书目名称 | Euphorbia in Southern Africa | 副标题 | Volume 2 | 编辑 | Peter V. Bruyns | 视频video | | 概述 | First account of the genus in southern Africa since 1941.Each species illustrated with colour photographs, line-drawings and distribution-map.New concept of subgenera, many new species and new concept | 图书封面 |  | 描述 | .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 he | 出版日期 | Book 2022 | 关键词 | Euphorbiae; Diversification; Biogeography; Molecular phylogeny; Species concept; Classification of Euphor | 版次 | 1 | doi | https://doi.org/10.1007/978-3-030-49399-8 | isbn_softcover | 978-3-030-49400-1 | isbn_ebook | 978-3-030-49399-8 | copyright | The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl |
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