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dot lichen
Scientific Name: Arthonia hamamelidis
Family: Arthoniaceae
Category: Lichen
Growth: Lichenous
Duration:
Other Names:
Dot Lichen: An Overview
The common name "Dot Lichen" refers to lichens found within the genera Arthonia or Micarea. "Dotted lichens" are associated with lichens in the genus Bacidia. It is important to note that the common name for a lichen genus can sometimes be the same as the scientific name.
Considerations for Pets
- Lichens can grow on rocks, trees, and other surfaces in both natural and urban environments, potentially exposing pets during outdoor activities.
Taxonomy and Nomenclature
- Group: Lichen
- Family: Arthoniaceae, Icmadophilaceae
- Examples:
- Arthonia arthonioides (Ach.) A.L. Sm. - Dot Lichen
- Arthonia asteriscus Mll. Arg. - Dot Lichen
- Dibaeis absoluta (Tuck.) Kalb & Gierl - Pink Dot Lichen
- Scoliciosporum chlorococcum - City Dot Lichen
- Synonym: Bacidia chlorococca
Distribution and Habitat
- One source notes abundance in the New Orleans area.
- Observed growing on rocks in Mt. Rainier National Park and on Palm tree bark in Bahia Honda Key, Florida, USA.
Morphological Characteristics
- Mycobilimbia pilularis is described as a crustose lichen with a grayish green thallus without soredia or isidia and yellowy brown biatorine, convex apothecia.
- DIBAEIS ABSOLUTA (Tuck.) Kalb & Gierl. has pink apothecia born on very short (ca. 1 mm) stalks.
Interactions with Other Organisms
- The text mentions lichens clinging to surfaces.
Resources and Further Information
- Encyclopedia of Life
- Catalogue of Life: 2012 Annual Checklist
- MO (potentially Missouri Botanical Garden)
- ToL (Tree of Life Web Project)
- BHL (Biodiversity Heritage Library)
- WikiSpecies
- Smithsonian Institution, National Museum of Natural History, Department of Botany
- USDA
- ResearchGate