摘要
应用光学显微镜和扫描电镜对我国木犀科54种植物的花粉形态进行了系统的观察研究。作者在已论述了4属25种植物花粉形态研究结果基础上,本文着重阐述木犀属(Osmanthus)、李榄属(Linociera)、木犀榄属(Olea)、流苏树属(chionanthus)、胶核木属(Myxopyrum)、女贞属(Ligustrum)、茉莉属(Jasminum)和夜花属(Nyctanthus)共29种植物花粉形态及其分类学意义。结果表明,3(拟)孔沟花粉是基本的、原始类型;4,5孔沟花粉是变异的、进化类型。在变异程度大、较进化的类群中,花粉性状具多样化发展趋势。本文同时讨论了李榄属与流苏树属的分并问题。
A comparative study on the pollen grains of the Chinese Oleaceae 12 genera, 54 species was carried out by means of scanning electron microscope and light microscope. After the writer had described the pollen morphology of 4 genera, 25 species (Fraxinus, Fontanesia and Forsythia, Syringa), this paper discussed the pollen morphology and its taxonomic significance of 8 genera, 29 species (Osmanthus, Linociera, Olea, Chionanthus, Myxopyrum, Ligustrum, Jasminum and Nyctanthus). The evidence demonstrated:1) 3—colporate was the basic and original iype of the pollen grain; 4, 5—colpo- rate is the variable and evolutionary type; 2) Among the taxonomic groups with greater variability and evolution, the pollen characters showed a tendency towards various development) 3) According to the pollen morphology, it would be reasonable to treat Linociera and Chionanthus as two independent genera.
