Portland, OR: Dioscorides Press, 1990.
Signed by both authors with inscription by Schultes. First edition. 484 pp. Bluish green cloth with gilt spine lettering. Near Fine with slightly bumped corners in Very Good dust jacket with sunned spine, two small tears at head and tail, lightly worn at edges. Warmly inscribed to banker Arthur Altschul by Schultes at top of title page, with his and Ruffauf's signatures beneath that. An uncommon signed copy of an in-depth Amazonian botanical book by the father of modern ethnobotany. Item #180707003