| 摘要: |
| 利用扫描电子显微镜对含笑属12个分类群的花粉形态进行了观察和研究。花粉粒椭圆形,两侧对称,异极,具远极单萌发沟,中等大小; 形成一较为自然的分类群。虽然花粉粒的大小和表面雕纹不同种间具有一定的差异,但不足以为现有的属下分类系统提供足够的证据。 |
| 关键词: 含笑属 花粉形态 系统学意义 |
| DOI： |
| 分类号:Q944 |
| Fund project: |
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| Pollen morphology of Michelia and its systematic significance |
|
ZHANG Xin-Hua1,2, XIA Nian-He1*
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1.South China Botanical Garden, the Chinese Academy of Sciences, Guangzhou 510650,
China;2.Graduate School of Chinese Academy of Sciences, Beijing 100049, China
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| Abstract: |
| Pollen morphology of 12 taxa of Michelia was investigated with scanning electron microscopy(SEM). The pollen grains are bilateral symmetric,heteropolar,monocolpate,broadly elliptical in polar view,boad-shaped in equatorial view,and medium size. The genus is in a natural group. Some pollen morphological characters,such as the size and sculpture can be used to identify species in Michelia,but it has limit value in infrageneric classification of the genus. |
| Key words: Michelia pollen morphology systematic significance |
