. The elements of materia medica and therapeutics (Volume 2) . or two teaspoonfuls, for the purposementioned. OTHER MEDICINAL VIOLACEjE. The roots of several species of Ionidium possess emetic qualities,and have been employed as substitutes for our officinal ipecacuanha(Cephaclis Ipecacuanha). The root of Ionidium Ipecacuanha, a native of the Brazils, istermed false Brazilian ipecacuanha. It yielded Pelletier five percent, of emetine. The dose of it as an emetic, is 3ss. to 3j. infusedin water. The root of the Ionidium micropiiyllum, or the Cuichunchully,a native of Quito, possesses similar pr
. The elements of materia medica and therapeutics (Volume 2) . or two teaspoonfuls, for the purposementioned. OTHER MEDICINAL VIOLACEjE. The roots of several species of Ionidium possess emetic qualities,and have been employed as substitutes for our officinal ipecacuanha(Cephaclis Ipecacuanha). The root of Ionidium Ipecacuanha, a native of the Brazils, istermed false Brazilian ipecacuanha. It yielded Pelletier five percent, of emetine. The dose of it as an emetic, is 3ss. to 3j. infusedin water. The root of the Ionidium micropiiyllum, or the Cuichunchully,a native of Quito, possesses similar properties. Dr. Bancroft (Comp. to Bot. Mag. i. 278) speaks favourably of itin Elephantiasis tuberculata. But the specimens which he senthome as Cuichunchully are said by Sir W. Hooker to be identicalwith Ionidium pat vijlorum, Vent. Dr. Lindley (Flora Medica, ) however received from the Hon. VV. F. Strangways the Cui-chunchully dc Cuenca, which was the I. microphyllum of Hum-boldt. [The root of the Viola pedata is officinal, Sec. List, U. S. P.] Fig. Root oflonMium Ipecacuanha. 680 ELEMENTS OF MATERIA MEDICA. Order LXXIX.—, Lindky.—THE ROCK-ROSE TRIBE. Cisti, Jussieu. Cistoide/E, Ventenal. Cistineje, De Candollc. The substance called Ladanum is a resinous exudation from the Cistus creticus, growing, as its name implies, in Crete. In the timeFig 246. of Dioscorides it was collected by combing the beards of the goats which browse onthe plant. According to Tourncfort (Voy-age into the Levant, i. p. 79, 1741), andSieber, it is now collected by a kind ofwhip or rake, with a double row of leathernthongs. With this the countrymen brushthe plants, and when the whips are suffi-ciently laden with the juice, it is scrapedoff by knives, and made into cakes. Pureladanum consists of resin and volatile oil86, wax 7, aqueous extract 1, and earthymatters and hairs 6 (Guibourt). Pelletierfound 72 per cent, of sand in it. It pos-sesses stimulant properties, and was for-merly
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