Download or read book Euphorbia in Southern Africa written by Peter V. Bruyns and published by Springer Nature. This book was released on 2022-07-18 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a new account of Euphorbia in southern Africa. Euphorbia is the second largest genus of plants in the world. Southern Africa enjoys a high diversity in Euphorbia and 170 species occur here naturally. Of these 170 species, 128 or 74% are endemic. Where most species of Euphorbia in the northern hemisphere are herbs or shrubs, most of those in southern African are succulent. These succulents range from small, almost geophytic forms where the tuber is larger than the above-ground parts to huge trees 6 to 15 m or more in height. Many of them are spiny. There are also small numbers of herbaceous species in southern Africa and many of these are also dealt with here. The last account of the succulent species for southern Africa was published in 1941 and much new data has accumulated since then. Our understanding of the relationships of the species in Euphorbia has also been greatly enhanced by recent analyses of DNA-data, which led to new and unexpected results. From this new information an entirely new classification was developed, in which Euphorbia was divided into four subgenera. This provides the taxonomic framework for the presentation of our species here. Around ten new species have been described and these are presented in detail for the first time. This monograph is made up of two volumes. Volume 1 contains an extensive introductory chapter with an overview of the genus in the region, emphasizing many of its important and distinctive features. This is followed by Chapter 2, which deals with subgenus Athymalus. Of the four subgenera, this one is by far the most diverse in southern Africa, with 80 species. Volume 2 contains Chapters 3 (subg. Chamaesyce, 34 species), 4 (subg. Esula, 11 species) and 5 (subg. Euphorbia, 45 species), as well as an additional Chapter 6 covering the remarkable diversity of subg. Euphorbia in Moçambique. Each of Chapters 2 to 5 includes a key to all the species, followed by an account of each of them. This account includes synonymy, a description, data on distribution and habitat, line-drawings of floral features and other diagnostic details, notes on how the species is distinguished from its closest relatives and a brief history of its discovery. Several colour photographs are included for each species, illustrating its habitat, vegetative habit and flowering features, demonstrating key points distinguishing it from others and often showing its variability. Euphorbia is an important component of the vegetation in many of the drier parts of southern Africa. This book is based on a thorough evaluation of the vast herbarium record for southern African members of Euphorbia, on the extensive field-work conducted in the region and the wide taxonomic experience of the author. It is believed that both the professional botanist and the layman will find much that is new and informative in this monograph.
Download or read book Euphorbia in Southern Africa written by Peter V. Bruyns and published by Springer Nature. This book was released on 2022-07-14 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a new account of Euphorbia in southern Africa. Euphorbia is the second largest genus of plants in the world. Southern Africa enjoys a high diversity in Euphorbia and 170 species occur here naturally. Of these 170 species, 128 or 74% are endemic. Where most species of Euphorbia in the northern hemisphere are herbs or shrubs, most of those in southern African are succulent. These succulents range from small, almost geophytic forms where the tuber is larger than the above-ground parts to huge trees 6 to 15 m or more in height. Many of them are spiny. There are also small numbers of herbaceous species in southern Africa and many of these are also dealt with here. The last account of the succulent species for southern Africa was published in 1941 and much new data has accumulated since then. Our understanding of the relationships of the species in Euphorbia has also been greatly enhanced by recent analyses of DNA-data, which led to new and unexpected results. From this new information an entirely new classification was developed, in which Euphorbiawas divided into four subgenera. This provides the taxonomic framework for the presentation of our species here. Around ten new species have been described and these are presented in detail for the first time. This monograph is made up of two volumes. Volume 1 contains an extensive introductory chapter with an overview of the genus in the region, emphasizing many of its important and distinctive features. This is followed by Chapter 2, which deals with subgenus Athymalus. Of the four subgenera, this one is by far the most diverse in southern Africa, with 80 species. Volume 2 contains Chapters 3 (subg. Chamaesyce, 34 species), 4 (subg. Esula, 11 species) and 5 (subg. Euphorbia, 45 species), as well as an additional Chapter 6 covering the remarkable diversity of subg. Euphorbia in Moçambique. Each of Chapters 2 to 5 includes a key to all the species, followed by an account of each of them. This account includes synonymy, a description, data on distribution and habitat, line-drawings of floral features and other diagnostic details, notes on how the species is distinguished from its closest relatives and a brief history of its discovery. Several colour photographs are included for each species, illustrating its habitat, vegetative habit and flowering features, demonstrating key points distinguishing it from others and often showing its variability. Euphorbia is an important component of the vegetation in many of the drier parts of southern Africa. This book is based on a thorough evaluation of the vast herbarium record for southern African members of Euphorbia, on the extensive field-work conducted in the region and the wide taxonomic experience of the author. It is believed that both the professional botanist and the layman will find much that is new and informative in this monograph.
