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作 者 ：董连新;关雪莲

期 刊 ：植物研究 2009年 29卷 6期 页码：647-650

关键词：石竹属；花粉形态；扫描电镜；新疆；

Keywords:Dianthus, pollen morphology, SEM, Xinjiang,

摘 要 ：利用扫描电镜对8种石竹属（Dianthus）植物的花粉形态进行了观察。结果表明:本属植物花粉为单粒花粉,圆球形，大小为30.5~44.0 μm,具多个萌发孔,孔数为12~16个,分散，孔圆形，孔径4.1~7.0 μm，具孔膜，孔膜上着生有若干棵小刺，花粉外壁具刺状和穴状纹饰，表面有或无穿孔。研究表明：花粉大小、表面纹饰、特别是萌发孔的形态特征存在较明显差异。可为石竹属植物的分类及野生资源利用等相关研究提供了可靠的孢粉学参考。

Abstract:In the present study, the pollen morphology of eight species of Dianthus L. in Xinjiang was observed under the scanning electron microscope(SEM). In these species, the pollen grains are monad, spherical. The size of pollen grains ranges from 30.5 μm to 44.0 μm. The number of round aperture is 12 to 16. The diameter of aperture is from 4.0 μm to 7.0 μm, it has pore membrane with some thorns and exine of pollen with thorn-like and hole-like patterns, the surface with or without perforation. The size of pollen, exine ornamentation and characteristics of aperture are different to some extent among these different species. This shows their important taxonomic significances.

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