More recently, Banisteriopsis inebrians has been re- 
ported as the source of a narcotic in the same region. 
Cuatrecasas 10598, collected near Puerto Ospina, appar- 
ently represents this species and is cultivated under the 
name yagé by the Indians as the ‘‘principal ingredient”’ 
of the narcotic drink, the unboiled stem (‘‘tallo crudo’’) 
being employed. Likewise, Cuatrecasas 11061 was taken 
from a plant cultivated by the Kofiin Indians of the 
nearby Rio Sucumbios. In 1942, I found the same In- 
dians using cultivated Banisteriopsis inebrians, called oo- 
Jd in the Kofan language, as the source of a narcotic 
drink at Puerto Ospina and on the Sucumbios, and I ex- 
perimented in both localities with the intoxicant prepared 
from vines from which the collections Schultes 3452 (from 
a cultivated plant) and 3474 (from a wild liana) were 
made. The collection Schultes 3346, likewise apparently 
referable to Banisteriopsis inebrians, was taken from a 
vine pointed out by the Ingano Indians of Puerto Limoén 
on the nearby Rio Caquetaé as the plant from which, 
without admixture, they prepare their yajé. From Mocoa, 
capital town of the Putumayo and centre of the Inganos, 
still other collections of Banisteriopsis inebrians were 
made (Schultes & Smith 3037; Schultes & Cabrera 19113) 
with the field annotations that they were called ayahuasca 
or yajé and bejuco de oro (‘‘golden vine’’), that they were 
narcotic and that the leaves were used as a strong pur- 
gative. I have found Banisteriopsis inebrians to be used 
with and without the admixture of any other species of 
the genus, but decoctions of this species had marked nar- 
cotic effects each time I drank them, whether or not any 
admixtures had been used. 
What is probably Banisteriopsis quitensis was reported 
by Klug (Klug 1934) as yagé cultivado (58) in the Um- 
bria region. Later, Cuatrecasas (Cuatrecasas 10599) 
noted that the Kofiins near Puerto Ospina grow this spe- 
[ 36 | 
