File:Angiosperm Leaf Midrib Vascular Bundle in Nerium (37814262556).jpg

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cross section: Nerium leaf common name: Oleander magnification: 400x

Vascular bundles of the blade and midrib and smaller are closed and collateral with xylem towards the adaxial surface and phloem towards the abaxial surface. All vascular bundles are surrounded by parenchymatous bundle sheaths. The mid rib vascular bundle is large with a nearly continuous ring of supportive sclerenchyma, overlaid by storage parenchyma and further reinforced by masses of subepidermal collenchyma. All these tissues are particularly well developed towards the abaxial surface.

Collenchyma does not extend throughout the leaf blade except for small zones at leaf tips.
Date
Source Angiosperm Leaf: Midrib Vascular Bundle in Nerium
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@N03/37814262556. 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 (5.68 MB)Meisam (talk | contribs)Transferred from Flickr via #flickr2commons

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