K. llimonae K. peltigerae K. tuberculosus Karsteniomyces is a genus of lichenicolous fungi of unknown familial, ordinal, and class placement in the Ascomycota.

[1] The genus was circumscribed by David Leslie Hawksworth in 1980.

[2] The species of this genus are found in Europe.

[1] The genus name of Karsteniomyces is in honour of Petter Adolf Karsten (1834–1917), who was a Finnish born mycologist.

[3] The genus was circumscribed by David Leslie Hawksworth in Bull.