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福建薹草（莎草科），来自中国东南部福建的薹草核心类群的一个新物种。

Carex borealifujianica (Cyperaceae), a new species of the core Carex clade from Fujian, southeastern China.

机构信息

College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China.

State Key Laboratory of Subtropical Silviculture/Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Funcations/School of Forestry and Bio-Technology, Zhejiang A&F University, Hangzhou, Zhejiang, People's Republic of China.

出版信息

PLoS One. 2022 Mar 31;17(3):e0264419. doi: 10.1371/journal.pone.0264419. eCollection 2022.

DOI:10.1371/journal.pone.0264419
PMID:35358191
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8970524/
Abstract

A new species, Carex borealifujianica Y.F. Lu & X.F. Jin (Cyperaceae, sect. Occlusae of core Carex clade) is described and illustrated from northern Fujian, China. In addition to morphological comparisons with its relatives, comparative micromorphology of utricles and achenes of seven species in Carex sect. Occlusae was examined. Micromorphology of utricles and achenes revealed the similarity of Carex borealifujianica and C. ligulata. Morphologically, this new species is similar to Carex ligulata in having lateral spikes remote and densely flowered, as well as utricles densely hispidulous, but differs in having 2 or 3 narrowly clavate staminate spikes, leaves 2.5-5 mm wide with sheaths sparsely pilose, and achenes emarginate at the apex. The phylogenetic analysis from two nuclear DNA regions (ETS and ITS) and two chloroplast DNA regions (matK and trnL-F) of 68 taxa resolved C. borealifujianica as a distinct species.

摘要

一种新的物种，福建北莎草（Cyperaceae，莎草科 Occlusae 组核心 Carex 族），由 Y.F. Lu 和 X.F. Jin 描述并图示，来自中国福建北部。除了与近亲的形态比较外，还对 Occlusae 组的 7 种莎草科的瘦果和小坚果的比较微形态进行了研究。瘦果和小坚果的微形态显示福建北莎草与长喙薹草相似。形态上，这个新种与长喙薹草相似，具有侧穗远离且密集开花，以及瘦果密被刚毛，但有 2 或 3 个狭棒状雄穗，叶片 2.5-5 毫米宽，鞘部疏生柔毛，以及小坚果先端微凹。来自 68 个分类群的两个核 DNA 区（ETS 和 ITS）和两个叶绿体 DNA 区（matK 和 trnL-F）的系统发育分析将福建北莎草解析为一个独特的种。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/744144e9e09d/pone.0264419.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/b968e71086e6/pone.0264419.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/7f39accfdffa/pone.0264419.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/b99ddb6ef749/pone.0264419.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/6aa46940e25d/pone.0264419.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/65ae34e09e7c/pone.0264419.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/744144e9e09d/pone.0264419.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/b968e71086e6/pone.0264419.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/7f39accfdffa/pone.0264419.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/b99ddb6ef749/pone.0264419.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/6aa46940e25d/pone.0264419.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/65ae34e09e7c/pone.0264419.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ed46/8970524/744144e9e09d/pone.0264419.g006.jpg

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