EUPHORBIACE.E. 



597 



dose of the powder is from ten grains to half a drachm, but it is more gene- 

 rally prescribed in infusion. 



3. C. pseudo-china, Schlecht. — Young- shoots covered with a dense, brown scurf. 

 Leaves large, cordate-ovate, obtusely acuminate, 3 — 5-nerved, nearly or quite entire, green 

 and smooth above, silvery, and scaly beneath ; petioles scurfy, silvery, half the length of 

 the leaves. Racemes axillary, simple ; flowers monoecious, with 5 sepals, 5 petals, and 

 1 — 15 stamens. 



Schlechtendahl, Linn. v. 84 ; Lindley, Fl. Med.lSQ ; C. cascarilla, Don, 

 Edinb. Phil. Journ. xvi. 368. 



Indigenous to the Terra caliente or warm country of Mexico, and accord- 

 ing to Deppe, furnishes the Quina blanca or Copalchi bark of Xalapa, and 

 in his opinion, the Cascarilla of European commerce. Don also assumed it 

 as certain that it affords this product, and therefore proposed to change the 

 name to C. cascarilla. But it has been satisfactorily shown that Copalchi 

 bark differs in many respects from Cascarilla, though allied to it in its pro- 

 perties. It was supposed at one time, that this bark was derived from C. 

 suberoswn of Humboldt, which is employed in Peru as an aromatic purgative. 

 It should be noticed that another bark is known in South America under the 

 name of Copalchi, and is supposed by Virey and Guibourt to be yielded by 

 Strychnos pseudo-quina. 



4. C. tiglium, Lam. — A 

 middle-sized tree. Young 

 branches terete, smooth, 

 shining, somewhat furrowed 

 towards the extremities. 

 Leaves oval-oblong, acute, 

 3 — 5-nerved at the base, 

 acuminate at the point, with 

 small glandular serratures, 

 and having 2 glands at 

 base, covered, especially 

 when young, with stellate, 

 sparse hairs. Petioles fur- 

 rowed. Racemes terminal, 

 erect. Flowers downy, ste- 

 rile, with a 5-cleft calyx, 5 

 lanceolate, woolly petals, and 

 15 distinct stamens ; fertile, 

 with a 5-cleft, permanent 

 calyx, and long and bifid 

 styles. The capsules are 

 oblong, obtusely triangular, 

 about the size of a hazel-nut ; 

 3-celled, each with a solitary 

 seed. 



Lamarck, Encyclop. 

 ii. 208 ; Roxburgh, FL 

 Ind. iii. 682 ; Stephen- 

 son and Churchill, i. 4 ; 

 Lindley, Fl. Med. 181 ; 

 C. jamalgota, Hamilton, 

 Trans. Linn. Soc. xiv. 

 258. 



A native of India, and 

 cultivated in some parts 

 of the West Indies. It 



Fig. 262. 



C. tiglium. 



