The main purpose of this book is to provide an aid to future paleo-palynologic investigations in southern South America, whether they involve paleoecologic, paleoclimatic, or archaeologic problems...Provides photomicrographs, morphologic description, and keys for 374 pollen types...Divides keys into four plant geographic regions to facilitate palynologic work in other similar areas...Includes indexes to plant families, plant species, and common names.