, Darwin meticulously examines the charming phenomenon of heterostyly, which involves the presence of wonderful floral forms within a single plant species. He offers a complete account of his experiments and observations on diverse plant species, including primroses and cowslips, to recognize the motive and significance of those extraordinary floral bureaucracy. Darwin's crucial hypothesis is that heterostyly serves as a mechanism to sell move-pollination, thereby increasing the genetic variety of plant populations. He explores how the particular preparations of stigma and anthers in special floral bureaucracy encourage pollinators to switch pollen among vegetation of various bureaucracy, preventing self-fertilization. Darwin's work on floral heteromorphism now not best contributes to our information of plant reproductive strategies but additionally extends his concept of natural choice to the area of botany. He emphasizes the position of variation and selection within the evolution of floral forms and the ecological relationships between vegetation and their pollinators.