University of Isfahan Taxonomy and Biosystematics 3115-9001 1 1 2009 12 22 Pollen morphology of the Onobrychis sect. Heliobrychis in Iran مطالعه ریخت‌شناسی گرده در جنسMiller (Sect. Heliobrychis) Onobrychis در ایران 63 72 17360 EN Roya Karamian Department of Biology, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran Ali Moradi Behjou Department of Biology, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran Massoud Ranjbar Department of Biology, Faculty of Science, Bu-Ali Sina University, Hamedan, Iran Journal Article 2016 06 14 Pollen morphology of 20 species belonging to Onobrychis sect. Heliobrychis was studied in Iran. The pollen grains from the herbarium specimens were prepared by acetolysis method and then 8 quantitative characters were studied by light microscopy. Data analysis was carried out by cluster analysis and principal component analysis methods. Pollen grains of the sections were 3-colpate with reticulate ornamentation. Results of the study showed that although the pollen grains in the section were comparatively homogenous, but had a considerable variation in the studied quantitative characters. However among the studied characters, equatorial and polar diameters of pollen grains were the most significant characters. The members of the section can be divided into 3 groups based on these characters. https://tbj.ui.ac.ir/article_17360_369979a39617e919a353d8c21ddb952c.pdf