Stereocaulon paschale
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Lecanorales
Family: Stereocaulaceae
Genus: Stereocaulon
Species:
S. paschale
Binomial name
Stereocaulon paschale
(L.) Hoffm. (1796)
Synonyms
  • Lichen paschalis L. (1753)

Stereocaulon paschale is a species of lichen belonging to the family Stereocaulaceae.[1]

It has a cosmopolitan distribution.[1]

In Iceland, it has the conservation status of a vulnerable species (VU).[2]

Ecology

Stereocaulon paschale is host to some lichenicolous fungi which infect various parts of the thallus. Most of these fungi have a Holarctic distribution. These fungi include:[3]

  • Arthonia stereocaulina, Infects the phyllocladia but rarely causes disease.
  • Catillaria stereocaulorum, Mainly infects the phyllocladia, which can become swollen and dark. It is common in the Arctic.
  • Cercidospora stereocaulorum, Infects phyllocladia and sometimes on stems, cephalodia and apothecia.
  • Endococcus nanellus, Infects phyllocladia and sometimes on stems, cephalodia and apothecia. Often found in discolored apothecia but does probably not cause the discoloration.
  • Lasiosphaeriopsis stereocaulicola, Usually found at the stem base which can turn brown but no other symptoms are known.
  • Lichenopeltella stereocaulorum, Most often found on stems. This species was only discovered in 2010.
  • Opegrapha stereocaulicola, Infects stems which may become darker.
  • Phaeosporobolus alpinus, Commensal. Most commonly found on species of Pertusaria or Ochrolechia.
  • Polycoccum trypethelioides, Produces galls on stem which change colour with time turning cinnamon colour or brown.

References

  1. 1 2 "Stereocaulon paschale (L.) Hoffm". www.gbif.org. Retrieved 12 February 2021.
  2. ↑ Náttúrufræðistofnun Íslands [Icelandic Institute of Natural History] (1996). Válisti 1: Plöntur. (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands.
  3. ↑ 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.


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