【摘要】 为了深入研究内蒙古自治区境内各个盟旗地方的植物资源,内蒙古植物志编委会于1982年组织了对阿拉善盟额济纳旗的植物标本采集和植被、植物区系考察工作。此报告即是这次考察的初步总结。本次考察,考虑到当地植物中藜科、菊科所占比重较大,所以选在秋季进行。从9月2日开始至29日止,历时28天。共采得标本200余号,加上收集到额旗草原站、中国科学院沙漠研究所额旗考察队以及内蒙古大学标本室原有标本,初步鉴定为42科119属189种。发现《内蒙古植物志》没收载的新科一个:瓣鳞花科Frankeniaceae;新分布属六个:戈壁藜属Iljinia、盐穗木属Halochemum、盐生草属Halogeton、单刺蓬属Cornulaca、骆驼刺属Alhagi、白麻属Poacvnum;新分布种十多个:钩状雾冰藜、蒿叶猪毛菜、毛花地肤、盘果碱蓬、阿拉善独行菜、积鸡菜、东方铁线莲、甘青铁线莲、密枝委陵菜、白皮锦鸡儿、树岩黄芪、戟叶鹅绒藤、西北天冬等。并发现一个新种:中戈壁黄耆;三个新变种:小苞中亚滨藜、密花碱蓬、戈壁旋复花学名均详见名录。更多还原

【Abstract】 Ejinaqi is located in desert centre of Central Asia, its zonal vegetaion is extreme desert. Large regions are gravel gobi, naked lofty hills and moving dunes, only a little of the region is covered with oasis. After having vestigated the region, we found that its flora is composed of 42 families, 119 genera and 189 species. Among them, there are 1 new species: Astragalus centralgobi- ticus Z.Y. Zhu et Y.Z. Zhao; 3 new varities: Atriplex centralasiatica Iljin vat. microbracteata Z.Y. Zhu, Suaeda glauca Bunge vat. conferiflora Z.Y. Zhu, Inula caspica Beum var. govica H.C. Fu et D.S. Wen. There are also some taxa of new distribution records: 1 family, 6 genera and ten spices.更多还原