Euphorbia

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Euphorbia In Southern Africa

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Author : Peter V. Bruyns
language : en
Publisher: Springer Nature
Release Date : 2022-07-18

Euphorbia In Southern Africa written by Peter V. Bruyns and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-18 with Science categories.

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.

The Euphorbia Journal

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Author :
language : en
Publisher:
Release Date : 1991

The Euphorbia Journal written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Euphorbia categories.

Euphorbia In Southern Africa

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Author : Peter V. Bruyns
language : en
Publisher: Springer Nature
Release Date : 2022-07-14

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.

Euphorbia Journal

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Author : Herman Schwartz
language : en
Publisher:
Release Date : 1991-06-01

Euphorbia Journal written by Herman Schwartz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-06-01 with Gardening categories.

Euphorbias

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Author : Roger Turner
language : en
Publisher: Timber Press (OR)
Release Date : 1995

Euphorbias written by Roger Turner and has been published by Timber Press (OR) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Euphorbia categories.

This book presents the species, varieties, and cultivars most suitable for outdoor cultivation in Europe and North America. Turner offers detailed descriptions of more than 80 species, both shrubs and herbaceous perennials. Published at $29.95 Our last copies available at $14.98

Euphorbias

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Author : Timothy Walker
language : en
Publisher: Mitchell Beazley
Release Date : 2008

Euphorbias written by Timothy Walker and has been published by Mitchell Beazley this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Euphorbia categories.

Any gardener can find imaginative solutions to many common problems by considering the possibilities of these versatile annuals. They range from creepers to large shrubs to tree-like succulents, and offer something to suit every soil and situation from dark, shady corners to hot, sunny slopes, and from soggy low spots to dry, well-drained spaces. The only book dedicated to this genus introduces its wide variety, and explains all aspects of care, cultivation, planting, and propagation.