(From Aristolochia 1178 optimus, and

Aristolochia 1180 purgamenta post partum in utero relicta). Birth-wort. It is so called, because esteemed for promoting the lochia in child-bed women. Also called adra riza.

There are several species of this plant, natives of the southern parts of Europe, whence we are supplied with the dry roots. Most of them bear the cold of this climate The roots of all the kinds arc acrid and bitter. A a 2 and their smell nauseous: they give out their virtues both to water and to spirit; but to the latter most perfectly. They hurt, however, the appetite and produce a languor in weakly constitutions. The virtues are nearly similar t except the a. serpentaria; though Dr. Alston of Edinburgh thinks that the roots of the creeping sort arc the best. The doses are from gr. v. to

Aristolochi a tenuis, vel clematitis. Creeping Birth-wort. Also Called Bushy-rooted or slender birth-wort. Aristolocliia clematitis Lin. Sp. Pi. 1364.

This root has been considered as a powerful deob-struent, particularly of the uterine system, and a warm stimulant. Dr. Alston thinks it equal to the Virginian snake root for all the purposes in which it is used. Dr. Cullen says it has been esteemed for its emmena-gogue virtues; and in some cases of retention and chlorosis, as a warm and stimulating medicine, he has found it useful; but never in cases of suppression. It has been long commended as a cure for the gout, making a considerable part of the Portland powder, and has often been employed by itself in the same manner as that powder, to be taken every day for a great length of time. It has the same power of preventing fits of the gout, and commonly with the same consequences. Cullcn's Mat. Med.

Aristolochi'a longa, et rotunda, Lin. Sp. Pi. 1364. Round and long rooted birth-wort; called also"aristolocliia mascula.

Aristolochi'a anguicida, Lin. Sp. Pi. 1362. The taste of this species is highly nauseous, and is employed against the bites of serpents by pouring the juice into the wound.

Aristolochi'a odoratissima, Lin. Sp. Pi. 1362. The smell of this species is more pleasing, but it scarcely possesses any virtues.

Aristolochi'a serpentaria, Lin. Sp. Pi. 1363. See Serpentaria.

Aristolochi'a rotunda concava. See Moscha-tellina.