Lĕp'i-do-dĕn'dron, n.

noun

n. [Gr. λεπίς, λεπίδος, scale, and δένδρον, tree.] (Paleon.) A fossil tree of the carboniferous age in geology, having the exterior marked with scars, mostly in a quincunx order, produced by the separation of the leaf-stalks. Dana.

A branching Lepidodendron stem is shown with a diamond-patterned surface and rows of projecting branch scars.
Lepidodendron.