AP BIOLOGY

Detailed explanation-1: -Phellogen (cork cambium) is a meristem that produces periderm tissue.

Detailed explanation-2: -Introduction to Vascular Plant Morphology and Anatomy In older axes, therefore, periderm tissue performs the function of the primary epidermis, that is, to protect the plant from infection and desiccation. The periderm includes the phellogen or cork cambium, cork cells (phellem), and sometimes phelloderm.

Detailed explanation-3: -What is Cork Cambium? Cork cambium is a plant tissue that is part of a plant’s outer covering, or periderm. The cork cambium definition states that it is the single-cell layer of cells that produces cork and phelloderm cells. It is found in the stems and trunks of woody plants such as angiosperms and gymnosperms.

Detailed explanation-4: -A cambium can also be defined as a cellular plant tissue from which phloem, xylem, or cork grows by division, resulting (in woody plants) in secondary thickening. It forms parallel rows of cells, which result in secondary tissues.