Inga: linguistic family Aechwa, according to Ortiz 
(26b). 
This reduced group of Indians, now living near Mocoa 
in the Comisaria del Putumayo, is probably a remnant 
of a former Kechwa expansion from the highlands east- 
ward over the slopes of the Andes in southern Colombia. 
These Inga Indians are much given to the use of yajé, 
made normally of Banisteriopsis inebrians or B. Rusby- 
ana, sometimes with non-malpighiaceous admixtures. 
They refer to the narcotic also as ayahuasca, a generalized 
Kechwa name meaning ‘‘vine of the dead.”’ Yayé also 
tinds use amongst the Ingas as a violent purgative. For 
magical purposes, yajé is taken sometimes only by the 
shaman and sometimes by any male member of the tribe 
under the supervision of the shaman (47). 
The Ingas likewise use yoco daily as a stimulant. Coca 
is never chewed by members of this tribe (45). 
Koregwahes: linguistic family T'usano, according to 
Rivet (38), Mason (24a). 
The Koregwahes, like the Sionas, probably came west- 
ward from the Vaupés in pre-Colonial times, but appar- 
ently at a later date. Quite possibly they brought the 
coca habit with them. 
Unlike the Sionas, however, they do not use tobacco, 
but have adopted yoco and yajé. I cannot dare to guess 
from whom they borrowed the use of yaqjé (8), because 
almost all of the tribes of the Putumayo, Amazonas and 
Vaupés use it. 
Witoto: linguistic family Witoto, according to Koch- 
Griinberg (20), Rivet (88), Castellvi (7), Ortiz (26). 
The Witotos are dispersed in several localities of the 
Colombian Comisaria del Amazonas, especially along the 
Karaparana and Igaparand Rivers, and in adjacent parts 
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