Dioscorea species, commonly known as yams, are tuberous plants that constitute a major staple food in many parts of Africa, South East Asia, Latin America and the South Pacific. Yams are cultivated in about 50 mainly tropical countries, and the world annual production of edible tubers is around 73 million tonnes. This book evaluates the current state of knowledge about yams, and how this knowledge affects practices in production, cultivation and postharvest technology. Dioscorea is a diverse genus in terms of its geographical origin, domestication, morphology, chemistry and breeding. Therefore, besides concentrating on the dozen or so species that are used as major food crops, the book examines species that have limited commercial or domestic value at present, but have the potential in future to contribute to the production and utilization of this crop.

Review of tropical dry forest biogeography, palaeontology, ecology and ecosystem functions.

Southern Asia is a vast and ecologically diverse region that extends from the deserts of Afghanistan to the rainforests of Thailand, and is home to a marvelously rich palm flora. Palms of Southern Asia is the only complete field guide to the 43 genera and 352 species of palms and rattans that occur in Afghanistan, Bangladesh, Bhutan, Cambodia, China, India, Japan, Laos, Myanmar, Nepal, Pakistan, Sri Lanka, Taiwan, Thailand, and Vietnam. This attractive guide's handsome illustrations and succinct, authoritative, and jargon-free text make identification easy. Each species account includes the correct scientific and common names, and fully describes morphology, habitat, and uses. Featuring a distribution map for most species and 256 full-color photographs, this is also the only field guide to cover the extremely diverse palm flora of Vietnam, and the first to offer a taxonomic overview of the rattan species of Southern Asia. Palms of Southern Asia is a book of major importance for botanists and an invaluable aid for naturalists and conservationists, and it's the perfect field guide for ecotourists traveling in the region. Covers all 352 naturally occurring palms in Southern Asia Features full-color photographs of 256 species, many never before illustrated Includes a distribution map for most species Provides the first taxonomic overview of the rattans of Southern Asia

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Genera Orchidacearum is the first monograph of the world's orchid genera that reflects their long evolutionary history and reveals relationships based on genealogical descent and the most up-to-date DNA data.

Evolution of land plant -- Plants and human culture -- Naming plants -- Classification and the angiosperm phylogeny group