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Chapter 6: Leaves (External Structure of Foliage Leaves (petiole=stalk…
Chapter 6: Leaves
External Structure of Foliage Leaves
Photosynthesis
no fungi, bacteria, or epifoliar algae
sunlight comes from one direction
portion of leaf flat and wide
thin for light penetration
flat part=leaf blade(lamina
lower side=dorsal surface
larger veins
petiole=stalk
Holds blade into light
if not petiole=sessile leaf
petiolate
Morphology and Anatomy of Other Leaf Types
Succulent Leaves
Sclerophyllous Foliage Leaves
Leaves of Conifers
Bud Scales
Spines
Leaves with Kranz Anatomy
Insect Traps
Internal Structure of Foliage Leaves
Epidermis
Mesophyll
Petiole
Vascular Tissue
Initiation and Development of Leaves
Basal Angiosperms and Eudicots
Monocots
