Presentation on theme: "Section Two Stems Definition: important vegetative organ. Physiological function conduction supporting function preservation breeding Medicinal value."— Presentation transcript:
Section Two Stems Definition: important vegetative organ. Physiological function conduction supporting function preservation breeding Medicinal value
二、 Inner Structure of Stem ① Structure of Stem Apex meristematic zone elongation zone maturation zone
② Primary Structure of Dicot Stems epidermis （ trichome and stoma ） cortex vascular cylinder Definition : endarch: The order of differentiation and maturation of primary xylem of stem is from the inside to outside, and is known as endarch.
Review Questions 一.Definition node, internode, exarch, endarch, annual ring, early wood, late wood, sap wood, heart wood 二.simple answer 1.what is the difference of the stem of Monocotyledoneae and Dicotyledoneae? 2.what is the function of the stem? 3.How about the secondary structure of the woody stem?
Your consent to our cookies if you continue to use this website.