Family: Burseraceae

Bengali/vernacular name:Salai, Gandhabiroja.
English name: Indian Olibanum, Frankincense.

Description of the plant:
BOSWELLIA SERRATA Roxb. is a deciduous middle-sized tree. Leaves imperipinnate, 20-38 cm long, leaflets lanceolate or ovate acute or obtuse, inequilateral, sessile, pubescent, coarsely crenate-serrate. Flowers in axillary racemes, shorter than the leaves. Fruit a trigonous drupe, 12 mm long.

Using information:
The bark is acrid, cooling, binding and tonic; cures asthma, dysentery, skin diseases and ulcers. Resin of the plant is aromatic, alterative, demulcent, refrigerant, diuretic, aperient, emmenagogue and ecbolic. Oil is stimulant; in the form of ointment, used externally as a rubefacient and stimulant to boils and carbuncles. The gum is antipyretic, antidysenteric, astringent to the bowels and expectorant; used in rheumatic and nervous diseases, scrofulous affections, fevers, diaphoresis, convulsions, mouth sores, dysentery, diabetes, urinary disorders, skin diseases, bronchitis, asthma, cough and chronic laryngitis; mixed with ghee it is prescribed in gonorrhoea, and syphilitic cases. The gum in the form of oily solution has good influence over the growth of the hair.

Boswellia Serrata

Essential oil from gum-resin is antifungal and antibacterial (Asolkar et al., 1992).

Chemical constituents:
Chief constituents of the plant are gum, resin and essential oil. Bark contains ß-sitosterol, gum resin, a diterpene alcohol serratol and tetracyclic triterpene acids (Ghani, 2003).

Forests of Dhaka and Sylhet.