Manglietia was the name of a genus of flowering plants in the family Magnoliaceae, with about 40 Asian species listed. The genus is now considered a synonym of the well-known and similar Magnolia. Manglietia was the name of a genus of flowering plants in the family Magnoliaceae, with about 40 Asian species listed. The genus is now considered a synonym of the well-known and similar Magnolia. They are trees with leathery leaves and green or red flowers.