A long tree has several branches. The tissue that helps in the sideways conduction of water in the branches is

Xylem vessels are made up of hollow cells that carry water and minerals from roots of plant to the trunk.

Collenchyma cells are elongated cells having irregularly thick walls; they provide support and structure. Xylem parenchyma are the living cells in xylem; they store metabolites. Parenchyma are thin walled cells found in stems, roots and leaves, they serve as food storage tissue of plants.