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．
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.
出处
《内蒙古大学学报（自然科学版）》
CAS
CSCD
1999年第2期197-199,共3页
Journal of Inner Mongolia University：Natural Science Edition
基金
国家自然科学基金重大项目
关键词
沙芥属
植物区系
地理成分
分类
Pugionium
revision
floristic geographical element
geographical substitute distribution
