{"title":"<i>Carexyankouensis</i>, a new species of Cyperaceae from limestone landform in northern Guangdong, China.","authors":"Ang Liu, Jian-Jun Zhou, Lei Wu, Xun-Lin Yu","doi":"10.3897/phytokeys.254.140929","DOIUrl":null,"url":null,"abstract":"<p><p><i>Carexyankouensis</i>, a new species of Cyperaceae (CarexsectionRhomboidales) from the limestone landform in northern Guangdong, China is described and illustrated. The new species is similar to <i>C.brevicuspis</i> C. B. Clarke, but differs in having shorter culms (10-15 cm vs 20-55 cm) and spikes (1-1.5 cm vs 3.7-7 cm), leaves wider (15-20-35 mm vs 5-10 mm) and lighter colored (pale green or yellow-green vs dark green), nutlet beak oblique (vs erect or slightly curved), and slightly thickened (vs thickened) style base. Following the IUCN Red List Criteria (IUCN 2024), <i>Carexyankouensis</i> is assessed as 'Data Deficient (DD)'.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"254 ","pages":"77-85"},"PeriodicalIF":1.5000,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11959286/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"PhytoKeys","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.3897/phytokeys.254.140929","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Carexyankouensis, a new species of Cyperaceae (CarexsectionRhomboidales) from the limestone landform in northern Guangdong, China is described and illustrated. The new species is similar to C.brevicuspis C. B. Clarke, but differs in having shorter culms (10-15 cm vs 20-55 cm) and spikes (1-1.5 cm vs 3.7-7 cm), leaves wider (15-20-35 mm vs 5-10 mm) and lighter colored (pale green or yellow-green vs dark green), nutlet beak oblique (vs erect or slightly curved), and slightly thickened (vs thickened) style base. Following the IUCN Red List Criteria (IUCN 2024), Carexyankouensis is assessed as 'Data Deficient (DD)'.
Carexyankouensis 是产于中国广东北部石灰岩地貌的一种新种，本报告对其进行了描述并绘制了插图。该新种与 C.brevicuspis C. B. Clarke 相似，但茎秆（10-15 厘米 vs 20-55 厘米）和穗状花序（1-1.5 厘米 vs 3.7-7 厘米）较短，叶片较宽（15-20-35 毫米 vs 5-10 毫米），颜色较浅（淡绿色或黄绿色 vs 深绿色），小坚果喙偏斜（直立或稍弯曲），花柱基部稍加厚（加厚）。根据《世界自然保护联盟红色名录标准》（IUCN 2024），Carexyankouensis 被评定为 "数据不足（DD）"。
期刊介绍：
PhytoKeys is a peer-reviewed, open-access, online and print, rapidly produced journal launched to support free exchange of ideas and information in systematic botany.
All papers published in PhytoKeys can be freely copied, downloaded, printed and distributed at no charge for the reader. Authors are thus encouraged to post the pdf files of published papers on their homepages or elsewhere to expedite distribution. There is no charge for color.
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