{"title":"来自玻利维亚圣克鲁斯省东部花岗岩岛山的一个新物种--Praxelis cleggiae（复合植物纲：大戟科：Praxeliinae）。","authors":"D. J. Nicholas Hind, Sara L. Edwards","doi":"10.1007/s12225-024-10189-1","DOIUrl":null,"url":null,"abstract":"<p><i>Praxelis cleggiae</i> (Compositae: Eupatorieae: Praxeliinae) is described and illustrated from the granite inselbergs (upon which it is most common), and on road crown chippings on old roads, in the Departamento de Santa Cruz, Bolivia; it has a disjunct distribution and is also found on the Serranía San Simón, in the San Ignacio Schist belt, Departamento de Beni. Material of this species was mostly determined as <i>P. insignis</i> (Malme) R.M.King & H.Rob., a Brazilian species, described from the metamorphosed sandstone of what is now the Parque Nacional da Chapada dos Guimarães in Mato Grosso State. The two species have some superficial resemblance, but differ significantly in plant size, internode length (relative to leaf length), branching, leaf shape and size, phyllaries, achenes and pappus. The total number of species of <i>Praxelis</i> recognised in Bolivia is now seven, and 20 species in the genus worldwide.</p>","PeriodicalId":51321,"journal":{"name":"Kew Bulletin","volume":"8 1","pages":""},"PeriodicalIF":0.9000,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Praxelis cleggiae (Compositae: Eupatorieae: Praxeliinae), a new species from the granite inselbergs in the east of the Departamento de Santa Cruz, Bolivia\",\"authors\":\"D. J. Nicholas Hind, Sara L. Edwards\",\"doi\":\"10.1007/s12225-024-10189-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><i>Praxelis cleggiae</i> (Compositae: Eupatorieae: Praxeliinae) is described and illustrated from the granite inselbergs (upon which it is most common), and on road crown chippings on old roads, in the Departamento de Santa Cruz, Bolivia; it has a disjunct distribution and is also found on the Serranía San Simón, in the San Ignacio Schist belt, Departamento de Beni. Material of this species was mostly determined as <i>P. insignis</i> (Malme) R.M.King & H.Rob., a Brazilian species, described from the metamorphosed sandstone of what is now the Parque Nacional da Chapada dos Guimarães in Mato Grosso State. The two species have some superficial resemblance, but differ significantly in plant size, internode length (relative to leaf length), branching, leaf shape and size, phyllaries, achenes and pappus. The total number of species of <i>Praxelis</i> recognised in Bolivia is now seven, and 20 species in the genus worldwide.</p>\",\"PeriodicalId\":51321,\"journal\":{\"name\":\"Kew Bulletin\",\"volume\":\"8 1\",\"pages\":\"\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2024-06-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Kew Bulletin\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1007/s12225-024-10189-1\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Kew Bulletin","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1007/s12225-024-10189-1","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
摘要
Praxelis cleggiae（菊科：Eupatorieae：Praxeliinae）的描述和插图来自玻利维亚圣克鲁斯省的花岗岩岛山（其上最常见），以及旧公路上的路冠碎屑；它分布不均，也见于贝尼省圣伊格纳西奥片岩带的圣西蒙山脉（Serranía San Simón）。该物种的大部分材料被确定为 P. insignis (Malme) R.M.King & H.Rob.，一个巴西物种，描述自现在马托格罗索州 Parque Nacional da Chapada dos Guimarães 的变质砂岩。这两个物种表面上有些相似，但在植株大小、节间长度（相对于叶片长度）、分枝、叶片形状和大小、叶状体、瘦果和叶枕等方面有显著差异。目前，玻利维亚已确认的 Praxelis 种类总数为 7 种，该属在全世界共有 20 种。
Praxelis cleggiae (Compositae: Eupatorieae: Praxeliinae), a new species from the granite inselbergs in the east of the Departamento de Santa Cruz, Bolivia
Praxelis cleggiae (Compositae: Eupatorieae: Praxeliinae) is described and illustrated from the granite inselbergs (upon which it is most common), and on road crown chippings on old roads, in the Departamento de Santa Cruz, Bolivia; it has a disjunct distribution and is also found on the Serranía San Simón, in the San Ignacio Schist belt, Departamento de Beni. Material of this species was mostly determined as P. insignis (Malme) R.M.King & H.Rob., a Brazilian species, described from the metamorphosed sandstone of what is now the Parque Nacional da Chapada dos Guimarães in Mato Grosso State. The two species have some superficial resemblance, but differ significantly in plant size, internode length (relative to leaf length), branching, leaf shape and size, phyllaries, achenes and pappus. The total number of species of Praxelis recognised in Bolivia is now seven, and 20 species in the genus worldwide.
期刊介绍：
Kew Bulletin is an international peer-reviewed journal for the taxonomy, systematics and conservation of vascular plants and fungi. Papers on conservation, evolution, palynology, cytology, anatomy, biogeography and phytochemistry are considered, where relevant to taxonomy and systematics. Review papers on topics appropriate to the journal are invited. The journal is richly illustrated with line drawings and photographs, and also features a Book Review and Notices section. Four parts (c. 640 pp) are published each year.
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