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Nicotiana alata Leaf 8 Vein
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Nicotiana alata Leaf 8 Vein

March 7, 2013
Scanning electron microscope image of Nicotiana alata leaf vein cross section. Image shows outer epidermal layer, followed by the cortex and then large vascular bundles. The vascular bundles contain the phloem (nearest the cortex) and xylem. Instrument: ZEISS962 SEM Credit: Louisa Howard


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