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Walnut Stem 30-4
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Walnut Stem 30-4

March 12, 2013
Scanning electron microscope image of Juglans nigra 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. Juglandales Juglandaceae (walnut family) Juglans nigra Instrument: ZEISS962 SEM Credit: Louisa Howard