Tree tissue is composed of four main components: XYLEM (5 letters), PHLOEM (6 letters), leonora (7 letters), and SAPWOOD (7 letters). XYLEM is a type of vascular tissue that transports water and minerals from the roots to the leaves. PHLOEM is another type of vascular tissue that transports food from the leaves to the rest of the plant. Leonora is a type of tissue found in the bark of trees that helps protect the tree from disease and pests. SAPWOOD is the outermost layer of wood in a tree, which helps transport water and nutrients throughout the tree. Together, these four components make up the tree tissue.