Angiosperm Leaf: Leaf Blade Vascular Bundle in Nymphea
cross section: Nymphaea leaf
common name: Waterlily
magnification: 100x
Berkshire Community College Bioscience Image Library
Vascular bundles are centrally located with collaterally arranged xylem toward the adaxial surface and phloem to the abaxial surface. Particularly noticeable is an outer bundle sheath of large parenchyma cells. All vascular tissues are highly reduced except in the mid rib area where bundles with defined phloem, proto and meta xylem, and a protoxylem lacunae can be seen. Tannin rich parenchyma cells are occasionally associated with phloem of larger bundles.
The mid rib area is supported towards the abaxial surface by a wide wedge of supportive collenchyma.
Technical Questions:bioimagesoer@gmail.com
Angiosperm Leaf: Leaf Blade Vascular Bundle in Nymphea
cross section: Nymphaea leaf
common name: Waterlily
magnification: 100x
Berkshire Community College Bioscience Image Library
Vascular bundles are centrally located with collaterally arranged xylem toward the adaxial surface and phloem to the abaxial surface. Particularly noticeable is an outer bundle sheath of large parenchyma cells. All vascular tissues are highly reduced except in the mid rib area where bundles with defined phloem, proto and meta xylem, and a protoxylem lacunae can be seen. Tannin rich parenchyma cells are occasionally associated with phloem of larger bundles.
The mid rib area is supported towards the abaxial surface by a wide wedge of supportive collenchyma.
Technical Questions:bioimagesoer@gmail.com