Magno'lia virginia'na (glau'ca), M. Acumina'ta and M. Tripet'ala. -- Magnoliaceae. The bark, U.S.P. 1820-1880; United States; trees 6-28 M. (20-90 degrees) high; flowers white, fragrant; fruit cones; bark in thin quills or curved pieces, orange-brown, glossy, warty, fissured, astringent, bitter; contains volatile oil, resin, magnolin, tannin. Used for malaria, rheumatism, gout, intermittents, catarrhs; in decoction, infusion, tincture. Dose, 3ss-1 (2-4 Gm.).