5. The identification of yajé as a species of Aristolo- 
chia is definitely without foundation. 
6. Prestonia amazonica (aemadictyon amazonicum) 
of the Apocynaceae has frequently been named as the 
source of yaqjyé and caapi. There is little or no reliable 
evidence that this vine is ever employed, at least as the 
prime ingredient, in preparing the narcotic drink. 
7. The species of Banisteriopsis and Tetrapterys are 
known to be employed alone and to have narcotic prop- 
erties when thus used. Two species of Banisteriopsis may 
also occasionally be utilized together. 
8. Non-malpighiaceous plants are known occasionally, 
but apparently not frequently, to be added as admixtures 
together with Banisteriopsis in some areas. Prestonia 
amazonica has been reported to be thus used in Brazil. 
The solanaceous Datura and the amaranthaceous A/fer- 
nanthera Lehmanii have been indicated as an added 
ingredient in Colombia. The apocynaceous Malouetia 
Tamaquarina may enter into the preparation of the nar- 
cotic in the Vaupés of Colombia, but this report could 
not be verified. Several unidentified plants have been 
mentioned as admixtures in Bolivia, Colombia and Peru. 
[ 42 ] 
