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首页> 外文期刊>植物研究雑誌 >Systematic Significance of Pollen Morphology in Clausena (Rutaceae) from China
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Systematic Significance of Pollen Morphology in Clausena (Rutaceae) from China

机译：中国克劳森娜（芸苔科）花粉形态学的系统意义

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摘要

Clausena is the most widely distributed genus in the subfamily Aurantioideae of the family Rutaceae. Morphological features of pollen grains from10 species and two varieties of Clausena in China were examined using scanning electron microscopy (SEM).The pollen grains are small to medium in size and subprolate in shape, with a few being prolate. The apertures are usually 3-colporate, except one species (C. lansium) being 3- or 4-colporate. The morphology of the pollen grains shows significant variation in the exine ornamentation, viz. striato-reticulate, striate, rugulo-reticulate or striato-perforate. Five species and two varieties, viz. C. anisum-olens, C. dunniana van dunniana, C. excavata var. excavata, C. inolida, C. lansium, C. odorata and C.vestita commonly show the exine ornamentation of striato-reticulate type, but the width of murus and lumen vary between species. C. lenis and C. yunnanensis have the rugulo-reticulate exine ornamentation while C. excavata var. quadrangulata and C. dunniana var. robusta with C. emarginata are characterized with striate and striato-perforate exine ornamentation respectively. Clausena is eurypalynous and the pollen characteristics appear to be informative and useful for distinguishing species and for elucidating the relationships among some species.
机译：克劳塞娜（Clausena）是芸香科（Rutaceae）的金刚亚科（Aurantioideae）中分布最广的属。应用扫描电子显微镜（SEM）观察了中国10个种和2个克劳森纳（Clausena）变种的花粉粒的形态特征。花粉粒大小中等至中等，呈近扁平状，少数为扁平状。孔通常是3-孔的，除了一种（C.镧）是3-孔的或4-孔的。花粉粒的形态显示外在装饰的显着变化，即。纹状网状，条纹状，皱纹状网状或纹状穿孔。五种和两个变种，即。 C. anisum-olens，C。dunniana van dunniana，C。excavata var。露齿果，C。inolida，C。lansium，C。odorata和C.vestita通常显示出纹状网状的外在点缀，但在物种之间，斑rus和管腔的宽度不同。 lenis和C. yunisensis具有皱纹网状外壁装饰，而C. excavata var。 Quadrangulata和C. dunniana var。罗汉果与C. emarginata分别具有纹状和纹状穿孔的外壁装饰。克劳塞娜（Clausena）属雌性，具有花粉特征，对区分物种和阐明某些物种之间的关系很有帮助。

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