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dot lichen

Scientific Name: Arthonia atrata

Family: Arthoniaceae

Category: Lichen

Growth: Lichenous

Duration:

Other Names:

       

Dot Lichen

The term "dot lichen" is a common name applied to lichens belonging to either the genus Arthonia or the genus Micarea. "Dotted lichens" may also refer to lichens in the genus Bacidia.

Considerations for Pets

  • Preserved lichen may be used in jewelry such as pendants.

Nomenclature and Taxonomy

  • Family: Arthoniaceae (for some dot lichens)
  • Kingdom: Fungi (Lichens)

Distribution and Habitat

  • Dot lichens are found in various locations, including Mount Rainier National Park (growing on rocks), New Orleans, and Bahia Honda Key, Florida (growing on palm tree bark).

Morphological Characteristics

  • Some dot lichens grow in small dots.
  • Mycobilimbia pilularis, a type of dot lichen, is crustose with a grayish-green thallus and yellowy-brown apothecia.
  • Dibaeis absoluta (Pink Dot Lichen) has pink apothecia born on short stalks.

Examples of Dot Lichens

  • Birchbark Dot Lichen (Leptorhaphis epidermidis, Leptorhaphis atomaria)
  • Orange Dot Lichen (Protoblastenia rupestris)
  • Hidden Dot Lichen (Japewia torrensis)
  • Frosty-rimmed Dot Lichen (Bacidia rubella)
  • Globe Dot Lichen (Micarea globulosella)
  • Dispersed Dot Lichen (Arthonia dispersa)
  • Tuckerman's Dot Lichen (Arthonia tuckermaniana)
  • Nitschke's Dot Lichen (Micarea nitschkeana)
  • Pink Dot Lichen (Dibaeis absoluta)
  • City Dot Lichen (Scoliciosporum chlorococcum)
  • Pale brownish yellow dot lichen (Biatora helvola)
  • Sulfur Firedot Lichen
  • Granite firedot lichen (Caloplaca arenaria)
  • Firedot lichen (Cliostomum griffithii)
  • Multicolored dot lichen

Interactions with Other Organisms

  • Dot lichen can grow on tree bark, such as palm trees.

Resources and Further Information

  • Encyclopedia of Life
  • Catalogue of Life
  • USDA
  • ResearchGate
  • Smithsonian Institution, National Museum of Natural History, Department of Botany
  • WikiSpecies
  • MO (likely Missouri Botanical Garden)
  • ToL (likely Tree of Life Web Project)
  • BHL (likely Biodiversity Heritage Library)