《The Elements of Botany》 - 免费有声读物

《The Elements of Botany》 - 免费有声读物

作者:Asa Gray,

语言:English

1 / 22SECTION I. INTRODUCTORY

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22 章节
  • 1. SECTION I. INTRODUCTORY
  • 2. SECTION II. FLAX AS A PATTERN PLANT
  • 3. SECTION III. MORPHOLOGY OF SEEDLINGS
  • 4. SECTION IV. GROWTH FROM BUDS; BRANCHING
  • 5. SECTION V. ROOTS
  • 6. SECTION VI. STEMS
  • 7. SECTION VII. LEAVES -Part 1
  • 8. SECTION VII. LEAVES -Part 2-4
  • 9. SECTION VIII. FLOWERS. Part 1-3
  • 10. SECTION VIII. FLOWERS. Part 4-5
  • 11. SECTION IX. STAMENS IN PARTICULAR
  • 12. SECTION X. PISTILS IN PARTICULAR
  • 13. SECTION XI. OVULES
  • 14. SECTION XII. MODIFICATIONS OF THE RECEPTACLE
  • 15. SECTION XIII. FERTILIZATION
  • 16. SECTION XIV. THE FRUIT
  • 17. SECTION XV. THE SEED
  • 18. SECTION XVI. VEGETABLE LIFE AND WORK. Parts 1-4
  • 19. SECTION XVI. VEGETABLE LIFE AND WORK. Parts 5-6
  • 20. SECTION XVII. CRYPTOGAMOUS OR FLOWERLESS PLANTS
  • 21. SECTION XVIII. CLASSIFICATION AND NOMENCLATURE
  • 22. SECTION XIX. BOTANICAL WORK

关于

The book is intended to ground beginners in Structural Botany and the principles of vegetable life, mainly as concerns Flowering or Phanerogamous plants, with which botanical instruction should always begin; also to be a companion and interpreter to the Manuals and Floras by which the student threads his flowery way to a clear knowledge of the surrounding vegetable creation. Such a book, like a grammar, must needs abound in technical words, which thus arrayed may seem formidable; nevertheless, if rightly apprehended, this treatise should teach that the study of botany is not the learning of names and terms, but the acquisition of knowledge and ideas. No effort should be made to commit technical terms to memory. Any term used in describing a plant or explaining its structure can be looked up when it is wanted, and that should suffice. On the other hand, plans of structure, types, adaptations, and modifications, once understood, are not readily forgotten; and they give meaning and interest to the technical terms used in explaining them. - Summary by Asa Gray

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