Chemical examination of Ipomoea purpurea / by Frederick B. Power and Harold Rogerson.
- Frederick Belding Power
- Date:
- [1908]
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Chemical examination of Ipomoea purpurea / by Frederick B. Power and Harold Rogerson. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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![Reprinted from the American Journal of Pharmacy, June, 1908. \-^- ■ V' i • , ■ W J ' / <:S'/ CHEMICAL examinationt)F IPOMCEA PURPUREA. By Frederick B. Power and Haroed Rogerson. A Contribution from the Wellcome Chemical Research I/aboratories, London. Ipomoza purp^lrea, Roth (syn. Ipoinoea congesta, R. Br., Convol- vulus purpureus, Linne, Pharbitis hispida, Choisy), Earn. Convolvu- lacecB, is indigenous to the tropical regions of both hemispheres. It is largely cultivated in temperate climates on account of the beauty of its flowers, being known as the common Morning Glory (com. pare Gray’s “ Manual of Botany,” sixth edition, p. 369]^ The above-mentioned plant was brought to the notice of Messrs. Burroughs, Wellcome & Co., London, a few years ago by Mr. J. Medley Wood, A.L.S., Director of the Natal Botanic Gardens, Dur- ban, South Africa, and to the kindness of Mr. Wood we are in- debted for the material employed in this investigation, which was specially collected under his supervision for the purpose. The interest pertaining to this subject depends upon the fact that the stems and roots of the respective plant, called by the natives of South Africa “ i-Jalapa,” are used by them as an aperient medi- cine, and are believed to be as valuable for this purpose as true jalap. It is, however, well known that among the 300-400 species of the genus Ipomoea^ which are distributed throughout tropical and temperate countries, there are many which possess purgative prop- erties similar to those of jalap, and a number of these plants, or the resins obtained from them, have in fact been employed to some extent medicinally (compare “ The National Standard Dispensa- tory,” p. 836; “United States Dispensatory,” nineteenth edition, p. 675 ; “ Pharmacographia Indica,” Vol. II, pp. 527 et seq,),](https://iiif.wellcomecollection.org/image/b22425172_0005.jp2/full/800%2C/0/default.jpg)
