Contractions. - Tabac. Tab.

Nicotiana tabacuin. Nat. ord., Solanaceae.

Tobacco. For. names: German, Tabac; French, Tabac.

Habitat. - America, and cultivated largely there and elsewhere.

Parts employed. - The fresh leaves.

Characters. - An annual, from 3 to 6 feet high. Leaves large, ovate, or lanceolate, acuminate, pale green, bearing numerous short glandular hairs. Calyx bell-shaped, hairy, somewhat viscid, and divided at its summit into 5 pointed segments. Corolla tube twice as long as the calyx, of a greenish hue, swelling at the top into an oblong cup, and ultimately expanding into a 5-lobed, plated, rose-coloured border; the whole corolla is very viscid. When dry, the leaves are of a mottled brown colour, having a peculiar well-known odour and nauseous, bitter, acrid taste. When the dry leaves are distilled with a solution of Potash, they yield an alkaline fluid, which has the peculiar odour of Nicolia, and precipitates with Perchloride of Platinum and Tincture of Galls.

Time for collecting. - Before the flowers are developed.

Preparation. - Tincture, corresponding in alcoholic strength with proof spirit.

Reference to Horn. Proving. - Hartlaub and Trinks, iii.

Proper forms for dispensing. - φ and lx, Tincture only. 1 and upwards, Tincture, Pilules, or Globules.