Morphology of new taxa in the Cymbella aspera and Cymbella neocistula groups, Cymbella yakii sp. nov., and Cymbella cf. hantzschiana from Everest National Park, Nepal
Morphology of new taxa in the Cymbella aspera and Cymbella neocistula groups, Cymbella yakii sp. nov., and Cymbella cf. hantzschiana from Everest National Park, Nepal
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发表时间：
2010
影响因子：
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通讯作者：
I. Jüttner;S. Gurung;Chhatra Mani Sharma;Subodh Sharma;M. Haan;B. Vijver
中科院分区：
文献类型：
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作者：
I. Jüttner;S. Gurung;Chhatra Mani Sharma;Subodh Sharma;M. Haan;B. Vijver
记述了采自尼泊尔珠峰国家公园Gokyo和Dudh Koshi山谷的桥弯藻属Cymbella的3个新种和1个新变种。喜马拉雅桥弯藻Juttner & Van de Vijver和货车弯藻C. subhimalaspera Juttner和货车de Vijver与C. aspera（Ehrberg）H. Peragallo，但不同于类似的类群方面的乳晕的形状，近中缝末端和柱头。新泡桥弯藻变种nepalensisJuttner &货车deVijver在瓣叶形状上不同于命名型。Yakii桥弯藻与C. parva（W. Smith）Kirchner在Cohn和C. excisa Kutzing，但在气门形状和气门数量上存在差异。与C. hantzelyana Krammer详细描述。
Three new species and one new variety of the genus Cymbella are described from the Gokyo and Dudh Koshi Valleys in Everest National Park, Nepal. Cymbella himalaspera Juttner & Van de Vijver and C. subhimalaspera Juttner & Van de Vijver are related to species in the group around C. aspera (Ehrenberg) H. Peragallo but differ from similar taxa with respect to the shape of the areolae, the proximal raphe endings and the stigmata. Cymbella neocistula var. nepalensis Juttner & Van de Vijver differs from the nominate form in valve shape. Cymbella yakii is similar to species around C. parva (W. Smith) Kirchner in Cohn and C. excisa Kutzing but differs in valve shape and the number of stigmata. A taxon similar to C. hantzschiana Krammer is described in detail.