Taxonomic Revision of the Eurasian Stipa Subsections Stipa and Tirsae (Poaceae)
Taxonomic Revision of the Eurasian Stipa Subsections Stipa and Tirsae (Poaceae)
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DOI：
10.1600/036364413x666615
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发表时间：
2013-04-01
影响因子：
1
通讯作者：
Angel Garcia, Miguel
中科院分区：
文献类型：
--
作者：
Gonzalo, Raul;Aedo, Carlos;Angel Garcia, Miguel
标题针茅属亚组的综合分类修订。Stipa和Tirsae介绍。通过对27个标本馆1353份标本的研究，分析了这两个亚组的形态变异模式。进一步探讨了花和叶形态的变异，并利用单变量分析（Anova，Tukey检验和χ 2检验）和多变量检验（主成分分析和判别分析）对165个标本的分类群界限进行了重新评估。我们发现了一个亚组种。Tirsae加上亚组的三个种和五个亚种。针茅属植物可根据形态特征进行区分。对于每个分类群，我们提出了一个二分法的关键，一个列表的同义词，详细的形态描述，插图和分布图。此外，还提出了S.一品红变种mollis（subsection Stipa）和S. aperta（Stipa亚组），并提出了一个选择模式。cerariorum（Tirsae小节）。同样地，还提出了两个新的组合：针茅亚组Tirsae（Martinovsky）R. Gonzalo和土耳其斯坦针茅Macroglossa（P.ASmirn.）R.贡萨洛
A comprehensive taxonomic revision of Stipa subsects. Stipa and Tirsae is presented. We analyzed the pattern of morphological variation of the taxa included in both subsections through the study of 1353 vouchers from 27 herbaria. Variation in floral and leaf morphology was further explored to revaluate taxon limits in 165 specimens using univariate analyses (Anova, Tukey test and, chi(2) test), and multivariate tests (principal components analysis and discriminant analysis). We found that one species of subsect. Tirsae plus three species and five subspecies of subsect. Stipa can be distinguished based on morphological characters. For each taxon, we present a dichotomous key, a list of synonyms, detailed morphometric descriptions, illustrations, and distribution maps. In addition, neotypes are proposed for S. pulcherrima var. mollis (subsection Stipa) and S. aperta (subsection Stipa), and a lectotype is proposed for S. cerariorum (subsection Tirsae). Likewise, two new combinations are proposed: Stipa subsection Tirsae (Martinovsky) R. Gonzalo, and Stipa turkestanica subspecies macroglossa (P.A Smirn.) R. Gonzalo.