Alstonia (Alstonia scolaris, A constricta): There are 43 species of alstonia trees. The bark of the tree is used medicinally in the Pacific Rim and India. Constricta, which is native to Australia, is used extensively as an Aboriginal folk remedy for fever, chronic diarrhea, dysentery and rheumatism. Scholaris, found growing mostly in India, Pakistan and the Philippines, is used for the same purposes, [...]

Aquilaria malaccensis (Agarwood): Internally for digestive and bronchial complaints, fevers, and rheumatism (bark, wood). Because of its astringent nature, the powdered wood of the aloe tree provide an effective skin tonic and is recommended by Ayurvedic physicians as an application for restoring pigment in leucoderma. Powdered aloeswood provides an antiseptic so gentle it is used for ear and eye infections [...]