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Ohne ZusammenfassungNebst einigen Kulturen von Bakterien und Moosen.  相似文献   

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Culture collection of algae and protozoa, botany school, University of Cambridge, England
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An initial accent on the investigation of megafossils by some well-known Austrian paleobotanists (like Ettinghausen, Stur, Unger) changed with time to a higher degree of research on the histology and anatomy of fossil plants, especially of wood and cuticles by the late E. Hofmann. Due to the large quantity of spores and pollen grains in peat, brown coal, salt rocks, phosphorites, clay and shales in Austria, the major topic of investigation at the present time is clearly devoted to palynology. Quaternary, Neogene and Permo-Triassic microfloras occupy the first place in research. Concerning the determination of pollen and morphologic studies of a selection of modern comparison species by all kinds of light and electron microscopy have been initiated to find out whether biospecific determination could be carried out in the Quaternary and Neogene. An example of pollen-morphological features within the genus Pinus is presented.The microflora of Upper Permian and Triassic sediments of the east Alpine salt rocks, their environment and inclusions receive comprehensive microphotographic documentation and will be backed from a stratigraphic point of view by sulphur-isotope investigations, which promise to be of great value in dating the Permo-Triassic boundary.  相似文献   

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