【摘要】 本文报告国产无患子科植物17属21种花粉形态的研究结果,包括属种形态特征的叙述,附有照相及不同类型花粉的绘图,根据花粉形态特征,作成属的检索表。无患子科花粉大多数为扁球形,少数为近球形或长球形。极面观为三角形,赤道面观为椭圆形—圆形。具(2-)3沟孔,少数具3孔无沟。沟一般分离,少数形成合沟。花粉单粒,个别的属为四合花粉(Magonia)。外壁一般具纲状或条纹状雕纹,少数具刺或几乎光滑。根据文献及研究所得的资料,我们得出结论:无患子科花粉形态的特征,基本上与分类上的分族系统是相符合的;属间的区别一般比较显著,种间的区别很少。可是现有的花粉资料仅占本科属的总数的1/5,因此关子花粉形态与分类系统的关系,尚有待于更多资料的积累,才可能得出比较全面的结论。更多还原

【Abstract】 The present paper considers the pollen grain morphology of 21 species in 17 genera belonging to Sapindaceae from Southern China.They are:Allophyllus (2 spp.),Aphania (1),Arytera (1),Amesiodendron (1),Cardiospermum (1),Delavaya (1),Dodonaea (1),Eurycorymbus (2),Erioglossum (1),Eupporia (1),Harpullia (1),Koelreuteria (3),Litchi (1),Mischocarpus (1),Pometia (1),Sapindus (1) and Xanthoceras (1).The morphological description and microphoto of the grain for each species and the drawings of the different types of the grains within the family are given.Key to genera is also given. The pollen grains of Sapindaceae are usually oblate,less often spheroid or prolate;triangular in polar view and oval to spheroid in equitorial view;usually 3(-4) colporate,less frequently 3(-4) porate;rarely syncolpate;united in tetrad in Magonia (Erdtman).Exine is usually reticulate or striate,less often spinulose or nearly psilate. Based upon the data available,we may draw the following conclusions:the pollen morphology fundamentally agrees with the division of the tribes (Radlkofer) with a few exceptions;the palynological characteristics among the genera are usually distinct.As basis for general consideration of systematics of Sapindaceae the present data of pollen morphology are,however,still insufficient since only about 1/5 genera have been studied in palynological respect.更多还原