ALNUS SERRULATA, Aiton. Black alder. Near streams from Canada to Florida. Leaves vuluerary and astringent repel the milk when bruised and applied to the breast. Bark styptic, dies brown, and with vitriol black. The cones also die black. The inner of the root is emetic and dies yellow. The wood produces a light charcoal, the very best for gunpowder. The A. undulata, A, glutinosa, A. glauca, &c. found in mountains and Canada, are equivalent. The Prinos, also called Alder with us, has different properties, and bears red berries; both are called Sulling by the Canada tribes, who use the bark in poultice for swellings and strains.