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rimmed lichen

Scientific Name: Aspicilia laxula

Family: Hymeneliaceae

Category: Lichen

Growth: Lichenous

Duration:

Other Names:

       

Rimmed Lichen: A Closer Look

This page provides information about various lichens known as "rimmed lichens," particularly those belonging to the genus Aspicilia, and also mentions Rhizoplaca.

Considerations for Pets

  • Some information mentions wirework cloches used to protect plants from deer, rabbits, squirrels, and birds. Consider the potential hazards of these cloches to pets, especially if they have sharp edges or small parts that could be ingested.

Scientific Classification and Nomenclature

  • Genus: Aspicilia A. Massal.
  • Family: Hymeneliaceae
  • Group: Lichen
  • Synonyms:
    • Lecanora reptans (for Aspicilia reptans)
    • Lecanora ryrkaipiae (for Aspicilia reptans)

Common Names

  • Rimmed Lichen
  • Calcareous Rimmed Lichen (Aspicilia calcarea)
  • Contorted Rimmed Lichen (Aspicilia contorta)
  • Rimmed Navel Lichens (Rhizoplaca species)
  • Mealy-rimmed Shingle Lichen (Pannaria conoplea)
  • Old Wood Rimmed Lichen (Lecanactis salicina)
  • Gray-rimmed Firedot Lichen (Caloplaca cerina)
  • Rimmed Cobblestone Lichen (Acarospora glaucocarpa)
  • Concentric Ring Lichen (Arctoparmelia centrifuga)

Distribution and Habitat

  • Found on limestone rock, particularly Aspicilia calcarea.
  • Observed in various locations including Ireland, Sagehen Creek Basin (California), the valley of the Dry Frio River, New Hampshire, Olonne-sur-Mer (France), and d'Ossoue in the Pyrenees.
  • Rhizoplaca species are found on rocks atop Lookout Mountain, Ochoco National Forest.

Morphological Characteristics

  • Leafy lichens with a jelly-like thallus when wet, which shrinks and becomes strongly wrinkled.
  • Rhizoplaca members are called rimmed navel lichens because of their appearance.
  • Crustose lichens are characterized by the rim surrounding their cup-shaped apothecia.

Interactions with Other Organisms

  • Snails (specifically "horn-rimmed snails") are sometimes found on lichens.

Further Information

  • WikiSpecies
  • MO (likely Missouri Botanical Garden)
  • ToL (Tree of Life Web Project)
  • BHL (Biodiversity Heritage Library)