During secondary growth in a dicot stem, the interfascicular cambium is formed by the dedifferentiation of which of the following permanent tissues?

Step-by-step solution

In dicot stems, the cells of the medullary rays adjoining the intrafascicular cambium become meristematic through the process of dedifferentiation. This newly formed meristematic tissue is called the interfascicular cambium. The intrafascicular cambium is already present as a primary meristem between the primary xylem and primary phloem. The pericycle is involved in forming lateral roots and cork cambium in roots, but not the interfascicular cambium in stems. The endodermis does not dedifferentiate to form the vasc