Cercidospora stereocaulorum

Cercidospora stereocaulorum is a species of lichenicolous fungus in the genus Cercidospora but it has not been assigned to a family.[1] It is known to parasitise lichens of the genus Stereocaulon.[2]

Cercidospora stereocaulorum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Dothideomycetes
Order: Dothideales
Genus: Cercidospora
Species:
C. stereocaulorum
Binomial name
Cercidospora stereocaulorum
(Arnold) Hafellner (1987)
Synonyms
  • Leptosphaeria stereocaulorum Arnold
  • Metasphaeria stereocaulorum (Arnold) Sacc.
  • Sphaerulina stereocaulorum (Arnold) Anon.
  • Sphaerulina stereocaulorum (Arnold) Vou.

Similar species

Cercidospora stereocaulorum is very similar to Cercidospora punctillata and Cercidospora decolorella but they can be told apart from their spore biology and their host species. Cercidospora punctillata grows on various lichens, most commonly Solorina crocea and species of Peltigera. while Cercidospora decolorella grows on mosses. Cercidospora alpina also grows on species of Stereocaulon and can therefore be confused with Cercidospora stereocaulorum.[2]

Distribution

Cercidospora stereocaulorum has been reported from Alaska,[2] Canada,[2] Greenland,[2] Iceland,[3] Russia,[2] including Wrangel Island[2] and Svalbard.[2]

Host species and symptoms

It grows on phyllocladia, stems and occasionally cephalodia and old apothecia of its host species. It can induce gall-like swellings up to 1.5 mm in diamerter and the infected host tissues can become pinkish or slightly bleached. Infection does not induce any other known symptoms.[2]

Host species include:

References

  1. "Cercidospora stereocaulorum". Global Biodiversity Information Facility. Retrieved 12 July 2022.
  2. Zhurbenko, Mikhail P. (2010). "Lichenicolous fungi and lichens growing on Stereocaulon from the Holarctic, with a key to the known species" (PDF). Opuscula Philolichenum. 8: 9–39.
  3. Svane, Svanhildur Jónsdóttir; Alstrup, Vagn (2004). "Some lichenicolous fungi from Iceland" (PDF). Acta Botanica Islandica. 14: 53–58.


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