Scutula stereocaulorum can use lichens of the genus Stereocaulon as hosts.[2] It is very common[3] and so far the following host species have been recorded:
^Zhurbenko, Mikhail P.; Triebel, Dagmar (2008). "Three new species of Stigmidium and Sphaerellothecium (lichenicolous ascomycetes) on Stereocaulon". Mycological Progress. 7: 137–145.
^Hagen, Asbjørn (1950). Notes on Arctic fungi(PDF) (Report). Skrifter. Vol. 93. Oslo: Norsk Polarinstitutt.
^Zhurbenko, Mikhail; Santesson, Rolf (1996). "Lichenicolous fungi from the Russian Arctic". Herzogia. 12: 147–161.