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Many tribes in South America make a hallucinogenic snuff from the seeds of Anadenanthera peregrina var. peregrina, a tree of savannas and plains. The ground-up seeds contain tryptamines that induce shamanic visions, such as flying, death and rebirth, and transformations into animals. This set was collected by Richard Spruce at the Cataracts of Maypures, Venezuela, in 1855.

The roasted seeds (seen here in their pods) are ground on the mortar and pestle (A). The ground snuff (niopo) is kept in a tiger's bone (B), closed at one end with pitch, and at the other with a cork. The instrument for taking the snuff (C) is made of birds' bones. Two tubes end upwards in little black balls which are applied to the nostrils, while the single tube on which they unite at the lower end is dipped into the snuff.

The botanist Richard Spruce (1817-93) was one of the great plant collectors. He collected thousands of herbarium specimens and 300 artefacts during 15 years in the Amazon. This snuff set is on display in the Plants+People exhibition at Kew Gardens.