Angiosperm Morphology: Smaller Vascular Bundle in Leaf Blade of Syringa
cross section: Syringa leaf
magnification: 400x
Berkshire Community College Bioscience Image Library
Both midrib and smaller vascular bundles in the blades are collateral with large thick-walled xylem vessels towards the adaxial surface and smaller sieve tubes and companion cells of phloem towards the abaxial surface of the leaf. A largely parenchymatous ring of bundle sheath cells is present but difficult to distinguish in all but the smallest vascular bundles.
Large masses of collenchyma support mid rib and larger vascular bundles towards the adaxial and abaxial surfaces, but do not extend into the blade.
Technical Questions:bioimagesoer@gmail.com
Angiosperm Morphology: Smaller Vascular Bundle in Leaf Blade of Syringa
cross section: Syringa leaf
magnification: 400x
Berkshire Community College Bioscience Image Library
Both midrib and smaller vascular bundles in the blades are collateral with large thick-walled xylem vessels towards the adaxial surface and smaller sieve tubes and companion cells of phloem towards the abaxial surface of the leaf. A largely parenchymatous ring of bundle sheath cells is present but difficult to distinguish in all but the smallest vascular bundles.
Large masses of collenchyma support mid rib and larger vascular bundles towards the adaxial and abaxial surfaces, but do not extend into the blade.
Technical Questions:bioimagesoer@gmail.com