Chemical examination of the tuberous root of Ipomoea horsfalliae, Hooker / by Frederick B. Power and Harold Rogerson.

  • Power, Frederick B. (Frederick Belding), 1853-1927.
Date:
[1910?]
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Chemical examination of the tuberous root of Ipomoea horsfalliae, Hooker / 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 froh the American Journal of Pharmacy, August, 1910. CHEMICAL EXAMINATION OF THE TUBEROUS ROOT OF IPOMCEA HORSFALLLE, HOOKER. By Frederick B. Power and Harold Rogerson. A Contribution from the Wellcome Chemical Research Laboratories, London. In the Spring of 1909 one of us was kindly presented by Mr. E. M. Holmes, F.L.S., Curator of the Museum of the Pharmaceu- tical Society of Great Britain, with a large tuberous root which had been received from the West Indies, and was evidently the product of a species of Ipomcca. It had been sent to Mr. Holmes by Messrs. Westmacott & Son, of Manchester, England, who had likewise favored him with the following information concerning it. “ It grows wild, and is not cultivated for any purpose. This specimen was gathered in the woods of Maypen, Clarendon Dis- trict, Jamaica, by our client, Col. Barlow, of Bury, who states that it is used for starch making, although it produces a yellow product, and that it is also used for food in some instances.” The root in question was a very large one, and, as it could not conveniently be preserved in its entire, fresh state, it was thought that it might be utilized for a chemical examination, so far at least as the amount of material would permit. Some addi- tional interest was imparted to the subject by the fact that the present authors had recently made a complete chemical study of the stems of Ipomcea purpurea, Roth,1 and also of the official jalap,2 from Ipomcca Purga, Hayne (Exogonium Purga, Benth). In order to ascertain the botanical source of the root referred: 1 This Journal, 1908, 80, pp. 251-286. * Journ. Amer. Chevi. Soc., 1910, 32, pp. 80-113. (355)