1. It is most important that these cambium layers are in contact for a successful graft. 2. They petiole and mining in the cambium layer . 3. Using their cambium layer of a branch and reach the xylem where the sap is located. 4. Tumor cells are crowded in a distinct layer beneath the vaginal epithelium ( cambium layer ). 5. Inside the phloem is a layer of undifferentiated cells one cell thick called the vascular cambium layer . 6. This stops the cambium layers from drying out and also prevents the ingress of water into the cleft. 7. There it continues to mine the cambium layer , creating a sinuate " zig-zag " trail down the trunk. 8. Furthermore, the cambium layer ( inner layer of the periosteum ) is sometimes referred to as " Ollier's layer ". 9. :According to this, it's " A disease in timber, caused by a wound in the cambium layer being attacked by fungus ". 10. Insert the prepared scion so that the cambium layers ( the green layer inside the bark ) on the scion and the understock match.