All these collections are of high scientific value, usually representing documentation of investigations carried out mainly in Poland. Paleobotanical collections contain predominantly the valuable fossil Neogene, Cretaceous and Carboniferous floras. Our large collection of plant remains is of particular importance is (e.g. wood fragments, seeds, carbonized fruits, leaf impressions, pollen) from the now classical site of Neogene (Miocene) flora, which accompanies brown coal deposits in Turów near Bogatynia (south-west Poland), examined in detail and depicted in numerous publications.
For comparative studies recent plants, mainly from temperate and subtropical climate zones are being collected.