ARISTOLOCHIA — BIRTinVORT. 233 



Preparations. — Commonly administered in infusion. 



Medical Properties and L«e^\— Wild ginger has a peculiar, pungent, aro- 

 matic taste, and is an aromatic stimulant. In hot infusion it pi'oduces 

 diaphoresis, and may relieve the pains of colic. It is, however, less agTee- 

 able to most persons than many other drugs of its class, and scarcely de- 

 serves to rank as a medicinal agent. 



ARISTOLOCHIA.— BiRTnwoKT. 



Aristolochia Serpentaria Linne. — Virginia Snakeroot. 



Description. — Calyx tubular, contorted, bent in the shape of the letter 

 S, dilated at both extremities, the Hmb 5-lobed, and somewhat 2-iij)ped. 

 Stamens 6, the sessile anthers ad- 

 herent to the 3-lobed sigma. Pod 

 6-valved, 6 -angled, many-seeded. 



A perennial herb. Stems sev- 

 eral, from a short, fibrous-rooted 



rhizome ; they are simple or ^^^^^J f /< ^i ^^-''^ /^^ 

 slightly branched, flexuous, some- 

 what swollen at the joints, about 

 one foot high, often tinged with 

 red, especially near the base. 

 Leaves alternate, ovate or oblong, 

 cordate or halberd-shaped at the 

 base, pointed, entire, petiolate. 

 Flowers near the root, axillai-y, 

 on short peduncles, of a stiff 

 leathery texture and a dull brown- 

 ish-purple color, appearing in mid- 

 summer. 



Habitat. — In rich woods from 

 Connecticut to Indiana and south- 

 ward ; most common along the 



Fig. 150.— Aristolochia Serpentaria. 



Alleghanies. 



Parts Used. — The rhizome and rootlets. Official name : Serpentaria — 

 United States Pharmacopieia. 



Constituents. — A small proportion of volatile oil, an amorphous bitter 

 principle, and common vegetable constituents. 



Preparations. — Extractum serpentarise fluidum — fluid extract of ser- 

 pentaria ; tinctura serpentariae — tinctui'e of serpentaria. One of the 

 constituents of tinctura cinchonse composita — compound tincture of cin- 

 chona. — United States Pharmacopoeia. An infusion was formerly official. 



Medical Properties and Uses. — Serpentaria is a stimulant tonic, but may 

 also produce diaphoretic, diiiretic, or emetic effects, according to the dose 



