522 VEGETABLE DRUGS 



may be given as a stomachic and carminative in digestive 

 disorders with foul-smelling faecal evacuations. 



AENica; Ploees. Arnica Flowers. 



Synonym. — Fleurs d'arnique, Fr.; wohlverleihbliithen, 

 arnikabliithen, G. 



The flower heads of Arnica montana Linne (nat. ord. 

 Compositse). 



Habitat. — Mountainous regions of Europe and Northern 

 Asia. 



Descri2Jtioji. — Heads about 3 Cm. broad ; depressed- 

 roundish, consisting of a scaly involucre in two rows, and a 

 small, nearly flat, hairy receptacle, bearing about sixteen 

 yellow, strap-shaped, ten-nerved, ray-florets, and numerous 

 yellow, five-toothed, tubular disk-florets having slender, 

 spindle-shaped achenes crowned by a hairy pappus. Odor 

 feeble, aromatic; taste bitter and acrid. 



Constituents. — 1, an ethereal oil ; 2, an amorphous, yellow, 

 acrid, bitter principle, arnicin ; 3, resins ; 4, tannic acid ; 5, 

 caprylic and capronic acids. 



Dose.—R & C, 3 ss.-i. (15.-30.) ; D., gr.x.-xx. (.6-1.3). 



PEEPARATION. 



Tinctura Arniem. Tincture of Arnica. (U. S. P.) 

 Made by percolation of arnica flowers, 200, with diluted alcohol to 

 make 1000. 



Dose.— H. & C, J i. (30.) ; D., ttv.xv.-xI. (1.-2.6). 



AENiciE Radix. Arnica Root. 



Synonym. — Arnicas rhizoma, B.P. ; racine d'arnique, Fr.; 

 arnikawurzel, G. 



The rhizome and roots of Arnica montana Linne (nat. 

 ord. Compositse). 



Description.— ■'Rhizome about 5 Cm. long, and 3 or 4 Mm. 

 thick ; externally brown, rough from leaf scars ; internally 

 whitish, with a rather thick bark containing a circle of resin 



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