CONDURANGO CONTRAYERVA. 79 



crushed root in i quart of water or milk. Dose, a wine- 

 glassful. The leaves are preferably taken as an infusion 

 prepared in the usual manner. 



Preparation Fluid extract : Dose, \-i drachms. 



Distinctive character Root brownish black, deeply 

 wrinkled, in pieces 3-6 inches long and \-\ inch thick, 

 greyish and horny internally. Fracture short. Trans- 

 verse section showing a thick bark, short wood bundles 

 and broad medullary rays. Taste, sweetish, mucilaginous, 

 and faintly astringent. Odour, none. 



CONDURANGO. Marsdenla Cundurango, Nichols. 



N.O. Asclcpiadacece. 

 Syn. Gonolobus Condurango (Triana). 



Part used Bark. 



Action Alterative, stomachic, aromatic. 



Preparation Fluid extract: Dose, ^-i drachm. 



Distinctive character In quilled pieces 2-4 inches 

 long, about inch in diameter, and T VJ inch thick. 

 Outer surface brownish grey, with scattered warts of the 

 same colour. Transverse fracture yellowish white, 

 granular, with scattered fine silky fibres. Taste, bitter 

 and somewhat acrid, and faintly aromatic. 



CONTRAYERVA. Dorstenia Contrajerva, Linn. 



N.O. Urticacece. 

 Syn. Dorstenia, Houstoni, Linn. 



Contrayerva is also obtained from D. Braziliensis, Lam., 

 D. Drakena, Linn., D. opifera, Fisch., and D. tubicina, 

 R. and P. 



Part used Root. 



Action Diaphoretic, stimulant. These properties 

 make it a good remedy in typhus fever, dysentery, 

 and skin diseases. The powder is taken in doses of 30 



