72 VERBENACE^. 



On analysis the following results were obtained : 



Petroleum etter extract ...... 1'80 per cent. 



Ether ,^ -21 



Alcoholic ,', 4-2741 T, 



Aqueous ,^ ... 19-560 „ „ 



The petroleum ether extract consisted of a yellow viscid oil, 

 with slight siccative properties. On standing, white grains 

 separated, which were non-crystalline when examined micros- 

 copically. In alcohol the extract was partly soluble: no 

 alkaloid was present. The ether extract was yellowish-wlilte, 

 and contained a trace of oil ; it gave no reaction with ferric 

 salts : in addition to resins a trace of benzoic acid was present. 



The alcoholic extract -was yellow and brittle : with water a 

 turbid mixture was obtained, which had a bitter taste. lu 



princ 



The aqueous extract was sweetish and slightly bitter, and 



Fehlinff 



The fruit contained butyric acid, with a trace of tartaric acid, 

 a trace of astringent matter giving a greenish coloration with 

 ferric chloride, an alkaloid, and a white principle, non-crys- 

 talHne, and neutral, with resin and saccharine matter. 



The alkaloids present in the fruit and in the root appear to 

 he identical. The amount present in each case was very small, 

 not exceeding a trace. 



Several species of GmeKna are sometimes used as demulcents. 



G. asiatica affords the Radix DeiparcB or Rais madre de 

 ^.0. of the Portuguese. Rumphius (Mart. Amh., i., p. 129) 

 lelates that formerly its roots were dug only on St. Mary's 

 day, and that only those roots which turned towards the north 



an 



every poison 



# 



disease in 



t^it^"; ^ '"'*' ^"^ ^I'shtly bitter, astringent, and 

 w-omat c Loureiro say.:_'< Talent in dolnrih.,« „,t;o„l„nira, 



phoata. ^Flor. Cochm-Ohi... ii., p. 376.) Tbe Tamil nara« 



