11. Their trunks produced secondary xylem , meaning they were made of wood. 12. Between the xylem and phloem is a meristem called the vascular cambium. 13. Xylem tissue in unifacial cambium plants was particularly structurally efficient.14. Unwounded trees had low amounts of resin in xylem compared with bark. 15. These xylem strands have a cambium, and a secondary phloem forms. 16. In 2016, Tideland was acquired by Xylem , Inc. 17. Water transport is aided with the help lipids found in the xylem . 18. These are found in the vessels . tracheids and fibers of xylem . 19. Bupirimate has translaminar mobility and systemic translocation in the xylem . 20. Nonvascular land plants are embryophytes that lack the vascular tissues xylem and phloem.
