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eggyolk lichen
Scientific Name: Candelariella xanthostigma
Family: Candelariaceae
Category: Lichen
Growth: Lichenous
Duration:
Other Names:
Eggyolk Lichen (Candelariella spp.)
Eggyolk lichens, belonging to the genus Candelariella, are a group of lichens known for their distinctive yellow color. They are commonly found clinging to rocks, bark, or old wood.
Considerations for Pets
- The text mentions that some Candelariella species have a thallus consisting of minute granules (up to 0.1mm).
Scientific Classification
- Scientific Name: Candelariella (genus)
- Family: Lecanoraceae or Candelariaceae (depending on the species/classification)
- Rank: Genus, Species (various species listed)
- Synonyms/Common Names: Eggyolk lichen, goldspeck lichen, yolk lichen, common goldspeck lichen.
- Examples of Species: Candelariella aurella (Hidden goldspeck lichen), Candelariella rosulans, Candelariella vitellina (Egg-yolk Lichen, Common Goldspeck Lichen), Candelariella arctica (Arctic Eggyolk Lichen), Candelariella athallina, Candelariella spraguei (Sprague's Eggyolk Lichen), Candelariella efflorescens, Candelariella subdeflexa, Candelariella xanthostigma, Candelariella deflexa (Deflexed Eggyolk Lichen), Candelariella dispersa (Dispersed Eggyolk Lichen)
Distribution and Habitat
- Commonly found on calcareous surfaces, rocks, bark, and old wood.
- Mentioned in Michigan, Waterloo, Molonglo Gorge, and Chiricahua National Monument.
Morphological Characteristics
- Crustose or squamulose lichens.
- Typically exhibit a bright yellow color, resembling an egg yolk.
- Some species, like Candelariella xanthostigma, have a thallus consisting of minute granules (up to 0.1mm).
Ecological Role and Interesting Facts
- Some species of Candelariella, such as Candelariella vitellina, have moderate pollution tolerance and can indicate mediocre air quality.
- One reference indicates that a colony can take up to 100 years to reach the diameter of a fried egg yolk.
- The lichen may appear a different color under black light.
Interactions with Other Organisms
- Nitrogen is crucial for the survival of this lichen, and is typically thrives under each.
Quirky Facts
- Some chefs have used lichens, including potentially Candelariella, in crispy lichen dishes.
- Candelariella species have been considered as inspiration for cartoon characters.
- Calycin is an egg-yolk yellow pigment found in Candelariella.
Further Information
- Catalogue of Life: 2012 Annual Checklist
- APHOTOFUNGI - Photographic Stock Library