66 



298. (23) BUENA HEXANDRA, Polll. 



a. Portion of quilled bark, with periderm. 

 Note. This is the bark described under the name of Nova colorada de 

 Brasil by Guibourt. See Hist, des Drog., t. iii., p. 183. It has a dark 

 inner surface, and the periderm is thick and deeply furrowed ; the taste is 

 nauseous and astringent. 



(24) CASCAEILLA CARUA, Wedd. (False Bed Bark.) 



a. Thick curved pieces. 



Note. This bark is known in Peru and Bolivia under the name of 

 Cargua-cargua grande. It. is similar in appearance to the bark of Buena 

 Bogotensis, but has a paler and more fibrous inner surface. Neither that 

 bark nor this one contains any alkaloid. 



(25) CASCAR'ILLA GLOBIFERA, Pav. 



a. One quilled piece. 



Note. This bark somewhat resembles that of C. micrantha externally, 

 but its inner surface is very 'fibrous. It is labelled Unas de gato. See 

 P. J. [1] , vol. xii., p. 176, no. 32 ; also p. 341. 



(26) CONDAMINEA TiNCTORiA, D. 0. (Paraguatan Bark.) 



a. Large quilled pieces. 



Note. This bark is remarkable for the peculiar deep pink colour of its 

 substance. The periderm is thin and easily removed. In Peru it is 

 known as " socchi." See Hist, des Drag. vol. iii., p. 184 ; P. J. [1] , vol. 

 xii., p. 341. 



(27) CROTON SPECIES. 



a. Thin, wide flat pieces. 



Note. This bark is covered with large woody blunt prickles, which, 

 together with its peculiar taste, appear to ally it rather to the bark of a 

 Zanthoxylum than a Croton. 



(28) GOMPHOSIA CHLORANTHA, Wedd. 



a. Quills. 



Note. This bark much resembles Calisaya quill, and was at one time 

 sold for it. It may be distinguished by the periderm being readily separa- 

 ted into layers, which are of a purplish tinge. It " contains no alkaloid." 

 A mounted microscopical slide of a section of the bark accompanies this 

 specimen. See P. J. [1], vol. xiv., p. 318. It comes from Carabaya. 



(29) LAPLACEA QUINODERMA. Wedd. 



a. Flat or slightly curved pieces. See P. J. 

 Note. This bark at one time came mixed with flat Calisaya. It 

 differs very much from it in appearance, being of a blackish red colour, 

 and having very persistent tough fibres. Its native name is Vichullo vei 

 Chulquisa. It is labelled " scarce " and " interesting under the micro- 

 scope." 



(30) STENOSTOMUM ACUTATUM, D. 0. (Pitoya Bark.) 



a. Long quills. 



Note. This bark was known in England as Pitoya bark, and from it a 

 principle named pitoyine was obtained, a specimen of which is attached 

 to this bark. By Guibourt it is described as Quinquina bicolore. The 

 quills are very long, quite smooth, and brown externally, and black on the 

 inner surface. It cannot possibly be confounded with any cinchona 

 bark. See Hist, des Drog., t. iii., p. 190. 



