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(禾本科,针茅族),一种来自巴基斯坦开伯尔-普赫图赫瓦省帕拉钦纳尔的新物种。

 (Poaceae, Stipeae), a new species from Parachinar (Khyber Pakhtunkhwa, Pakistan).

作者信息

Sultan Amir, Khan Amjad, Khan Raees, Mehmood Asif, Hussain Murtaza, Nobis Marcin

机构信息

National Herbarium of Pakistan (Stewart Collection), National Agricultural Research Centre, Pakistan Agricultural Research Council, Islamabad, Pakistan National Agricultural Research Centre, Pakistan Agricultural Research Council Islamabad Pakistan.

Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, China Kunming Institute of Botany, Chinese Academy of Sciences Kunming China.

出版信息

PhytoKeys. 2025 Mar 14;253:287-294. doi: 10.3897/phytokeys.253.145562. eCollection 2025.

DOI:10.3897/phytokeys.253.145562
PMID:40123973
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11929003/
Abstract

The family of grasses (Poaceae) is one of the most diverse plant families, with the tribe Stipeae representing an ecologically significant group of more than 600 species primarily distributed in arid and semi-arid regions. The genus , a lesser-known member of this tribe, is characterised by unique morphological traits, including distinctive patterns of lemma epidermis. During field studies in the upper Kurram Valley, Pakistan, we found a new species, , which is described here. This perennial grass exhibits distinct morphological features, that differentiate it from previously known species. It is characterised by having up to 8.5 mm long ligules of cauline leaves, up to 15 cm long panicles bearing up to 41 spikelets, subequal glumes, lemma bearing two apical lobes, palea almost equal to lemma, 0.9-1.2 mm long obtuse callus and 50-70 mm long scabrid awns. Figures illustrating the new taxon and a comparison of distinguishing characters of the species representing the genus are presented.

摘要

禾本科是最多样化的植物科之一,针茅族是一个具有重要生态意义的类群,有600多种,主要分布在干旱和半干旱地区。该族中鲜为人知的属具有独特的形态特征,包括独特的外稃表皮图案。在巴基斯坦库拉姆河谷上游的野外研究中,我们发现了一个新物种,在此对其进行描述。这种多年生草本植物具有明显的形态特征,使其与先前已知的物种区分开来。其特征在于茎生叶舌长达8.5毫米,圆锥花序长达15厘米,有多达41个小穗,颖片近等长,外稃有两个顶端裂片,内稃几乎与外稃等长,胼胝体钝,长0.9 - 1.2毫米,芒粗糙,长50 - 70毫米。文中给出了新分类群的图示以及该属代表物种的鉴别特征比较。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eb6f/11929003/14a3b8b5b1a3/phytokeys-253-287_article-145562__-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eb6f/11929003/1cded80cbf5a/phytokeys-253-287_article-145562__-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eb6f/11929003/1546fdda8235/phytokeys-253-287_article-145562__-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eb6f/11929003/14a3b8b5b1a3/phytokeys-253-287_article-145562__-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eb6f/11929003/1cded80cbf5a/phytokeys-253-287_article-145562__-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eb6f/11929003/1546fdda8235/phytokeys-253-287_article-145562__-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/eb6f/11929003/14a3b8b5b1a3/phytokeys-253-287_article-145562__-g003.jpg

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PLoS One. 2024 Feb 27;19(2):e0298760. doi: 10.1371/journal.pone.0298760. eCollection 2024.
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A key to the North American genera of Stipeae (Poaceae, Pooideae) with descriptions and taxonomic names for species of , , , and five new genera: , ×, , , and .
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