This book is a comprehensive study of the native American species of the genus Prunus, commonly known as plums and cherries. The author, a botanist, provides a detailed overview of the history, distribution, variation, and development of these species. The book begins with a look at the early history of American plums, including references to their observation and use by European explorers and settlers. The author then discusses the horticultural development of native plums and cherries, tracing their journey from wild fruits to cultivated varieties. The book also includes taxonomic treatments of each species, with detailed descriptions, illustrations, and distribution maps. This reference will be of interest to botanists, horticulturists, and anyone interested in the history and diversity of American plants.