Contractions. - Hyos. Hyo.

Hyoscyamus niger. Nat. ord., Atropaceae.

Synonyms. - H. vulgaris, H. lethalis, H. flavus.

Fig. - Flora Horn., pl. 36.

Henbane, Hogbean. For. names: German, Bilsen-kraut; French, Jusquiame; Italian, Beleno, Yeleno; Spanish, Miemendro, Velheno.

Habitat. - Waste and stony places in Central and Southern Europe. In Britain, chiefly on rubbish about villages and old castles.

Flowering time. - Summer.

Parts employed. - The herbaceous part of the biennial plant.

Characters. - A coarse, erect, branching annual or biennial, 1 to 2 feet high, more or less hairy and viscid, and with a nanseous smell. Leaves rather large, sessile, the upper ones clasping the stem, ovate, irregularly pinnatifid. Flowers very shortly stalked, corolla pale dingy yellow, with purple veins. Calyx persistent, strongly veined, with 5 stiff, broad, almost prickly lobes. Capsule globular, with numerous small seeds.

Time for collecting. - When partially in flower.

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

Reference to Horn. Proving. - E. A. M. L., iv.

Proper forms for dispensing. - φ to 1, Tincture only. 3x and upwards, Tincture, Pilules, or Globules.

Average loss of moisture, 82 per cent.