160 THE USES OF PLANTS. 



pallida, Kunth, being * Algarobilla negro,' and P. 

 Algarobo being 'Algarobilla bianco.' 50 tons were 

 imported in 1880, 1 60 in 1881 (H. R. Proctor, ' Text- 

 book of Tanning/ p. 23). 



Divi-Divi, the pods of Ccesalpinia coriaria, Willd., 

 of Central America, has been longer in general use.* 



BETEL-NUT (Areca Catechu, L.) is recommended 

 by Mr. Christy. 



MYROBALANS were only introduced about 1840, 

 but we now import seven or eight thousand tons from 

 India annually. The four varieties are the Chebulic 

 (Terminalia C/iebula, Retz.), Citrine (T. citrina, Roxb.), 

 Beleric or Bastard ( T. belerica, Roxb.), and the Emblic 

 (Emblica officinalis Gaertn.). They yield valuable 

 black and yellow dyes. 



VALONIA, the 'cups' of Quercus ALgilops, L., together 

 with 'Cameta' and 'Cametina,' its young acorns, have 

 long been imported from the Levant. In addition to 

 the long-known galls of Q. infectoria, Oliv., in 1 847 the 

 first importations were made of those produced by 

 Aphis chinensis on Rhus succedanea, L., and R. semialata, 

 Murray, of Northern India, China, and Japan, known 

 as ' Wu-pu-tze ' or Chinese or Japanese galls, of which 

 we imported, mainly for exportation, in 1880, 51,083 

 cwt. at 503. to 703. per cwt. They yield 70 per cent, 

 of tannin. 



Mr. Christy also recommends the Galls of 

 Tamarix. 



SUMACH, the leaves and twigs of Rhus Coriaria, L., 

 R. typhina, L., and (Venetian) R. Cotinus, L., is an 

 old and valued material. 



* * Pharm. Journ.,' v (1846), p. 443. 



