中国东北牻牛儿苗科（Geraniaceae）种子形态特征及其分类学意义  

SEED MORPHOLOGY OF GERANIACEAE IN NORTHEASTERN CHINA AND ITS TAXONOMIC SIGNIFICANCE

作　　者：陆兆华[1] 曹文钟 张玉兰 

机构地区：[1]东北林业大学,大庆市环保局,黑龙江省价格信息报社

出　　处：《植物研究》1995年第2期206-212,共7页Bulletin of Botanical Research

摘　　要：本文对中国东北牛儿苗科（Ｇｅｒａｎｉａｃｅａｅ）二属（太阳花属Ｅｒｏｄｉｕｍ，老鹳草属（Ｇｅｒａｎｉｕｍ）计１４种（ｓｐｅｃｉｅｓ）１变种（Ｖａｒｉｅｔｙ）和１变型（ｆｏｒｍ）植物的种皮亚显微结构（ＳＥＭ）及种子形态进行了研究．结果表明，太阳花属与老鹳草属植物无论从种子形状，长宽比，还是种皮初级雕纹及次级雕纹形态都表现出明显差异。在老鹤草属下种及种下等级的鉴定和划分上，种皮微形态及种子形态特征提供了大量有价值的信息。In this psper, the seed coat submorphology and seed morphology of Geraniaceae(2 genus.14 species 1 variety and 1 form) in Northeastem China were studied.the results show that there are many differences between genus Erodium and genus Geranium either seed-coat sculpture (primary and secondary sculpture) or seed morphology (seed shape.length/width ratio). Seed and seed-coat morphology provsde a lot of key information with taxonomy of genus Geranium.The present seed coat and seed morphological classificationis is in accordance with Kitagawa’s svstem of Geraniaceae,which was done using other morphological characters.

关 键 词：Mang牛儿苗科 亚显微结构 种子形态 分类学 

分 类 号：Q949.752.2[生物学—植物学]