11. Boron is not relocatable in the plant via the phloem . 12. The pericycle is located between the endodermis and phloem in plant roots. 13. He is best known for the phloem pressure flow hypothesis. 14. Between the xylem and phloem is a meristem called the vascular cambium. 15. These xylem strands have a cambium, and a secondary phloem forms. 16. Nonvascular land plants are embryophytes that lack the vascular tissues xylem and phloem . 17. It can also spread through phloem for longer distance movement within the plant. 18. They are usually associated with the xylem and phloem of the vascular bundles. 19. It functions as a photosynthetic product, phloem translocate, and storage carbohydrate. 20. Most of these cells transform into xylem and phloem .