绢蒿属8种植物果实微形态特征及其分类学意义  

A Micro-morphological Study on Fruit of 8 Species in Seriphidium and Its Taxonomic Significance

作　　者：孙会忠[1] 宋月芹[1] 贺学礼[2] 

机构地区：[1]河南科技大学农学院,河南洛阳471003 [2]西北农林科技大学生命科学学院,陕西杨凌712100

出　　处：《武汉植物学研究》2007年第5期440-444,共5页Journal of Wuhan Botanical Research

基　　金：国家自然科学基金资助项目(30470133)

摘　　要：为寻找绢蒿属系统学的新证据,应用解剖镜和扫描电镜对我国8种绢蒿属植物的果实微形态特征进行了比较观察。结果表明,绢蒿属8种植物果实形状相似性较高,呈倒卵形或长倒卵形,直或稍弯曲;果脐圆形,常偏向一侧;顶端中央均可见花柱残留物,边缘具衣领状环;果实表面纹饰为搓板状和不规则皱褶纹饰。这些果实微形态特征中,果实的表面纹饰具有一定的差异,特别是次级结构,可作为绢蒿属植物区分种的参考性状之一。To discuss the systematic problem of Seriphidium（Bess） Poljak.,the micro-morphological features on fruit of 8 species in China were observed under light microscope（LM） and scanning electron microscope（SEM） for the first time.The results show that the shape of most fruit was inversely-ovate or lengthened inversely-ovate;the hilum was round,which located top beside of fruit;there was a collar-ring on the top of fruit,and there were many remainder from style in central of collar-ring;the surfaces of fruit have washboard-form and obviously fold ornamentation.The surface micro-morphology were different to some extent between species,which can be used to classify of Seriphidium（Bess） Poljak.

关 键 词：绢蒿属 果实 微形态 分类学意义 

分 类 号：Q944.59[生物学—植物学] Q949