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Leaves (Morphology & Anatomy Other leaves (Insect traps (Active traps,…

- - - - Photosynthesis occurs deeply
  - - - Extended lifetime
  - - - Unpalatable chemicals
        
        Simple leaves
        
        Perennial
        
        Evergreens
        
        Pine
  - - - Arid environments
  - - - Sundew
        
        Glandular trichomes
        
        Venus flytrap
    - - Nepenthes
- - - - Ventral surface
        
        Adaxial
      - Dorsal surface
        
        Abaxial side
    - - 1 part blade
    - - Multi-part blade
        
        Rachis
        
        Petiolule
        
        Leaflets
  - - - Prevents self-shading
      - Allows leaf flutter
      - Protects against insects
  - - - Sheathing leaf base
  - - - Larger veins side by side
        
        In monocots
    - - Netted pattern
        
        In basal angiosperms/eudicots
  - - - Leaf scar
- - - - Stomata
        
        More in lower epidermis
    - - Often many on leaves
  - - - Palisade parenchyma
        
        Photosynthesis
        
        Sometimes along both surfaces
    - - Spongy mesophyll
        
        Aerenchyma
        
        Permits CO2 diffusion
  - - - Midrib (midvein)
        
        Lateral veins
        
        Minor veins
    - - Bundle sheath extension
        
        Fibers
  - - - Stipules
- - - - Leaf primordium
        
        Lamina
        
        Midrib + 2 wings
        
        Stomata, trichomes, vascular bundles
  - - - Leaf primordium
        
        Sheathing leaf base
        
        Lamina
        
        Abaxial epidermis
        
        Adaxial epidermis
        
        Initiates next leaf primordium
- - - - Maximum light/CO2 absorption
    - - Almost all primary tissue