20 



€ASE No. 52. Spjetlum Root (Lewisia rediviva^ Pursh). 

 8. The roots are collected as food by the Indians of the 

 Upper Oregon territory. They retain their vitality for a 

 long time. 



Tamarix Order {Tamariscineae). Bushes or small 

 trees, widely distributed. Several species produce galls, 

 notably Tamarix articulata^ Vahl. Abundant in Sind 

 and the Punjab, and distributed in Baluchistan and 

 westward to Egypt and South Africa. T. gallica^ L., is 

 common in India, Burma, and Ceylon, also Europe and 

 Tropical Africa. Tamarix galls are used in medicine 

 as an astringent, and are also employed for dyeing. 



Tutsan Order, or St. John's Worts (Hypericineae), 

 Plants with opposite undivided leaves, often dotted with 

 minute oil glands, easily seen when held against the 

 light. A few are used in medicine, as Hypericiirn 

 perforatum, L. 



Gamboge Order {Guttiferae). Tropical trees and 

 shrubs, with entire, opposite, smooth, and rather thick 

 leaves. Many of the representatives of the order afford 

 valuable oil-seeds and a yellow, purgative, resinous juice 

 which in some Eastern species is collected as Gamboge, 

 the well-known pigment and medicine. 



No. 53. Karamani Resin {Symplmnia glohuUfera, 

 L.). A tree of British Guiana. The resin is chiefly collected 

 by the negroes from among the roots of old trees. It is 

 used in medicine and as a cement for fixing arrow- and 

 spear-heads. In Jamaica it is called Hog Gum. 



No. 54. Fruit of the Butter or Tallow Tree of 

 Sierra Leone (Pentadesma hutyracea, Sabine). When 

 cut these fruits yield a greasy yellow juice which becomes 

 solid on exposure to the air. It is mixed by the negroes 

 with their food. 



No. 55. Portion of trunk of the " TONG RONG " or 

 Gamboge Tree of Siam {Garcinia Hanhuryi, Hook, f.), 

 spirally gashed to cause the resin to flow into joints of 

 Bamboo placed to receive it. Note also samples of Siam 

 Gamboge which forms the bulk of the Gamboge of 

 commerce. 



