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disc lichen

Scientific Name: Buellia modesta

Family: Physciaceae

Category: Lichen

Growth: Lichenous

Duration:

Other Names:

       

Disc Lichens (Genus Buellia)

Disc lichens, also known as button lichens, belong to the genus Buellia. This genus is characterized by its widespread distribution and includes approximately 450 species.

Considerations for Pets

  • The text mentions that some disc lichens contain necrotic thalline material.

Considerations for Children

  • Some disc lichens are small and disc-shaped, which could be a choking hazard for young children.

Taxonomy and Nomenclature

  • Scientific Name: Buellia (genus)
  • Common Names: Disc lichen, Button lichen
  • Family: Physciaceae (for at least one species, Buellia nigra)
  • Synonyms: Buelliopsis (e.g., Buelliopsis papillata is a synonym for Buellia papillata)
  • Symbol: BUELL

Distribution and Habitat

  • The genus has a widespread distribution.
  • Observed on the Diamond Coast (South Africa).
  • Found in Chiricahua National Monument.
  • Observed growing on a live poplar tree in South Glenmore Park.

Morphological Characteristics and Growth Habits

  • Characterized by disc-shaped apothecia, which are fruiting bodies involved in sexual reproduction. These apothecia produce fungal spores and are used in lichen identification.
  • Apothecia are variable in shape but commonly disc- or saucer-shaped.
  • The "disc" refers to the disc-shaped apothecia, the spore-producing structures.
  • Growth forms are generally shaped like a disc, usually with a rim around the edge.
  • Some species feature yellow, disc-shaped apothecia.
  • Some species have apothecia with concealed discs.

Interactions with Other Organisms

  • Reindeer lichen species are affected by soil preparation techniques in Pinus-lichen clear-cuts.
  • The text mentions instances of lichens growing on live poplar trees.

Traditional Uses

  • The text mentions the lichen extracts have potential antifungal effect and may be useful medicinally.

Quirky Facts

  • The website lichen-disc.com.tw is a real site but is not related to Lichens.

Resources and Further Information

  • Catalogue of Life: 2012 Annual Checklist
  • British Lichen Society - BLS Lichen Database