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petractis

Scientific Name: Petractis

Family: Stictidaceae

Category: Lichen

Growth:

Duration:

Other Names:

       

Petractis: A Genus of Lichen-Forming Fungi

Petractis is a genus of lichen-forming fungi belonging to the family Stictidaceae within the Ascomycota phylum. These organisms, often found growing on rocks and other surfaces, contribute to the biodiversity of various ecosystems.

Considerations for Pets

  • Some Petractis species grow on rocks or tree bark which could present a hazard to pets if ingested.

Taxonomy and Nomenclature

  • Genus: Petractis Fr.
  • Family: Stictidaceae
  • Kingdom: Fungi
  • Phylum: Ascomycota
  • Class: Ascomycetes
  • Order: Ostropales
  • Synonyms: Some species have been previously classified under different genera. For example, Petractis clausa has synonyms such as Gyalecta exanthematica, Lecidea exanthematica, Petractis exanthematica, and Thelotrema clausum.

Species within Petractis

  • Petractis clausa (Hoffm.) Kremp.
  • Petractis farlowii (Tuck. ex Nyl.) Vezda. - Common name: Farlow's petractis
  • Petractis hypoleuca (Ach.) V&#283zda.
  • Petractis nodispora Orange ined.
  • Petractis exanthematica (Sm.) Fr.
  • Petractis luetkemuelleri (Zahlbr.)

Distribution and Habitat

  • Petractis species are found in various regions, including Britain, Ireland, and the Aegean.
  • Specific occurrences have been documented in England.
  • Some species, like Petractis clausa, have been observed in France.

Ecology

  • Certain Petractis species, such as Petractis clausa, can be endolithic, growing within rocks. Studies have examined their gas exchange rates in comparison to epilithic species.

Further Information

  • Index Fungorum: http://www.indexfungorum.org/names/NamesRecord.asp?RecordID=3848
  • EOL (Encyclopedia of Life): Check EOL for more information about Petractis clausa.
  • GBIF (Global Biodiversity Information Facility): Check GBIF for more information about Petractis.
  • Discover Life: http://www.discoverlife.org/mp/20q?search=Petractis+farlowii