Xylem in a cross section of Cucurbita stem - prepared slide 40x objective - UWDC - UW-Madison Libraries
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Cross section through a pine stem with view of xylem, phloem and vascular cambium - UWDC - UW-Madison Libraries
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Stem & Root Anatomy
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How to stain/dye plant cells for viewing under a light microscope? Do I need to be aware of any other factors - Quora
Secondary growth