Sphaerellothecium stereocaulorum is a species of lichenicolous fungus in the Phyllachoraceae family.
Distribution Sphaerellothecium stereocaulorum has been found in Alaska, Canada, Greenland and Iceland.
Host species and symptoms Sphaerellothecium stereocaulorum is known to infect Stereocaulon arcticum and the naked stems of Stereocaulon groenlandicum and Stereocaulon rivulorum.
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