Springer Iranian Journal of Science and Technology (Sciences) 1028-6276 32 2 2008 06 01 POLLEN MORPHOLOGY OF THE GENUS MALUS (ROSACEAE) 89 97 2246 10.22099/ijsts.2008.2246 EN V. NAZERI JONEGHANI Department of Horticultural Science, Faculty of Agriculture, University of Tehran, I. R. of Iran Journal Article 2006 09 16 Pollen morphology of some species of the genus Malus (Rosaceae) was investigated<br />taxonomically. All species are characteristic by tricolpate pollens. Exine sculpturing is variable but is mostly<br />striate. However, species may differ in degree of density of ridges and their orientation. The exine patterns in<br />M. trilobata and M. florentina are very similar and were characterized by short and very branched ridges.<br />These show clear differences from other species, which have pollen grains with long and unbranched or<br />slightly branched ridges. https://ijsts.shirazu.ac.ir/article_2246_ecf51e973d63fd01eab7cf075c276267.pdf