File:Angiosperm Leaf Leaf Blade Vascular Bundle in Nymphea (37321107810).jpg

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cross section: Nymphaea leaf common name: Waterlily magnification: 100x

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.
Date
Source Angiosperm Leaf: Leaf Blade Vascular Bundle in Nymphea
Author Berkshire Community College Bioscience Image Library

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Creative Commons CC-Zero This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.

This image was originally posted to Flickr by bccoer at https://flickr.com/photos/146824358@N03/37321107810. It was reviewed on 23 June 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero.

23 June 2018

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current00:19, 23 June 2018Thumbnail for version as of 00:19, 23 June 20183,264 × 1,840 (890 KB)Meisam (talk | contribs)Transferred from Flickr via #flickr2commons

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