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rimmed lichen

Scientific Name: Aspicilia limitata

Family: Hymeneliaceae

Category: Lichen

Growth: Lichenous

Duration:

Other Names:

       

Rimmed Lichen: A Botanical Overview

The term "rimmed lichen" refers to several species of lichen, often belonging to the genus Aspicilia. Lichens are fascinating composite organisms formed through a symbiotic relationship between a fungus and an algae or cyanobacteria.

Taxonomy and Nomenclature

  • Group: Lichen
  • Family: Hymeneliaceae
  • Genus: Aspicilia A. Massal.

Synonyms and related species include:

  • Aspicilia annulata (Lynge) J.W. Thomson – rimmed lichen
  • Aspicilia calcarea (L.) Mudd – calcareous rimmed lichen
  • Aspicilia reptans (synonyms: Lecanora reptans, Lecanora ryrkaipiae)
  • Aspicilia cinerea (L.) Krb. - Rimmed Lichen
  • Aspicilia contorta - Contorted rimmed lichen
  • Rhizoplaca - a genus within Lecanoraceae, members are commonly called rimmed navel lichens

Considerations for Pets

  • Wirework cloches, sometimes associated with lichen in the context of gardening, are used to protect plants from animals such as deer, rabbits, squirrels, and birds.

Distribution and Habitat

Rimmed lichens are found in various locations, including:

  • Ireland
  • Sagehen Creek Basin, CA
  • Valley of the Dry Frio River
  • Ochoco National Forest, atop Lookout Mountain
  • France (observed in May)

Morphological Characteristics

  • Some lichens, like Pannaria conoplea (Mealy-rimmed shingle lichen), have a jelly-like thallus when wet that shrinks and becomes strongly wrinkled when dry.

Interactions with Other Organisms

  • Lichens are symbiotic combinations of a fungus and either a green algae, a blue-green algae (cyanobacteria), or a combination of both.

Further Information

For more information, you can consult resources such as:

  • MO (likely Missouri Botanical Garden)
  • ToL (Tree of Life Web Project)
  • BHL (Biodiversity Heritage Library)
  • WikiSpecies
  • Catalogue of Life: 2012 Annual Checklist
  • Wikimedia Commons
  • PlantsLichenes, Korstmossen
  • Gettys Images
  • Nature in Stock