File:Woody Dicot Stem Cambium and Phloem in One Year Liriodendron (35879586113).jpg
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| Description |
cross section: Liriodendron stem magnification: 400x The vascular cylinder consists of a narrow outer ring of primary phloem, a middle single layered ring of vascular cambium and a deeper large ring of primary xylem. Phloem wedges of sieve tubes and companion cells are layered and interspaced with masses of thick walled sclerenchyma cells, and conspicuous caps of sclerenchyma top each wedge of phloem. The vascular cylinder is extensively interrupted by radial bands of parenchymatous rays that serve in the lateral conduction of water and nutrients. Wide phloem rays taper to a few cells wide as they dip into the xylem. Narrow single celled rays also extend out from the pith. |
| Date | |
| Source | Woody Dicot Stem: Cambium and Phloem in One Year Liriodendron |
| Author | Berkshire Community College Bioscience Image Library |
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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.
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This image was originally posted to Flickr by bccoer at https://flickr.com/photos/146824358@N03/35879586113 (archive). It was reviewed on 23 June 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 00:03, 23 June 2018 | | 3,264 × 1,840 (5.32 MB) | Meisam (talk | contribs) | Transferred from Flickr via #flickr2commons |
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