60 



298. (9) CINCHONA LUCOM.E FOLIA, continued. 



longitudinally cracked soft periderm ; they form the White Crown bark of 

 Pereira. See Mat. Med., 3rd edition, vol. ii., pt. ii., p. 1638. According 

 to Howard it yields 



Quinine 0-68 



Cinchonidine ... ... ... ... 0'63 



Cinchonine . 0'31 



1-62 

 (10) CINCHONA MICRANTHA, B. et P. 



Var. a. ROTUNDIFOLIA, Wedd. 



a. Very large quills. 



Note. This is the " Cascarilla motosolo of Carabaya, and the Quepo 

 Cascarilla of Bolivia " (the latter name is also applied to the bark of C. 

 amygdalifolia Wedd). It is a very scarce and peculiar bark. 



b. Flat pieces. 



Note. This is the Bolivian sort, and contains quinine. 

 Var. /3. OBLONGIFOLIA, Wedd. 



a. Quills. 



Note. This is the specimen described in P. J. [1], vol. xiii., p. 672. 



No. 5. It is " a kind of Cascarilla provinciana." Analysed by Howard it 



contained 



Quinidine and uncrystallized quinine .. 1-43 

 Cinchonine 1'29 



2-72 



b. Flat pieces. {Coarse Grey Baric, Peruvian Calisaya.) 

 Note. This is the " Peruvian sort." See P. J. [1] , vol. xii., p. 174, 



No. 17; also, Per. Mat. Med. t vol. ii., pt. ii., p. 99; Wedd, Nat. Hist. 

 Quinq., p. 53, tab. xiv., xv. 



C. Quills. 



Note. This specimen is said by Howard to be identical with one in 

 the British Museum, in Ruiz and Pavon's collection, labelled la, Esp., 

 No.. 5, Cascarilla Pata de Gallinazo, and with one of Poppig's in this 

 museum. See P. J. [1J , vol. xiii., p. 672, No. 6. Analysed by Howard, 

 this specimen yielded , 



Quinidine and uncrystallizable quinine ... 1*00 

 Cinchonidine ... ... ... ... 1'09 



2-09 



The bark of C. micrantha may be known by its rusty coat, with a 

 thin silvery layer underneath it, thus resembling the bark of C. chahuar- 

 guera, from which, however, it differs in having very few transverse 

 cracks. The taste is earthy at first, and then bitter, with a peculiar 

 sweetness. The Bolivian sort is richer in quinine than the Peruvian. 

 Per. Mat. Med., vol. ii., pt. ii., p. 92. " A tree of the Bolivian sort is 

 growing in Mr. Howard's conservatory. It is now (1875) 8 feet in height, 

 and differs much in the purple under side of the leaf, and the red veins 

 from the Peruvian sort." (J. E. H.) For fig. of the quills, see Del. et 

 Bouch. Quinolog., pi. v. 



