Stipa zeravshanica sp. nov. (Poaceae), an endemic species from rocky walls of the western Pamir Alai Mountains (middle Asia)

Marcin Nobis; Arkadiusz Nowak; Agnieszka Nobis

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Stipa zeravshanica sp. nov. (Poaceae), an endemic species from rocky walls of the western Pamir Alai Mountains (middle Asia)

机译：大针zeravshanica sp. 11月(禾本科),一种流行物种的岩石墙壁西方帕米尔高原阿莱山脉山脉(亚洲)

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摘要

Stipa zeravshanica M. Nobis sp. nov. from the western Pamir Alai Mts (Tajikistan) is described and illustrated. Morphologically, the new species is similar to S. gracilis, but it is easily distinguishable by pilose (vs. glabrous) lowet part of the awn, and generally somewhat longer ligules of the vegetative shoots. Epidermal patterns of the lemma in S. zeravshanica and three other closely related taxa, namely S. gracilis, S. himalaica and 5. orientalis, were examined by means of SEM. The main macro-morphological and micro-morphological characteristics differentiating all mentioned species are presented. Additionally, a lectotype for S. gracilis is designated. Based on phytosociological releves prepared during field investigation in the western Pamir Alai Mts, a new plant association Asperulo albiflorae-Stipetum zeravshanicae, occurring on shelves and rocky crevices is also described.

机译：大针zeravshanica m . Nobis sp. 11月的西方帕米尔高原阿莱山脉Mts(塔吉克斯坦)和插图。类似于美国股薄肌,但它很容易吗区分,有毛的lowet(与无毛)芒的一部分,通常的时间要长一些舌状的营养芽。zeravshanica和引理的模式其他三个密切相关的分类单元,即S。gracilis himalaica and页5 .通过扫描电镜检查。macro-morphological和微观区分所有提到的特点物种。因为美国股薄肌是指定的。phytosociological地形准备在字段调查在西方帕米尔高原阿莱山脉Mts,新厂协会Asperuloalbiflorae-Stipetum zeravshanicae,发生货架和岩石裂缝。

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《Nordic Journal of Botany》 |2013年第6期|666-675|共10页
作者
Marcin Nobis; Arkadiusz Nowak; Agnieszka Nobis;
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作者单位

Dept of Biosystematics, Lab of Geobotany and Plant Conservation, Opole Univ., Oleska 22, PL-45-052 Opole, Poland;

Dept ofPlantTaxonomy, Phytogeography and Herbarium, Inst, of Botany, Jagiellonian Univ., Kopernika 27, PL-31-501 Krakow, Poland;

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正文语种英语
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关键词
Alai; Lemma; Endemic speciespetrousGracilis MuscleAristaStipaIndigenous speciesField investigations;

机译：MuscleAristaStipaIndigenous speciesField调查;

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Stipa zeravshanica sp. nov. (Poaceae), an endemic species from rocky walls of the western Pamir Alai Mountains (middle Asia)

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