​TULIP-TREE, Liriodendron tulipifera (Nat. Ord. Magnoliaceae), a North American tree of great beauty, with peculiarly four-lobed, truncate leaves and solitary tulip-like sweet-scented flowers, variegated with green, yellow and orange. It is hardy in England, but while young it requires protection from cold, cutting winds. In habit it resembles a somewhat stiff-growing plane tree, and becomes fully as large. It does not flourish in the atmosphere of towns. It thrives best in deep sandy loam, and is propagated by seeds.