Catalogue of the collections / Comp. by E.M. Holmes.

  • Pharmaceutical Society of Great Britain. Museum
Date:
1878
Catalogue details

Licence: Public Domain Mark

Credit: Catalogue of the collections / Comp. by E.M. Holmes. Source: Wellcome Collection.

Provider: This material has been provided by The University of Leeds Library. The original may be consulted at The University of Leeds Library.

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    03 298. (13) Cinchona ovata, continued. b. Long quills. (Cascarilla pallida.) Note.—This specimen resembles in appearance the quills of 0. Mutisii and C. pubescens; but the periderm when exfoliated in C. ovata shows a dark surface underneath, and the bark of C. pubescens has a much coarser grain than any other cinchona bark. It does not split readily like the bark of C. Mutisii. c. Large quills. Note.— This specimen resembles C. ovata of Weddell, but not of Pavon or Howard. Var. /3. erythroderma, Wedd. a. Flat pieces. Note.—This bark is very scarce and peculiar. It somewhat resem- bles Calisaya bark, but is much darker externally. Cascarilla zamba morada, of Carabaya. The taste is very bitter and astringent. It is a poor bark. See Per. Mat. Med., vol. ii., pt. ii., p. 92. (14) Cinchona Palton, Pav. (West coast Garthagena Bark.) a. Thick curved pieces. Note.—This bark is one of the fibrous barks, resembling in general appearance that of C. lancifolia, but is usually more loosely fibrous, has a redder tinge than that bark; and is also often pitted with numerous depressions, about the size of swan shot, upon its surface. It is much used in the manufacture of quinine. See Pharmacographia, p. 318. Ac- cording to Howard, Palton bark yields— Cinchonidine ... ... ... ... 1-34 Quinine ... ... ... ... ... 0-71 2-05 '' The proportion of quinine is sometimes much larger than that here given. (J. E. H.) (15) Cinchona Peruviana, How. (Fine Grey Bark.) a. Quills. Note.—For a description of this bark see Per. Mat. Med., 3rd edition, vol. ii., pt. ii., p. 1633 ; and for fig. Goebel und Kunze, taf. vii., fig. 1-4. It is nearly allied to the bark of C. nitida and micrantha, and with them forms the Lima or Huanuco bark, which is now chiefly used on the Continent. (16) Cinchona Pitayensis, Wedd. (Pitaya Bark.) a. Large quills. Note.—This specimen is fine Pitaya bark, probably some of the first imported. See Howard, Quinol. E. I. Plantat., p. 89, and pi. xii. b. Large quills ; from the Pitaya district. c. Plat pieces, with a portion of the periderm remaining. Note.—Specimen c is the Pitaya roja, or red Pitaya bark. Pitaya bark is readily distinguishable from other barks by occurring in very large heavy quills of a dull brown colour, with a thick, corky, dirty white periderm. It does not taste bitter for some time, but is then per- sistently so. It is a very valuable bark, and is the chief source of quini- dine. See P. J. [1], vol. xiv., p. 166; [2], vol. vi., p. 48. For fig. of bark see Dei. et Bouch. Quia., pi. xii. and p. 34.