Figure 3From: Proliferation of axial parenchymatic xylem cells is a key step in wound closure of girdled stems in Pinus canariensis New traumatic periderm and initiation of healing callus. Cross section in bright-field microscopy of the lateral edge 15 days after wounding. New traumatic periderm (arrow) in the cortex. Proliferation in the cambial zone, curving the cambium inwards (white curved line).Back to article page