Adventures happen only to those incapable of planning an expedition.
Richard Evans Schultes (1915 - 2001) may be considered the father of modern Ethnobotany.
He extensively studied the native uses of Entheogenic or hallucinogenic plants, especially in the Amazon.
His book The Plants of the Gods: Their Sacred, Healing, and Hallucinogenic Powers
,
co-authored with chemist Albert Hofmann, the discoverer of Entheogenic, is considered his greatest popular work.
He made essential contributions to the concept of a Biocentric Culture (see Vital Unconscious and Biocentric Principle).
Albert Hofmann: prominent Swiss scientist and best known as the discoverer of LSD.
Terence McKenna: writer, philosopher, and Ethnobotanist, noted for his many speculations on the use of psychedelic, plant-based hallucinogens, and subjects ranging from Hypnosis, Shamanism, the development of human consciousness, and novelty theory.
Wikipedia: http://en.wikipedia.org/wiki/Richard_Schultes
Biography: http://www.harvardsquarelibrary.org/unitarians/schultes.html
Ethnobotony: http://en.wikipedia.org/wiki/Ethnobotany
Interview, Richard Schultes - The Father of Modern Ethnobiology
, Academy of
Achievement, 1990:
http://www.achievement.org/autodoc/printmember/sch3int-1
Albert Hofmann and Richard Schultes, Plant of the Gods
, excerpt:
http://users.lycaeum.org/~sputnik/Drugs/THC/nectar.html