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dot lichen
Scientific Name: Arthonia dispersula
Family: Arthoniaceae
Category: Lichen
Growth: Lichenous
Duration:
Other Names:
Dot Lichen
The term "Dot Lichen" is a common name applied to lichens belonging to the genera Arthonia or Micarea. Lichens in the genus Bacidia are referred to as "Dotted Lichens." This common name reflects their appearance, often characterized by small, dot-like structures on various surfaces.
Considerations for Pets
- Some lichens grow on tree bark and rocks, which may be accessible to pets.
Taxonomy and Nomenclature
- Group: Lichen
- Family: Arthoniaceae
Distribution and Habitat
- Dot lichens can be found in various locations, including:
- New Orleans area
- Mt. Rainier National Park (growing on rocks)
- Bahia Honda Key, Florida (growing on palm tree bark)
Morphological Characteristics
- Mycobilimbia pilularis, a type of dot lichen, is described as a crustose lichen with a grayish green thallus and yellowy brown apothecia.
- DIBAEIS ABSOLUTA (Pink Dot Lichen) features pink apothecia on short stalks.
- Dot lichens often appear as small dots on rocks and tree bark.
- Speckled Shield Lichens, Punctelia bolliana, are grey foliose lichens with tiny white dots and lobules.
Examples of Dot Lichen Species
- Arthonia arthonioides (Dot Lichen)
- Arthonia asteriscus (Dot Lichen)
- Arthonia dispersa (Dispersed Dot Lichen)
- Arthonia tuckermaniana (Tuckerman's Dot Lichen)
- Arthonia glebosa (Dot Lichen)
- Micarea nitschkeana (Nitschke's Dot Lichen)
- Dibaeis absoluta (Pink Dot Lichen)
Other Lichen Species Mentioned
- Protoblastenia rupestris (Orange Dot Lichen)
- Japewia torrensis (Hidden Dot Lichen)
- Bacidia rubella (Frosty-rimmed Dot Lichen)
- Scoliciosporum chlorococcum (City Dot Lichen, Syn. Bacidia chlorococca)