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Dendrology: The Scientific Study of Trees

Dendrology: The Scientific Study of Trees. Chapter 3 Classification and Anatomy of Trees. Dendrology Anatomy Physiology Needle-leaf Scale-leaf Cell Permeable Xylem. 9. Tracheids 10. Gymnosperms 11. Angiosperms 12. Pholem 13. Cambium 14. Vascular rays 15. Heartwood 16. Sapwood.

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Dendrology: The Scientific Study of Trees

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  1. Dendrology: The Scientific Study of Trees Chapter 3 Classification and Anatomy of Trees

  2. Dendrology Anatomy Physiology Needle-leaf Scale-leaf Cell Permeable Xylem 9. Tracheids 10. Gymnosperms 11. Angiosperms 12. Pholem 13. Cambium 14. Vascular rays 15. Heartwood 16. Sapwood Define These Terms

  3. Needle-leaf Shapes

  4. Scale-leaf Conifers

  5. Scale-leaf Structure • Consists of a series of small scaly leaves that overlap. • They are attached to a branching stem.

  6. Entire Margins

  7. Entire Margins

  8. Toothed Leaves • Alders • Birches • Cherries • Cottonwoods • Crabapples

  9. Toothed Leaves • Elms • Hawthorns • Mulberries • Oaks • Willows

  10. Lobed Leaves • Sweetgums • Sycamores • Yellow-Poplar

  11. Lobed Leaves • Oaks • Sweetgums • Sassafras

  12. Lobed Leaves • Maples • Mulberries

  13. Pinnately Compound • Ashes • Elders • Hickories • Locusts

  14. Pinnately Compound • Pecans • Sumacs • Walnuts

  15. Bi-Pinnately Compound • Honey Locust

  16. Palmately Compound • Buckeyes

  17. Tracheid Cells Tracheids Pitts Tracheid Bundle

  18. Angiosperms • Bear seeds in an ovary • Includes all flowering trees Xylem contains only tracheid cells

  19. Gymnosperms • Bear seeds in conesIncludes pines, spruces, cedarsXylem contains tracheid cellsand vessel elements

  20. The End…………….. My Friend

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