中国梧桐科植物花粉类型的研究

用光学显微镜和扫描电镜,对中国梧桐科22属59种的花粉进行形态观察,根据其花粉萌发孔的数目、形状、位置和花粉表面纹饰等,可以将它的花粉分为12个花粉类型:1.苹婆类型(Sterculia—type)、2.银叶树类型(Heritiera—type)、3.蛇婆子类型(Waltheria—type)、4.梭罗树类型(Reevesia—type)、5.滇桐类型(Craigia—type)、6.昂天莲类型(Ambroma—type)、7.刺果藤类型(Byttneria—type)、8.午时花类型(Pentapetes—type)、9.翅子树类型(Pterospermum—type)、10.山芝麻类型(Helicteres—type)、11.鹧鸪麻类型(Kleinhovia—type)、12.灾绳树类型(Eriola-ena—type)。本文从花粉学的观点,对中国梧桐树花粉类型的划分进行讨论。

THE POLLEN TYPE IN CHINESE STERCULIACEAE

The pollen morphology of 59 species belonging to 22 genera of Sterculiaceae in China was studied by LM and SEM.Based on the number,shape and position of the aperture as well as its ornamentation they may be grouped into twelve pollen types;1.Sterculia-type,2.Heritiera-type,3.Waltheria-type,4.Ree-vesia-type,6.Craigia-type,e.Ambroma-type,7.Byttneria-type,8.Dombeya-type,9.Pterospermum-type,10.Helicteres-type 11.Kleinhovia-type and 12.Eriolaena-type.According to the point of view of Palynology,the division of pollen types in Chinese Sterculiaceae is discussed in this paper.