Abstract
This paper documents the occurrence of the genus Umbilicaria in the neighbourhood of Admiralty Bay on King George Island in the maritime Antarctic. Nine species are reported from the area surveyed, with Umbilicaria kappeni being reported from King George Island for the first time. The occurrence of U. aprina, U. cristata and U. umbilicarioides on the island is confirmed and that of U. aprina is its first documented record from the maritime Antarctic. Fertile specimens of U. umbilicarioides are recorded for the first time from Antarctica. The area around Admiralty Bay seems to be one of the Antarctic regions with the highest diversity of Umbilicaria species. The diagnostic characters and distribution of each species are discussed. An updated key for identification of all the Antarctic species of the genus is provided.
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Acknowledgements
The authors would like to thank Leopoldo G. Sancho for taxonomic consultations, the curators of TSB, AAS and GZU herbaria for kindly lending us specimens of U. saviczii and U. thamnodes for study, Adam Wincenciak who took the photographs, and Lucyna Śliwa, Renata Malejki, Arthur Copping (Roydon, Diss, UK) and three anonymous reviewers for their valuable suggestions and constructive comments on the manuscript. The authors especially wish to thank Lucyna Śliwa whose inspiration and invaluable advice initiated and developed their interest in the fascinating world of lichens. The authors also owe thanks to Maria Olech for suggesting that they undertake Antarctic lichenological research and for her cooperation during their PhD studies. Special thanks are also due to all the XX and XXVI “Arctowski” expeditionary teams, particularly the leaders of those expeditions, Adam Barcikowski and Paweł Loro, for logistical aid and comradeship during field studies. The field survey was made possible by the logistical and financial support of the Department of Antarctic Biology, Polish Academy of Sciences. This work was also partly supported by the State Committee for Scientific Research grants nos. 6P04F01820 and 2P04F00127.
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Krzewicka, B., Smykla, J. The lichen genus Umbilicaria from the neighbourhood of Admiralty Bay (King George Island, maritime Antarctic), with a proposed new key to all Antarctic taxa. Polar Biol 28, 15–25 (2004). https://doi.org/10.1007/s00300-004-0638-9
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DOI: https://doi.org/10.1007/s00300-004-0638-9