Download or read book Field Guide to the Succulent Euphorbias of Southern Africa written by Becker MOLLER and published by . This book was released on 1920-05 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Succulent Euphorbieae southern Africa written by Alain Campbell White and published by . This book was released on 1941 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Succulents of Southern Africa written by Gideon Smith and published by Penguin Random House South Africa. This book was released on 2011-11-05 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring 250 of the region’s most common and interesting succulents, this is an accessible, user-friendly guide to identifying these increasingly popular plants. Colour photographs vividly portray all the species covered. Authoritative text describes key identification features, and distribution maps show the occurrence of each species in southern Africa. This guide will have wide appeal both to naturalists and to the gardening public who, increasingly, are on the lookout for indigenous, low-maintenance and waterwise plants.
Download or read book Sasol First Field Guide to Succulents of Southern Africa written by John Manning and published by Penguin Random House South Africa. This book was released on 2011-11-24 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sasol First Field Guide to Succulents of Southern Africa is a fascinating guide to the succulents of the region. Full-colour photographs, distribution maps and easy-to-read text will help the beginner and budding naturalist to identify the more common succulents found in southern Africa, discover where they occur and learn about their unique features.
Download or read book Plants of Southern Africa written by and published by . This book was released on 2003 with total page 1250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Succulent Flora of Southern Africa written by Doreen Court and published by CRC Press. This book was released on 2000-06-01 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Succulent Flora of Southern Africa written by Doreen Court and published by . This book was released on 1981 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Guide to Trees of Southern Africa written by Braam van Wyk and published by Penguin Random House South Africa. This book was released on 2013-08-06 with total page 2943 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensively updated and expanded edition of the region’s best-selling field guide to trees offers much, much more than the highly successful first edition. Fully updated text (including additional species entries) and distribution maps, numerous new photographs and a new 87-page section of full-tree photographs makes this well-loved guide even more indispensable in the field. Southern Africa has a rich variety of tree species, with an estimated 2 100 indigenous species and more than 100 naturalised aliens. Field Guide to Trees of Southern Africa describes and illustrates more than 1 000 of these, focusing on trees that are the most common and most likely to be encountered. Species are logically arranged in 43 groups based on easy-to-observe leaf and stem features, and each account is illustrated by full-colour photographs of the plant’s diagnostic parts. The text also touches on the practical uses of the plants.
Download or read book Medicinal Plants of the World written by Ben-Erik Van Wyk and published by Virago Press. This book was released on 2004 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication provides a comprehensive and scientifically accurate guide to the best-known and most important medicinal plants, including those of special commercial or historical interest. It includes descriptions of more than 300 medicinal plants and their close relatives, with each entry summarising botanical background, geographical origin, therapeutic category, historical and modern uses, active ingredients, and pharmacological effects. Over 500 full-color photographs are included to assist in the identification of the plants.
Download or read book Seed Plants of Southern Tropical Africa written by O. A. Leistner and published by . This book was released on 2005 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stapeliads of Southern Africa and Madagascar written by Peter V. Bruyns and published by . This book was released on 2005 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sedge Cyperaceae Genera of Africa and Madagascar written by Jane Browning and published by Troubador Publishing Ltd. This book was released on 2017-05-16 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sedges (of the plant family Cyperaceae) can appear seemingly insignificant. On closer inspection, however, their hidden, complex and remarkable constructive design is revealed. In order to facilitate identification of the 63 genera occurring in Africa and Madagascar, this book includes, for the first time, photographs of the living sedge plants in their natural habitats and line drawings of their morphology. Additionally, photographs of small fruits, as they appear under a microscope, are included as well as full botanical descriptions, so that a detailed assessment of these plants is possible. The genera illustrated and accounted for here, carry the names that were applied at the turn of the century. Most of these names are still in use today, however, due to recent and on-going research there have been changes, not only to genera, but also to species within these genera. A list of these name changes is included so that the work is fully up to date at this time. Sedges are widely distributed in a number of diverse habitats (most often found in wetlands and on the margins of lakes, rivers and streams). This publication focuses on those genera occurring in Africa and Madagascar, however, as these plants are also represented on other continents, the taxonomic tools for identification presented here will be useful to those further afield. Beyond this, this book provides a window to the beauty of these often overlooked, but exquisite, plants.
Download or read book The Importance of Soil Organic Matter written by Alexandra Bot and published by Food & Agriculture Org.. This book was released on 2005 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil organic matter - the product of on-site biological decomposition - affects the chemical and physical properties of the soil and its overall health. Its composition and breakdown rate affect: the soil structure and porosity; the water infiltration rate and moisture holding capacity of soils; the diversity and biological activity of soil organisms; and plant nutrient availability. This document concentrates on the organic matter dynamics of cropping soils and discusses the circumstances that deplete organic matter and their negative outcomes. It then moves on to more proactive solutions. It reviews a "basket" of practices in order to show how they can increase organic matter content and discusses the land and cropping benefits that then accrue.--Publisher's description.
Download or read book The Euphorbia Journal written by and published by . This book was released on 1983 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Designing with Succulents written by Debra Lee Baldwin and published by Timber Press. This book was released on 2011-03-18 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lavishly illustrated with over 300 photographs, Designing with Succulents gives design and cultivation basics for paths, borders, slopes, and containers; hundreds of succulent plant recommendations; and descriptions of 90 easy-care, drought-tolerant companion plants. Beginners and experienced designers, landscapers, and collectors alike will find what they need to visualize, create, and nurture the three-dimensional work of art that is the succulent garden.
