A New Species of Leymus (Poaceae, Triticeae) from China

• En-Hua Tang ^[1] ; Ying Liu ^[1] ; Jian-Dong Li ^[1] ; Hong-Xing Xiao ^[1]
  1. [1] Northeast Normal University

     Northeast Normal University

     China

     
• Localización: Novon: a journal for botanical nomenclature, ISSN 1055-3177, Vol. 22, Nº. 2, 2012, págs. 227-234
• Idioma: inglés
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• Resumen

  • A new species of Leymus Hochst. (Poaceae, Triticeae) from Inner Mongolia, China, L. pubens H. X. Xiao, is described, illustrated, and compared with its closest relatives. This species was initially identified as L. chinensis (Trin.) Tzvelev, but the upper surfaces of its leaf blades are spinulose, and the internode below the spike, upper half of the rachis, rachilla, and lemmas are sparsely puberulent. A key is provided for L. pubens and closely related species of Leymus. The identification of the new species is also supported by nuclear ribosomal ITS and chloroplast trnL-F sequence analyses.