VIROLAS (Virola calophylla, V. colophylloidea, and V. theiodora) are among the most recently discovered hallucinogenic plants. These jungle trees of medium size have glossy, dark green leaves with clusters of tiny yellow flowers that emit a pungent aroma. The intoxicating principles are in the blood-red resin yielded by the tree bark, which makes a powerful snuff.
Virola trees are native to the New World tropics. They are members of the nutmeg family, Myristicaceae, which comprises some 300 species of trees in 18 genera. The best known member of the family is Myristica fragrans, an Asiatic tree that is the source of nutmeg and mace.
In Colombia, the species most often used for hallucinogenic purposes are Virola calophylla and V. calophylloidea, whereas in Brazil and Venezuela the Indians prefer V. theiodora, which seems to yield a more potent resin.
AN INTOXICATING SNUFF is prepared from the bark of Virola trees by Indians of the northwestern Amazon and the headwaters of the Orinoco. An anthropologist who observed the Yekwana Indians of Venezuela in their preparation and use of the snuff in 1909 commented:
"Of special interest are cures, during which the witch doctor inhales hakudufha. This is a magical snuff used exclusively by witch doctors and prepared from the bark of a certain tree which, pounded up, is boiled in a small earthenware pot, until all the water has evaporated and a sediment remains at the bottom of the pot.
"This sediment is toasted in the pot over a slight fire and is then finely powdered with the blade of a knife. Then the sorcerer blows a little of the powder through a reed . . . into the air. Next, he snuffs, whilst, with the same reed, he absorbs the powder into each nostril successively.
"The hakudufha obviously has a strong stimulating effect, for immediately the witch doctor begins to sing and yell wildly, all the while pitching the upper part of his body backwards and forwards."
Picture attached is: Strip of bark from Virola tree, showing oozing resin." From golden guide; schultes
Golden Guide: Hallucinogenic Plants - p. 71-80, by R.E. Schultes
erowid.org