Anatomy of Woody Stems

• It is a non-descript layer of cells immediately inside

  the phellogen.

  Phelloderm
• As the stem grows, the vascular cambium produces secondary xylem to the inside and secondary phloem to the outside.


  What happens as the stem grows?
• How to determine the age of the stem?

  by counting the number of rings
• is located at the center which functions as to transport nutrients throughout the plant system and store the nutrients within

  Pith