[PDF] Botanical Exploration Southern Africa eBook

Author : Mary Gunn
Publisher : CRC Press
Page : 844 pages
File Size : 18,70 MB
Release : 1981-06-01
Category : Science
ISBN : 9780869611296

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This text gives biographical accounts of the leading plant collectors and their activities in Southern Africa from the days of the East India Company until modern times.

Author : Estrela Figueiredo
Publisher : University of Chicago Press
Page : 355 pages
File Size : 37,29 MB
Release : 2024
Category : Biography & Autobiography
ISBN : 0226832082

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"For any region, understanding historical botanical exploration, plant collection, and preserved specimens is critically important for research and conservation. In this book, Estrela Figueiredo and Gideon F. Smith, both botanists with expertise on the taxonomy of African plants, provide the first thorough and comprehensive account of plant collecting in Angola, a large country in south-tropical Africa. An essential book for anyone concerned with the biodiversity and history of Africa, this authoritative work offers insights on the lives, times, and endeavors of 358 collectors. In addition, the authors present analyses of the records that accompanied the collectors' preserved specimens. Illustrated in color throughout, the result fills a serious void in the current knowledge of the botanical and exploration history of Africa"--

Author : John Hutchinson
Publisher :
Page : 776 pages
File Size : 10,63 MB
Release : 1946
Category : Africa, Southern
ISBN :

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Afrika, Florenwerke.

Author : H. F. Glen
Publisher : Jacana Media
Page : 448 pages
File Size : 37,72 MB
Release : 2002
Category : Gardening
ISBN : 9781919931173

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A listing of almost 9000 kinds of plants known to be cultivated in Southern Africa, or to have been tried here. The information is derived from a database containing details mainly of specimens archived in the National Herbarium, Pretoria.

Author : Peter V. Bruyns
Publisher : Springer Nature
Page : 515 pages
File Size : 39,27 MB
Release : 2022-07-14
Category : Science
ISBN : 3030493997

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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.