Mets-k wai Methysticodendron Amesianum Colombia 
borrachera R. E. Schultes 
Tonga, Datura suaveolens Humboldt Colombia, Ecuador, Peru 
Borrachera & Bonpland ex Willdenow 
Datura candida (Pers. ) Safford 
Datura arborea Linnaeus 
Datura sanguinea Ruiz & Pavoén 
Datura dolichocarpa (Lagerheim) 
Safford 
Tobacco Nicotiana Tabacum Linnaeus Widespread (16) 
Yoco Paullinia Yoco R.E.Schultes Colombia, Ecuador, Peru 
& Killip 
ILI. 
DIsTRIBUTION ACCORDING TO LINGUISTIC GROUPS 
In view of the lack of any adequate cultural classifica- 
tion of the Indian tribes in Colombia, I am considering 
the various groups in accord with a linguistic classifica- 
tion, realizing, at the same time, that this has really very 
little significance insofar as the use of narcotics and stim- 
ulants is concerned. I am also discussing the tribes in 
order from north to south along the Andes and Pacific 
coastal regions and then across the Amazon valley to the 
llanos or Orinoco basin. 
Guajiro: linguistic family Arawak, according to 
Rivet (38). 
The Guajiros inhabit the desert area of the Guajira 
Peninsula in northeastern Colombia. They employ a 
tobacco-paste which they chew, especially for magical 
purposes. The piache (witch-doctor) uses a piece of 
manilla, tobacco-paste brought in from Rioacha in the 
Departamento del Magdalena, Colombia, or from Mara- 
caibo in Venezuela. If manil/la be unavailable, leaves of 
macuira, a plant similar to tobacco, are chewed to bring 
about a state of trance for divination (28). 
At the present time, the cigars and cigarettes of the 
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