Vascular Cambium

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A vascular cambium is a lateral meristem. In three dimensions, it forms a hollow cylinder with the xylem to the inside and phloem to the outside. In Medicago, it forms in two regions, but results in a continous tissue layer. Fascicular cambium forms from procambium between the primary phloem and primary xylem. Interfascicular cambium, forms from ground meristem inthe region between the vascular bundles.

• Link to image of vascular cambium in a cross section of Medicago stem.
• Link to image of vascular cambium in a cross section of Tilia stem.
• Link to image of a cross section of Tilia and of a tangential section of Robinia. In tangential section one can see that the vascular cambium is a sheet of cells.