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By: Peterson, Paul M. - Herrera Arrieta, Yolanda - Romaschenko, KonstantinType: ArticleIn: PhytoKeysVolume: 103Series:Issue:Date: 2018Page Range: 83-94Publication Info: Pensoft Publishers 2018Subjects: Grasses ITS Mexico Muhlenbergia plastid DNA sequences Schaffnerella gracilis systematics taxonomy