| Summary: | The paper is a survey of the wood-inhabiting basidiomycetes developing in an arctic area on trunks, branches and twigs of Salix glauca and Betula nana in Kangerlussuaq (West Greenland) and Sisimiut (Central West Greenland). Forty species were found, of which 10 are new to Greenland and 10 to the investigated areas. The species similarity ratio between the coastal Sisimiut and the continental Kangerlussuaq was low, 0,49, indicating a strong climatic influence on the distribution of these species. Of the 40 species 29 were corticioid fungi with a crust-like hymenophore, seven were agarics of which many were small and reduced species, two species belong to the jelly fungi and only one was a polypore.
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