The Río Mayo region of northwestern Mexico is a major geographic area whose natural history remains poorly known to outsiders. Lying in a region where desert and tropical, northern and southern, and continental and coastal species converge, it boasts an abundance of flora first documented by Howard Scott Gentry in 1942 in a book now widely regarded as a classic of botanical literature. This new book updates and amends Gentry's Río Mayo Plants. Undertaken with Gentry's support and participation before his death in 1993, it reproduces the original text, which appears here with annotations, and contains information on over 2,800 taxa—more than twice the 1,200 species first described by Gentry. The annotated list of plants includes information on distribution, habitat, appearance, common names, and indigenous uses. A new introduction provides historical background and a review of geography and vegetation. It also describes changes to the land and river wrought by agricultural development, expanded grazing, and lumbering. Throughout the text, the authors have endeavored to provide information on Río Mayo vegetation while emphasizing local knowledge and use of plants, to preserve Gentry's field-oriented focus, and to present botanical information with Gentry's exuberance and style. Río Mayo Plants has long stood as a book that displays a scientist's love of the English language, his fondness for native peoples, and his eye for beauty in nature. This updating of that work fills a gap in the botanical literature of this portion of North America and will be useful not only for botanists but also for biogeographers, taxonomists, land managers, and conservationists.

Common understandings drawn from biblical references, literature, and art portray deserts as barren places that are far from God and spiritual sustenance. In our own time, attention focuses on the rigors of climate change in arid lands and the perils of the desert in the northern Mexican borderlands for migrants seeking shelter and a new life. Bountiful Deserts foregrounds the knowledge of Indigenous peoples in the arid lands of northwestern Mexico, for whom the desert was anything but barren or empty. Instead, they nurtured and harvested the desert as a bountiful and sacred space. Drawing together historical texts and oral testimonies, archaeology, and natural history, author Cynthia Radding develops the relationships between people and plants and the ways that Indigenous people sustained their worlds before European contact through the changes set in motion by Spanish encounters, highlighting the long process of colonial conflicts and adaptations over more than two centuries. This work reveals the spiritual power of deserts by weaving together the cultural practices of historical peoples and contemporary living communities, centered especially on the Yaqui/Yoeme and Mayo/Yoreme. Radding uses the tools of history, anthropology, geography, and ecology to paint an expansive picture of Indigenous worlds before and during colonial encounters. She re-creates the Indigenous worlds in both their spiritual and material realms, bringing together the analytical dimension of scientific research and the wisdom of oral traditions in its exploration of different kinds of knowledge about the natural world. Published in cooperation with the William P. Clements Center for Southwest Studies, Southern Methodist University

The definitive treatment of the trees and tree-like plants of Sonora, a remarkably diverse and biologically important region, ranging from some of the driest and hottest areas in North America to cool, temperate woodlands and the northernmost tropical regions in the New World. The majority of the trees in this semi-arid region are at their northern limits in the Americas in this state and many range to South America. Thus, this book will be important to biologists in regions well outside of the area covered. Felger is the recognized expert in the area, and the book contains an enormous body of information nowhere else obtainable. The introductory chapter contains biotic and climatic information and an analysis of the geographical distributions of the trees of a state that is poorly known biologically. Two hundred eighty-five species of native and naturalized trees are covered, featuring extensive identification keys and illustrations, most of them newly produced for this book. The descriptive species accounts include common names, indigenous names, and synonyms, detailed botanical descriptions, ecological and geographic data, geographic ranges, natural history, economic uses, and, in many cases, other information such as horticultural uses and conservation status.