64 



298. (17) CINCHONA PDBESCENS, Vahl. (Arica, or Cusco 

 Var. a . PELLETERIANA, Wedd. 



a. Flat pieces, without periderm. 



Note. This bark is called in Carabaya, cascarilla amarilla, and in 

 Cuzco, carua carua. It is now a " scarce" bark " 1873." It is from this 

 bark that aricine is obtained. See P. J. [1] , vol. ix.. p. 268. Pelletier's 

 specimen in this museum is not this variety, but typical C. pubescens, 

 fide J. E. H. 



Var. ft. PDEPUREA, Wedd. ( White CaKsaya Bark.) 

 a. Long, rather large quills. 



Note. These quills are very hard, and have a thin dirty white epider- 

 mis, which is longitudinally wrinkled but not transversely cracked, and 

 has a few scattered warts. " This species needs better definition." The 

 quills are well figured in Wedd. Nat. Hist. Quinq., tab. 29., f. 19-23. 



6. In flat or slightly curved pieces. 



Note. This specimen was imported into Liverpool in May, 1852. It 

 bears the Pinta brand. It resembles the bark of C.ovata externally, but 

 has a much coarser grain. The taste resembles that of pale bark, and the 

 bitterness is quickly developed but is not very persistent. According to 

 Howard's analysis it yielded, 



Quinidine, chiefly crystallized 0-91 



Cinchonine ... ... ... ... ... 0-43 



1-34 



In Huanuco this bark is called Cascarilla bobo de hojas moradas. 

 c. In quills. " C. pubescens ?" 



Note. This specimen is the one referred to in P. J. [1] , vol. xiii., 

 p. 672, No. 7. It " resembles a specimen in this museum named 

 Huamalies by Batka," and also a "specimen in the British Museum, 

 labelled Sp. nova de Jaen de Loxa." It is "not the Huamalies bark of 

 Pereira." (J. E. H.) See C. officinalis, var. /3, and the collection of 

 barks examined by Batka. 



. d. Thin quills. 



Note. This specimen is labelled " Marcapata bark? C. purpurea." In 

 appearance it resembles fig. 1, 2, on pi. x., Goebelund Kunze, but is not so 

 much cracked as the Huamalies bark there represented. 



(18) CINCHONA ROSULENTA, Howard, 

 a. Curved or quilled pieces. 



Note. " This is a cinchonidine bark which now (1873) comes abundantly 

 into commerce. It is the red bark of the district." The cinchonidine 

 here spoken of by Howard is called Quinidine in Pharmacographia, p. 321. 

 This bark is the Quinquina CarthajSne ros6 d'Ocana of Del. et Bouch. 

 Quin. p. 37, and is figured on pi. xvii. It resembles the bark of lanci- 

 folia, but is usually in larger and flatter pieces, and is deeply but 

 irregularly fissured longitudinally. It is hard and fibrous, but has a 

 darker red colour than the bark of C. lancifolia. The bitter taste is soon 

 developed, but is without astringency. 



