"The first edition, published in 1941, was based on Goodspeed's first two expeditions to the central Andes, whereas the present edition, reporting on four additional expeditions, has a greatly enlarged horizon extending from Colombia in the north to Cape Horn in the south, west to the Juan Fernandez Islands, and east into Paraguay, Uruguay, and the Argentine, a truly extraordinary range for this kind of meticulous plant exploration." -- Richard Evans Schultes, Economic botany, vol. 17 no. 1