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Last updated on April 18, 2014 at 21:21 EDT
Nicotiana alata Stem 9-2
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Nicotiana alata Stem 9-2

March 12, 2013
Scanning electron microscope image of Nicotiana alata stem 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. Solanales Solanaceae Nicotiana alata Instrument: ZEISS962 SEM Credit: Louisa Howard