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genus of evergreen trees or shrubs with white funnel-shaped flowers and milky sap; tropical Africa to southeastern Asia and Polynesia

genus of evergreen trees or shrubs with white funnel-shaped flowers and milky sap; tropical Africa to southeastern Asia and Polynesia

Dita bark, the dried bark of Alstonia scholaris and A. constricta, trees of tropical Africa, Asia, and Australia; bitter tonic, employed in malaria and dysentery in the form of infusion or tincture.

Dita bark obtained from A. scolaris. A bitter tonic used in the treatment of dysentery.