File:Angiosperm Morphology Sunken Stomata in Yucca Leaf (37046634751).jpg
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| Description |
cross section: Yucca leaf magnification: 400x The leaves of Yucca show numerous structural adaptations that extend their tolerance to drought and desiccation. The epidermis is unseriate and heavily cutinized with sunken stomata evenly distributed on both adaxial and abaxial surfaces. Stomata overlay substomatal chambers and that are roofed by epidermal cells with ledge like extensions of cutin. While the mesophyll is poorly differentiated at leaf tips the body of leaf shows one or two layers of tightly packed palisade mesophyll just beneath the epidermis. The bulk of the leaf interior is occupied by spongy mesophyll with large open spaces. Idioblasts containing bundles of crystals of calcium oxalate are found in all parts of the mesophyll. Each vascular bundle is wrapped by bundle sheath cells and supported towards adaxial and abaxial surfaces by well-developed caps of supportive sclerenchyma. Abaxial sclerenchyma caps are especially well developed in the smaller peripheral vascular bundles towards the abaxial surface. |
| Date | |
| Source | Angiosperm Morphology: Sunken Stomata in Yucca Leaf |
| 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@N03/37046634751 (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 | 00:14, 23 June 2018 | | 3,264 × 1,840 (4.35 MB) | Meisam (talk | contribs) | Transferred from Flickr via #flickr2commons |
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