Natural Drugs from Plants emphasizes the importance of medicinal plants for drug discovery worldwide. Chapters discuss the active ingredients of certain medicinal plants, their mechanisms of action, and how they can be used to treat different diseases.
The Illustrated Handbook of Succulent Plants represents the first comprehensive taxonomic treatment of succulents in thirty years. It covers over 9000 taxa of all succulents except Cactaceae. The volume on dicotyledonous families embraces succulents from 47 families and 161 genera, further 8 families are shortly mentioned. Thus, a total of over 2000 species and 500 infraspecific taxa are covered. The families Didiereaceae, Fouquieriaceae and Nolanaceae are treated in their entirety - Portulacaceae with nearly all species. Euphorbia, with some 700 species, is the largest genus described. Other frequently cultivated genera covered in this volume include: Othonna and Senecio (Asteraceae), Jatropha and Monadenium (Euphorbiaceae), Pelargonium (Geraniaceae), Adenia (Passifloraceae), Peperomia (Piperaceae), as well as Cissus and Cyphostemma (Vitaceae). The focus is on caudiciform succulents grown in cultivation.
Every ecosystem is a complex organization of carefully mixed life forms; a dynamic and particularly sensible system. Consequently, their progressive decline may accelerate climate change and vice versa, influencing flora and fauna composition and distribution, resulting in the loss of biodiversity. Climate changes effects are the principal topics of this volume. Written by internationally renowned contributors, Biodiversity loss in a changing planet offers attractive study cases focused on biodiversity evaluations and provisions in several different ecosystems, analysing the current life condition of many life forms, and covering very different biogeographic zones of the planet.
Namaqualand – a desert of succulents. From dwarf species barely a few millimetres tall to trees several metres high, the range of succulent plants in this seemingly desolate region is unrivalled in both its extent and its variety of forms. Tiny plants that resemble flowering stones dot a plain of quartz; a minute 'garden' fills a rock crevice; an exuberant burst of vygies colours a patch of veld. About a third of the 3000 or so plant species in Namaqualand are succulents, and they include the largest concentration of miniature succulent species in the world. But there is much more. Namaqualand's bulb flora is the richest of any arid region on earth: amaryllids, irids, lilies and many more, all presenting an astonishing diversity of colour and form. Add to these the spectacular vistas of spring-flowering annuals for which Namaqualand is most famous, and the result is a truly remarkable flora, unrivalled elsewhere on earth. Yet for many years it has been overshadowed by the Cape Floral Kingdom to the south. In this exploration of a harsh wonderland, Richard Cowling and Shirley Pierce embark on redressing the balance, and in doing so discover climatic and other factors that have contributed to Namaqualand's rich flora. They reveal intriguing details of how plants survive a range of adverse conditions and, following the cycle of seasons, they highlight extraordinary facets of the plants' reproduction, including intricate relationships with insect pollinators. Complementing the text, Colin Paterson-Jones's magnificent photographs capture the vibrant colours of Namaqualand's flora, in both panorama and detail conveying the essence of this awe-inspiring land.
Alternatives in Synthesis, Modification and Application
Author: Vasil Georgiev
Publisher: BoD – Books on Demand
The book Alkaloids - Alternatives in Synthesis, Modification, and Application collects several chapters written by distinguished scientists and recognized experts in their respective fields of research. The purpose of this book is to focus the attention of a broad range of students, researchers, and specialists on some innovative and highly perspective areas in alkaloid research. The book covers several topics, guiding the readers from the development of nonconventional biotechnologies for alternative production of valuable alkaloids, through the application of modern chemical methods of asymmetric synthesis for production of synthetic and semisynthetic alkaloid derivatives, medicinal application of alkaloids as anesthetics and pain-relief drugs, analytical techniques for alkaloid profiling and their application in chemotaxonomy, quality control and standardization of raw plant material, to the importance of the control and reduction of alkaloid contents during production of animal feedstuffs.
An Encyclopedia of the World's Geographic Features
Author: Joyce A. Quinn
This unusual encyclopedia brings together in-depth information on more than 450 natural geographic features from around the world and offers an array of creative tools to promote critical thinking and classroom discussion. • Provides a one-stop reference for students of geography and environmental and earth sciences • Offers global coverage of diverse features, whether terrestrial, aquatic, geological, ecological, or physiographic • Includes an overview of the various kinds of landforms of the world, how they are formed, and how they continue to change over time • Explains each feature's origins and significance, as well as major environmental issues in which it's involved • Indicates the importance of features to the development of Western science and contemporary scientific thought in fields such as evolutionary biology, paleontology, plate tectonics, and climate change • Features a "Top 10s Appendix" to provoke student interest through statistics such as the tallest mountains, largest lakes, and longest rivers
This practical guide describes the stage by stage development of a new method for predicting the penetration rate (PR) and the advance rate (AR) for tunnel boring machines based on an expanded version of the Q-value, Qtbm.The book also looks at logging methods and tunnel support design.
Most botanical gardens include succulents in their collections; few are devoted solely to them. In Succulent Paradise, the reader is taken on a verbal and visual tour of twelve exceptional succulent gardens. See how a handful of landscaping and horticultural visionaries have juxtaposed indigenous and exotic plants with a blend of natural and created landscaping elements. Experience the impact and style of gardens in locations as diverse as steeply terraced Mediterranean cliffs, dusty Karoo plains, Mexico City’s metropolis, California’s canyons, and the red desert of Arizona. The authors have visited gardens around the world dedicated to the display, cultivation and propagation of succulent plants. In Succulent Paradise, they have expressed their love of these tenacious, yet surprisingly glamorous, plants as well as appreciation for those whose vision and persistence has variously created abundance, promoted conservation, and left a legacy for future generations.