. American medical botany: being a collection of the native medicinal plants of the United States, containing their botanical history and chemical analysis, and properties and uses in medicine, diet and the arts, with coloured engravings (Volume 3) . therto examined. And until a moreextensive examination has brought to light newsubstances of this class, or better defined themodes of preparation and use of those alreadyknown, we cannot wish that the South Americandrug should be diminished in our markets, orless familiar to our physicians. BOTANICAL REFERENCES. Euphorbia Ipecacuanha, Linn. Sp. p


. American medical botany: being a collection of the native medicinal plants of the United States, containing their botanical history and chemical analysis, and properties and uses in medicine, diet and the arts, with coloured engravings (Volume 3) . therto examined. And until a moreextensive examination has brought to light newsubstances of this class, or better defined themodes of preparation and use of those alreadyknown, we cannot wish that the South Americandrug should be diminished in our markets, orless familiar to our physicians. BOTANICAL REFERENCES. Euphorbia Ipecacuanha, Linn. Sp. pi.—Willd. ii. 900.—Mi-chaux, Flora, ii. 212.—Pursh, ii. 606.—Botanical Magazine, —Euphorbia inermis, &c.—Gronovius, Virg. 74.—Tithymalusflore minimo herbaceo ?—Clayton, Phil, trans, abr. viii. 331. MEDICAL REFERENCES. Schcepf, Mat. Med. 74.—B. S. Barton, Coll. 26.—W. P. CBarton, Veg. Mat. Med. vol. i. PLATE LII. Fig. 1. Euphorbia Ipecacuanha. Fig. 2, 5, 4, 5. Different forms and sizes of the leaf observed in individuals of this 6. Bed variety of the 7. Calyx. Fig. 8. Calyx opened, with five of the stamens 9. A perfect 10. Styles and stigmas magnified. /•//.///. ( ////////>< /<-/ <■?<; //ft/// EUPHORBIA COROLLATA. Large flowering spurge. PLATE LIIL Jln point of stature and the shewy appear-ance of its flowers, this species of Euphorbiadiffers eminently from that described in the lastarticle. In the common features, however, ofthe genus, such as its lactescence, its taste, andits medicinal powers; the consanguinity of thetwo plants evidently appears. I am not awarethat this species has been much known for itsoperative qualities, until within a very recentperiod. The indians were, indeed, acquaintedwith the medicinal properties of more than onespecies of Euphorbia. They doubtless made useof the E. ipecacuanha, and not impossibly of thepresent species also. In Mr. Claytons letter toDr.


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