| 沙芥属的分类校正及其区系分析 |
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| 引用本文： | 赵一之.沙芥属的分类校正及其区系分析[J].内蒙古大学学报(自然科学版),1999(2). |
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| 作者姓名： | 赵一之 |
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| 作者单位： | 内蒙古大学生态与环境科学系 |
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| 基金项目： | 国家自然科学基金重大项目 |
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| 摘 要： | 确认了沙芥属仅有Ｐｕｇｉｏｎｉｕｍｃｏｒｎｕｔｕｍ（Ｌ．）Ｇａｅｒｔｈ．和Ｐ．ｄｏｌａｂｒａｔｕｍＭａｘｉｍ．２种．确定了其植物区系地理成分前者为科尔沁－浑善达克－鄂尔多斯沙地种，分布在典型草原区的沙地；后者为大湖盆－阿拉善沙地种，分布在荒漠及荒漠化草原区的沙地；二者成明显的地理替代分布．沙芥属为蒙古高原沙地的特有属．
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| 关 键 词： | 沙芥属 校正 植物区系地理成分 替代分布 |
A Taxological Revision and Floristic Analysis of the Genus Pugionium |
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| ZHAO Yi,zhi.A Taxological Revision and Floristic Analysis of the Genus Pugionium[J].Acta Scientiarum Naturalium Universitatis Neimongol,1999(2). |
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| Authors: | ZHAO Yi zhi |
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| Abstract: | Affirms there are only two species in the genus Pugionium, which are Pugionium cornutum (L.) Gaerth.and P.dolabratum Maxim..Their floristic geographical elements are defined,the former is a distribution species of Keerqing Hunshandake Eerduosi sandland,which distribute over sandland of typical steppe region,and the latter is a distribution species of Dahupen Alashan sandland,which distribute over sandland of desert and desert steppe regions.They constitute geographical substitutional distribution,obviously. Pugionium is an endemic genus of Mongolian Plateau sandland. |
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| Keywords: | Pugionium revision floristic geographical element geographical substitute distribution |
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