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Palynological characters of Glycyrrhiza,Glycyrrhizopsis,and Meristotropis(Leguminosae),with special reference to their taxonomic significance

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Journal of Systematics and Evolution 2010年第6期48卷 455-463页

作者： 1,2Lei MENG 2Xiang-Yun ZHU 1(College of Biological Sciences,China Agricultural University,Beijing 100094,China) 2(Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China) (College of Biological Sciences China Agricultural University Beijing 100094 China) (Institute of Botany Chinese Academy of Sciences Beijing 100093 China)

The pollen morphology of 11 species of the genus Glycyrrhiza *** one from each of the genera Glycyrrhizopsis Boiss.& *** Meristotropis Fisch.& *** investigated by scanning electron *** pollen morphology,the main differences between Glycyrrhizopsis and Glycyrrhiza are:Glycyrrhizopsis-pollen grains 36.63 × 40.42 μm in size,oblate spheroidal in shape;and Glycyrrhiza-pollen grains 24.47-33.18 × 23.82-31.83 μm in size,prolate spheroidal in *** and Glycyrrhiza should be recognized as two distinct genera based on palynological and morphological *** and Glycyrrhiza are similar in many important palynological and morphological characters,suggesting that the two should be *** Glycyrrhiza,two types of pollen grains,3-lobed-circular or subtriangular in polar view,are found in different species,in accordance with morphological differences in the two groups,shedding light on the classification and evolution of the genus.

关键词： exine sculpture morphological character pollen morphology taxonomic revision.

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Pollen morphology of the family Cistaceae in Egypt and its systematic significance

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Journal of Systematics and Evolution 2011年第4期49卷 362-371页

作者： Nasr M.HASSAN Botany Department Faculty of ScienceAssiut University

The pollen morphology of 11 species (including two subspecies and two varieties) belonging to two genera (Helianthemum and Fumana) of the family Cistaceae in Egypt was studied using light and scanning electron *** grains of the studied taxa were found to be radially symmetrical and *** size,shape,apertures,and exine ornamentation characteristics were valuable parameters among the studied *** largest pollen size was recorded in *** and the smallest one observed in *** ***- *** shape in the Egyptian taxa varied from (sub-)prolate to prolate spheroidal,but *** is different in having sub-oblate *** pollen data confirm that *** and *** are very closely related *** sculpture was useful in distinguishing between *** *** and *** *** main pollen types of exine ornamentation were recognized: retipilate;reticulate to verrucate;and *** on palynological data,a key for the studied taxa is suggested.

关键词： Cistaceae exine sculpture palynology scanning electron microscopy.

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