(Witch-hazel.)

Origin. - The dried leaves of Hamamelis Virginiana L., a shrub 6 to 10 feet (1.8-3.0 M.) high, growing in damp woods and thickets in Canada and the United States.

Description and Properties. - Short-petiolate, about 4 inches (10 Cm.) long, obovate or oval, slightly heart-shaped and oblique at the base, sinuate-toothed, thickish, nearly smooth, inodorous; taste astringent and bitter.

Official Preparations

Aqua Hamamelidis - Aquae Hamamelidis - Hamamelis Water. - The final product here is a distillate, while the old Extractum Hamamelidis Fluidum is a percolate, now designated Fluidextractum Hamamelidis Foliorum. The aqua contains about 15 per cent. of the alcohol.

Dose. - Average dose: 2 fluidrams (8 Cc), U. S. P.

Fluidextractum Hamamelidis Foliorum - Fluidextratcti Hamamelidis FoliorumFluidextract of Hamamelis Leaves. - Dose, 30 minims (2 Cc), U. S. P.