''Cladonia pyxidata'' or the pebbled cup lichen is a species of cup lichen in the family

Cladoniaceae The Cladoniaceae are a family of lichenized fungi in the order Lecanorales. It is one of the largest families of lichen-forming fungi, with about 560 species distributed amongst 17 genera. The reindeer moss and cup lichens (''Cladonia'') belong ...

. It is host to the

lichenicolous fungus A lichenicolous fungus is a parasitic fungus that only lives on lichen as the host. A lichenicolous fungus is not the same as the fungus that is the component of the lichen, which is known as a lichenized fungus. They are most commonly specific t ...

Lichenoconium pyxidatae ''Lichenoconium pyxidatae'' is a species of lichenicolous fungus belonging to the class Dothideomycetes. It has a Holarctic distribution being found in Alaska and various parts of Russia, including Siberia, Franz Josef Land, Novaya Zemlya and Wra ...

''.

References

pyxidata Lichen species Lichens described in 1753 Taxa named by Carl Linnaeus {{Lecanorales-stub