Chapter 26

Distinguish between the following: axial system and radial system; fascicular cambium and interfascicular cambium; inner bark and outer bark; conducting phloem and nonconducting phloem.

By means of simple, labeled diagrams, compare the structure of a woody eudicot root with that of a woody eudicot stem at the end of the first year's growth. Assume that the root is triarch and the primary vascular system of the stem consists of discrete vascular bundles.

If a nail were driven into a tree at a height of five feet from ground level, and the tree increased in height by, on average, two feet per year, approximately how high above ground level would the nail be 10 years later? Explain your answer.

What structural feature of wood is responsible for the visibility of growth rings?

Of what importance are lenticels to the plant?

The terms "hardwood" and "softwood" do not accurately express the degree of density or hardness of wood. Explain.