作　　者： ; ; ; ; ;

机构地区： 中山大学生命科学学院

出　　处： 《云南植物研究》 2002年第5期619-626,共8页

摘　　要： 在前人研究的基础上 ,利用光学显微镜和扫描电镜观察了山茶属 17个组 34个代表种(含变种 )的花粉形态 ;按照韦仲新划分山茶属花粉类型的标准 ,对其进行归类 ,所有花粉分为 3类 :颗粒状至皱颗粒状纹饰、皱沟状纹饰和穴 -网状纹饰 ;发现 1种新的花粉类型 :拟穴 -网状纹饰。 Pollen morphology of 34 species (including 2 varieties) representing 17 sections of Camellia was examined under light microscope (LM) and scanning electronic microscope (SEM) in this paper. The pollen grains are classified according to the standard of Wei Zhongxin, they belonging to 3 types: granulate to rugulate granulate,rugulate fossulate, foveolate reticulate.A new pollen type, i e. false foveolate reticulate, was found and named.Generally speaking, the sculpture difference of various sections is not necessarily larger than that of the same section, for example, in section Paracamellia,the sculpture varies very much from rugulate fossulate to false foveolate reticulate, and then to foveolate reticulate.Showing that it is difficult to elucidate the systematical relationships between different sections by the sculpture of pollen exine surface. Some classification problems of Camellia were probed into preliminarily too.

关 键 词： 山茶属 花粉外壁 表面微形态特征 分类

领　　域： [生物学] [生物学]