Abstract
The exine architecture and some quantitative parameters (polar and equatorial axes and their ratio) of pollen grains allow a clear discrimination between groups of Mediterranean oak species. For the differentiation of species within groups only the quoted parameters prove useful.
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Colombo, P.M., Lorenzoni, F.C. & Grigoletto, F. Pollen grain morphology supports the taxonomical discrimination of Mediterranean oaks (Quercus, Fagaceae). Pl Syst Evol 141, 273–284 (1983). https://doi.org/10.1007/BF00989007
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DOI: https://doi.org/10.1007/BF00989007