摘要
系统地列出了亚洲中部荒漠区的 13个植物特有属或近特有属———绵刺属、沙冬青属、四合木属、百花蒿属、革苞菊属、河西菊属、喀什菊属、紊蒿属、连蕊芥属、钝基草属、合头藜属、戈壁藜属、霸王属。这些属都是单种属或双种属 ,分类上属于孤立的类群 ;演化系统上是既起源古老而又进化的类群 ;生态上都是旱生植物 ,绝大多数是荒漠种 ,其生活型灌木和半灌木占优势 ;地理分布上阿拉善荒漠区是其特有属的分布中心 ;起源上是多元的。
This paper listed 13 endemic genera that belonged to the desert region of Central Asia systematically,such as Potaninia,Ammopiptan thus,Tetraena,Stilpnolepis,Tugarinovia,Zollikaferia,Kaschgaria,Elachanthemum,Syn stemon,Timouria,Sympegma,Iljinia and Sarcozygium .These monotypic or bitypi c genera are isolated in the taxonomy,ancient in origin and advanced in the evol utionary system;they are all xerophytes and most of them are desert species,whil e in their life forms shrubs and semi shrubs are superior in numbers.The origi ns of all the genera are polygenetic,but the owned a common distributional cente r in the desert region of Alashan.
出处
《云南植物研究》
CAS
CSCD
北大核心
2003年第2期113-121,122,共10页
Acta Botanica Yunnanica
基金
国家自然科学基金资助项目 (3986 0 0 0 8
39730 10 0 )
