EXPLANATION OF THE ILLUSTRATION 
Prare VIL. Banisrertopsts Ruspyana (Ndz. ) Morton 
(Schultes & Cabrera 19112) growing in secondary 
forest at Mocoa, Comisaria del Putumayo, Colom- 
bia. The leaves of this plant, which is called chag- 
ropanga, are added to the rasped bark of Banister- 
iopsis inebrians to prepare the yajé drink in the 
Mocoa area. 
Photograph by Ricuarp Evans Senurres 
