Parrotia persica C.A.M. (Persian witch hazel, Persian ironwood) in the Mazovian (Holsteinian) interglacial of Poland

摘要

Palynological studies of Holsteinian lake sediments from the Podlasie region, eastern Poland, reveal a relatively abundant occurrence of Parrotia perxica pollen (Haraamelidaceae). This species, unknown in the late stage of Pleistocene in Poland, was noted in the climatic optimum. This is a new floristic element, which permits a more precise identification of climate changes and which may also be potentially useful as a stratigraphical tool in age determination to separate different interglacial. The similarity to other pollen types of Hamamelidaceae is discussed, and a provisional description for pollen identification of some related taxa provided.