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disc lichen

Scientific Name: Buellia calcariaecola

Family: Physciaceae

Category: Lichen

Growth: Lichenous

Duration:

Other Names:

       

Disc Lichens (Genus Buellia)

Lichens in the genus Buellia are commonly referred to as disc lichens or button lichens. The term "disc lichen" references their distinct, often disc-shaped apothecia (fruiting bodies).

Considerations for Pets

  • Some sources mention the presence of "necrotic thalline material (thalline veil)" associated with disc lichens.
  • Descriptions indicate apothecia can be small and disc-shaped.

Considerations for Children

  • Descriptions indicate apothecia can be small and disc-shaped.

Taxonomy and Nomenclature

  • Scientific Name: Buellia De Not.
  • Common Names: Disc Lichen, Button Lichen, Common Button Lichen, Black Disc Lichen
  • Family: Physciaceae
  • Synonyms: Buelliopsis papillata

Distribution and Habitat

  • The genus Buellia has a widespread distribution.
  • Specific locations mentioned include Howard County, the Diamond Coast, Chiricahua National Monument, South Glenmore Park, and England.

Morphological Characteristics

  • Apothecia (fruiting bodies) are typically disc- or cup-shaped and involved in sexual reproduction, producing fungal spores used for lichen identification.
  • Discs can be black and epruinose (lacking a powdery surface coating) or yellow.
  • Thallus (the main body of the lichen) can be crustose (tightly attached to the substrate).

Quirky Facts

  • One reference shows a "Captive Lichen Disc rotating!" but clarifies it's actually a pattern from a dragonfly wing.
  • The Downs hosted a lichen trail funded by various organizations, including the British Lichen Society.
  • "Wendy Mode DK 50g - Lichen (234) DISC" is mentioned as a wool-rich yarn with Merino.

Interactions with Other Organisms

  • Disc lichens can grow on trees, such as poplar trees.
  • Reindeer lichen species are mentioned in the context of clear-cut forestry and soil preparation.

Antimicrobial Activity

  • Extracts from some lichens, including those tested in acetone, methanol, and chloroform, may exhibit antifungal effects.

Further Information

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