Crepis desertorum (Asteraceae, Cichorieae), a new species from northern Xinjiang (China) based on morphological and molecular data
Crepis desertorum (Asteraceae, Cichorieae), a new species from northern Xinjiang (China) based on morphological and molecular data
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DOI：
10.1016/j.pld.2019.11.003
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发表时间：
2019-12
期刊：
影响因子：
4.8
通讯作者：
J. Qiu;Jian-Wen Zhang;T. Gao;D. Tan
中科院分区：
文献类型：
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作者：
J. Qiu;Jian-Wen Zhang;T. Gao;D. Tan
本文记述了新疆北方准噶尔盆地产的还阳参属Crepis desertorum一新种。分子生物学研究表明，该种与冷还阳参（Crepis frigida）亲缘关系较近。形态学研究表明，它与Crepis sanctasubsp. bifidad相似，但与后者的区别在于茎上有腺毛，花托扁平，瘦果二型。文中还描述了该新种的染色体特征、花粉和瘦果的超微结构。
Crepis desertorumfrom the Junggar Basin of northern Xinjiang, northwestern China, is described as a new species. Molecular studies indicate that the species is closely related toCrepis frigida. Morphological studies indicate that it is similar toCrepis sanctasubsp.bifidabut differs from the latter taxon in having glandular hairs on the stem, a flat receptacle and dimorphic achenes. Chromosome features and pollen and achene ultrastructure also are described for the new species.