noun
- plural of phellogen; layers of cells in plant stems and roots that produce cork tissue
Usage: botanical
Examples
- The phellogens in the oak tree’s bark were actively dividing to form new cork cells.
- Botanists studied the phellogens to understand how trees develop their protective outer layers.
- The phellogens produce both cork cells outwardly and phelloderm cells inwardly.
- During secondary growth, phellogens replace the epidermis in woody plants.
- The activity of phellogens increases during the growing season.
- Researchers examined the phellogens under a microscope to observe cell division patterns.