Tree-Mallow, the Sea, or Velvet-leaf, Lavatera arborea, L. an indigenous biennial, growing on the sea-shores, where it flowers from July to October. - This being the only native species of eleven plants, belonging to the same genus, we shall briefly remark, that all the Tree-mallows deserve to be more generally cultivated, both in gardens and fields ; not only for their elegant flowers, which abound with honey, but chiefly for the valuable material obtained from their fibrous stalks : - We learn from BRchstein, that such stalks may, with equal advantage, be converted into paper, and packthread or bass, serving as a substitute for hemp.