摘要
本文应用扫描屯镜技术对鹅观草属、披碱草属以及冰草属植物的颖果进行了比较研究。研究结果表明,该三属植物果实的表面纹饰、顶端茸毛、脐以及宿存于颖果之上的鳞被的特征具有重要的分类学意义。本文资料支持将这三个属植物作为三个独立的属存在的观点。
Micromophological characters of the caryopses in three genera,namelyRoegneria C.Koch,Elymus L.,and Agropyron Gaertn,are shown to betaxonomically significant at generic level.These characters mainly areepidermal ornamentation,pubescence,navel,anb the attached paleola.The recognition of these genera as three separate genera is fully justifiedon the basis of information gathered with the halp of the scanning electron microscope(SEM).
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
1990年第4期30-37,共8页
Journal of Inner Mongolia Normal University(Natural Science Edition)
关键词
禾本科
冰草属
牧草
颖果
扫描电镜
Scanning eletron microscope
Caryoptes
Roegneria
Elymus.Agropyron
