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含笑属(木兰科)植物花粉形态及其系统学意义 |
张新华1,2, 夏念和1*
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1.中国科学院 华南植物园, 广州 510650;2.中国科学院 研究生院, 北京 100049
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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 |
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