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Chapter 8 Structure of Woody Plants - Coggle Diagram

- - - - Bundle
    - - Develops from parenchyma cells
      - Between vascular bundles
    - - Give rise to axial cells
      - secondary xylem & phloem
      - long cells
    - - Short cells
      - Give rise to rays
      - secondary xylem & phloem
  - - - Perpendicular to cambiums surface
      - Divide longitudinally
  - - - Fusiform initials
      - Regular horizontal rows
    - - form irregularly
- - - - Cells formed in interior vascular cambium
      - secondary xylem
    - - Derived from fusiform initials
    - - Develops from ray initials
    - - All basal angiosperms
      - Eudicots
      - Large amounts of fibers
    - - Conifers
        
        Pines
        
        Redwoods
      - Few or no fibers
      - Softer consistency
    - - Two basic types
        
        Procumbent cells
        
        Longer radially than tall
        
        little/no cross-field pitting
        
        Upright cells
        
        Taller than long
        
        extensive cross-field pitting
      - Store carbohydrates
      - Conduct material over short distances
  - - - First wood formed
      - Spring wood
      - High proportion of wide vessels
      - In conifers
        
        Wide tracheids
    - - Summer wood
      - Transpiration is less
      - Lower proportion of vessels
    - - Early and late wood
      - 1 years growth
      - growth ring
    - - Vessels located throughout growth ring
    - - Vessels restricted to early wood
  - - - Dark
    - - Light
    - - A plug
  - - - Formed in response to stress
    - - Reaction wood of dicots
      - formed on upper side of branch
    - - Gymnosperms
      - Lower side of branch
- - - - secondary phloem
      - Phellogen
      - Inner cell
    - - Phellem cell
      - Outer cell
    - - Only a layer or two formed
      - Not present in all species
      - Parenchyma cells produces to the inside
        
        by cork cambium
    - - Technical term for bark
      - Cork
      - Cork cambium
      - Any enclosed tissue
        
        Such as secondary phloem
    - - Outside the innermost cork cambium
    - - Secondary phloem between vascular cambium
      - innermost cork cambium
  - - - Region of aerenchymatous cork
- - - - Undergo secondary growth
  - - - Undergo secondary growth
- - - - Produce secondary bodies
      - Bodies differe from common type
      - called anomalous secondary growth
    - - Type of secondary phloem
      - Located between two bands of xylem
    - - Secondary vascular bundles
        
        Contain xylem & ploem
        
        narrow cells
        
        Differentiate
  - - - Increase in width
      - addition of adventitious roots
        
        In palms