Del Weniger presents a beautifully illustrated account of all the cacti found in Texas, New Mexico, Oklahoma, Arkansas, and Louisiana. Cactus blossoms often rival the most exotic hothouse plants for delicate beauty. Depending upon the species, they range in color from white through almost the entire spectrum of the rainbow. Nearly every plant in the five-state area is here pictured in color, usually in full bloom.

The cactus was one of the most completely new and different plants encountered by Europeans in the Americas, and the larger species, at least, easily made their presence known to even the most unobservant passerby. To the observant the cactus in its surprising variety of forms has from the beginning exercised a strong fascination. The casual student may easily identify most specimens from these illustrations, and the more serious student will find detailed keys to all of the cacti of the area.

The Cactus Primer presents the amateur cactophile with an excellent introduction to cactus biology and provides the informed reader with an invaluable summary of the last forty years' research. This book goes far beyond books that instruct readers in the propagation, growth, and care of these plants; addressing matters of more scientific interest, it takes an integrated approach to the presentation of the form, physiology, evolution, and ecology of cacti. The book is unique in that it combines the descriptive morphology and physiology documented in the scientific literature with more general observations found in popular publications on cacti. It provides a new generic classification of the cacti and contains much new information, including data on photosynthesis, heat and cold tolerance, computer modeling of ribs, and the effects of spines.

Enhanced by over 400 illustrations and supplemented with an extensive glossary, this book will appeal to cactus enthusiasts interested in the classification and growth of cacti, as well as to plant biologists who use cacti to illustrate desert adaptation and convergent evolution. Written in accessible style, The Cactus Primer is bound to serve a dual function as both an instructive tool and a reference work in cactus biology for years to come.

Drawing on the study of thousands of specimens, Carex of Illinois and Surrounding States: The Oval Sedges is an invaluable resource for botanists, ecologists, environmental engineers, and professional and amateur environmentalists interested in a deeper understanding of these essential plants.

Dense with winding paths, dominated by huge rock piles and buildings squeezed into small spaces, the characteristic Chinese garden is, for many foreigners, so unlike anything else as to be incomprehensible. Only on closer acquaintance does it offer up its mysteries; and such is the achievement of Maggie Keswick's celebrated classic that it affords us--adventurers, armchair travelers, and garden buffs alike--the intimate pleasures of the Chinese garden.

In these richly illustrated pages, Chinese gardens unfold as cosmic diagrams, revealing a profound and ancient view of the world and of humanity's place in it. First sensuous impressions give way to more cerebral delights, and forms conjure unending, increasingly esoteric and mystical layers of meaning for the initiate. Keswick conducts us through the art and architecture, the principles and techniques of Chinese gardens, showing us their long history as the background for a civilization--the settings for China's great poets and painters, the scenes of ribald parties and peaceful contemplation, political intrigues and family festivals.

Updated and expanded in this third edition, with an introduction by Alison Hardie, many new illustrations, and an updated list of gardens in China accessible to visitors, Keswick's engaging work remains unparalleled as an introduction to the Chinese garden.

Corn is among the most familiar of grains; it is also one of the most mysterious. In this handsomely illustrated new book, Paul Mangelsdorf, perhaps the world's foremost expert on the corn plant, summarizes the work of a lifetime devoted to unraveling the enigma of corn.

This unique grain--it has no close counterpart elsewhere in the plant kingdom--exists only in association with man, and it survives only as a result of his intervention. Thus, the story of corn is in many ways a story about people. Combining the skills of scientist and storyteller, Professor Mangelsdorf in his search for the origin of corn takes the reader to archaeological digs in once-inhabited caves in Mexico and the United States Southwest, to the discovery of fossil pollen in drill cores taken deep below Mexico City, and to experimental fields where the great diversity of corn is revealed and where the plant is hybridized with its relatives teosinte and Tripsacum.

Drawing upon the evidence from botany, genetics, cytology, archaeology, and history, the author seeks to evaluate various hypotheses on the origin of corn. He concludes that the ancestor of cultivated corn was a wild form of pod corn; that corn may have been domesticated more than once in both Mexico and South America from different geographical races of wild corn; and that hybridizations between corn and its various relatives have resulted in explosive evolution leading to a diversity of varieties and forms unmatched in any other crop plant.

This is a book about corn, but it is a book for biologists, agronomists, anthropologists, and historians, and for the interested layman who would like to know something about the grain which, "transformed, as three fourths of it is, into meat, milk, eggs, and other animal products, is our basic food plant, as it was of the people who preceded us in this hemisphere."