172 ERYTHROXYLEjE — PORTULACACEjE. 



" Erythroxylon Coca is a plant much used by the miners of Peru for its 

 remarkable power in stimulating the nervous system, in which respect 

 it much resembles opium. Its leaves are chewed with a small mixture 

 of finely powdered chalk. No eflPects that have been ascribed to the immo- 

 derate use of opium are exceeded by what seems the consequence of chew- 

 ing the Coca-leaf." (Lindl.) 

 Erythroxylon, L. {DC.pr. \,p. 573.) 



1. monogynum, Roxb. (Corom. \,t. 88; fl. ind. 1,p. 449. — E. sideroxy- 



lo'ides, Roxb. fl. ind. 1. c. excl. No. 2, — non Lam Sethia indica, DC. 



pr. 1, p. 576 ;— W. and A. pr. 1, p. 106 ;— Wight ill. 1, t. 48.) b Cir- 

 cars, Mysore, Courtallum. Throughout the Carnatic. Fl. small, 

 greenish, R. and C. S. ; fr. C. S. 



2. hypericifolium. Lam. {DC pr. 1, p. 573.) 5 Mauritius, where it is 

 called Bois d'huile, Bois de Dames. Fl. small, whitish, R. S. 



3. longifolium. Lam. {DC.pr. 1, p. 574.) 5 Madagascar, Bourbon. In- 

 troduced into H. C. G. Fl. ? 



4. laurifoliiim. Lam. (DC. pr. 1, p. 575; — Roxb. fl. ind. 2, jo. 449.) 5 

 Mauritius, where it is called Bois de Ronde or Bois de Rongle. Intro- 

 duced into H. C. G. Fl. ? 



* E. havanense, Swz. b Jamaica. — E. buxifolium, Lam. b Madagascar. — E. 

 sideroxylo'ides. Lam. 5 Bourbon. — E. macrophylbim, Cav. b Cayenne. — 

 E. squamatum, Vahl. b Cayenne. — E. mexicanum, H. B. and Kth. b 

 Mexico. — E. acuminatum, (Sethia accuminata, Am.) Ceylon. — E. lan- 

 ceolatum, (Sethia lanceolata, Wight,) Courtallum. — E. obtusifolium 

 (Sethia obtusifolia, Wight.) Courtallum. — E. Wightii, (Sethia ery- 

 throxyloides, Wight.) Courtallum. 



ORDER LXXXIX.— PORTULACACE^, Lindl. Syst. 1, p. 123. 



THE PURSLANE TRIBE. 



Succulent herbs, sometimes shrubs or under-shubs, referred by Lindl. to 

 1 1 genera. Of the species according to DC. pr., Spreng syst., B. M. and 

 B. Reg. 43 are from S. America, Mexico and the W. Indies ; 8 from N. 

 America ; 4 from Arabia ; 4 from Siberia ; 2 from Europe ; 1 from Guinea ; 

 I from the Society Islands; and 1 from St. George's Island. Twenty species 

 inhabit S. Africa, {Harvey,) and 13 the E. Indies. Of the latter, 7 belong 

 to Portulaca ; 5 to Trianthema ; and 1 to Talinum ; — 3, however, are 

 common to other parts of the world. They are all found in the Peninsula 

 of India, Java, and Bengal, with the exception of 2, discovered at Monghir 

 and Delhi. Tahnum Strictum, Wall, Cat. is perhaps not different from 

 T. cuneifolium, Willd. 



