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Eeonomie plants range from those that are eommercially utilised by the industrial nations of the world to those that safeguard the survival of hunter-gatherer aboriginal eommunities. In a world of inereasing human and livestock populations, land and environment degradation, species loss and climatic change, it is becoming inerea- singly important to work for the sustainable management of the world's natural resourees. This is especially important for the arid and semi-arid regions where any abuse of the harsh environment is unforgiving. Plant resourees are especially important sinee they...

This text focuses on arid and semi-arid environments and their classification, and the physiological restraints and the adaptations of plants to the environment. It also discusses economic botany and the needs and methods of conserving economic plants.

Although Alexander von Humboldt never saw a baobab, he wrote: Among organic creatures, this tree Dracaena draco (dragon tree)] is undoubtedly, together with the Adansonia or baobab of Senegal, one of the oldest inhabitants of our planet (Humboldt 1852). With their enormous size, distinctive and often grotesque appearance, and great age (measured perhaps in thousands of years), baobab trees attract the attention of botanists, amateurs, tourists and passers-by wherever they grow. Old specimens display highly individual, photogenic characteristics which endear them to local people, artists and...

The strength of this book is that it is written by someone who has spent a lifetime devoted to the science of economic botany. The author has brought together his vast experience in the field in Africa with his studies of arid land plants at the Royal Botanic Gardens, Kew. The result is an informative and reliable text that covers a vast range of topics. It is also firmly based upon the author's research and interest in plant taxonomy and therefore fully acknowledges the importance of correct naming and classification in the field of science of economic botany. The coverage is of economic...