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eggyolk lichen

Scientific Name: Candelariella subdeflexa

Family: Candelariaceae

Category: Lichen

Growth: Lichenous

Duration:

Other Names:

       

Candelariella: The Eggyolk Lichen

Candelariella is a genus of crustose or squamulose lichens belonging to the Lecanoraceae family. These lichens are commonly referred to as eggyolk lichens, goldspeck lichens, or yolk lichens due to their vibrant yellow color.

Considerations for Pets

  • Some Candelariella species are crustose lichens consisting of minute granules.

Taxonomy and Nomenclature

  • Scientific Name: Candelariella
  • Common Names: Eggyolk lichen, Goldspeck lichen, Yolk lichen
  • Family: Lecanoraceae (and sometimes Candelariaceae)
  • Rank: Genus
  • Synonyms: Citrina, Lutella
  • Examples of Species:
    • Candelariella aurella (Hidden goldspeck lichen, eggyolk lichen)
    • Candelariella rosulans (Egg Yolk Lichen)
    • Candelariella vitellina (Egg-yolk Lichen, Common Goldspeck Lichen)
    • Candelariella arctica (Arctic Eggyolk Lichen)
    • Candelariella athallina (Eggyolk Lichen)
    • Candelariella spraguei (Sprague's eggyolk lichen)
    • Candelariella subdeflexa (eggyolk lichen)
    • Candelariella xanthostigma ('Eggyolk Lichen')
    • Candelariella deflexa (deflexed eggyolk lichen)
    • Candelariella dispersa (dispersed eggyolk lichen)
    • Candelariella reflexa

Distribution and Habitat

  • Candelariella lichens are found growing on various substrates, including rocks, bark, and old wood.
  • Candelariella vitellina is a common lichen in Michigan, often found on rock, bark, or old wood.
  • Candelariella vitellina is also noted as native to Waterloo.
  • Candelariella aurella is commonly found on calcareous surfaces.

Morphological Characteristics

  • Candelariella species are crustose or squamulose, meaning they form a crust-like or scale-like growth on their substrate.
  • The thallus (body) of some Candelariella xanthostigma consists of minute granules, up to 0.1mm in size.

Ecological Role

  • Candelariella vitellina has a moderate pollution tolerance and indicates mediocre air quality.
  • These lichens often thrive under nitrogen-rich conditions.

Quirky Facts

  • Some Candelariella colonies take approximately 100 years to reach the diameter of a fried egg yolk.
  • Under black light, bone-white lichen may appear a startling egg-yolk yellow.

Interactions with Other Organisms

  • Candelariella lichens can be found in association with various other organisms, including mosses and fungi.