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Bracts and bracteoles Morphology of Pleurospermum Hoffm. in Kun-Lun Mountains and Its Taxonomic Significance
FENG Ying;WU Yu-Hu;SHEN Guan-Mian
Bulletin of Botanical Research . 2009, (6): 674 -680 .  DOI: 10.7525/j.issn.1673-5102.2009.06.006