21. It is most important that these cambium layers are in contact for a successful graft. 22. In wood, the vascular cambium is the obvious line separating the bark and wood. 23. It is produced in the apical meristem and transported towards the roots in the cambium . 24. Cambium Networks was created when Motorola Solutions sold the Canopy and Orthogon businesses in 2011.25. Lacking secondary phloem, unifacial cambium plants developed alternative strategies to long range nutrient transport. 26. The cork cambium divides to produce waterproof cork cells externally and sometimes phelloderm cells internally. 27. They feed on the cambium , producing damage so severe it often kills the tree. 28. In the beginning these cankers develop in phloem and tissues formed by the cork cambium . 29. They contain no cambium and once formed the stem increases in diameter only in exceptional cases. 30. The infection then spreads through the inner bark and cambium around the base of the tree.
