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cup lichen

Scientific Name: Cladonia crispata var. crispata

Family: Cladoniaceae

Category: Lichen

Growth: Lichenous

Duration:

Other Names:

       

Pixie Cup Lichen (Cladonia spp.)

Cladonia, commonly known as cup lichen or pixie cup lichen, is a fascinating genus of moss-like lichens belonging to the family Cladoniaceae.

Considerations for Pets

  • Some Cladonia species have upright fruiting stalks, which might be tempting for some pets to play with or ingest.
  • Descriptions mention the lichen growing on decaying wood and in forest environments where contact with other organisms is more likely.

Considerations for Children

  • The "pixie cup" name and appearance, resembling miniature cups or golf tees, may make these lichens attractive to children.
  • They are found on the forest floor.
  • Cladonia species sometimes have small parts, such as corticate granules or farinose soredia, which may pose a choking hazard.
  • Historically, some Cladonia species have been boiled with milk or syrup to treat ailments, suggesting potential interactions if ingested.

Taxonomy and Nomenclature

  • Scientific Name: Cladonia
  • Common Names: Cup lichen, Pixie cup lichen
  • Family: Cladoniaceae

Distribution and Habitat

  • Cladonia species are found in various environments, including boreal forests, rock outcrops, and on the forest floor.
  • They often grow on moss, rotting stumps, logs, and at the base of trees.
  • Some species thrive in exposed subalpine sites with poor soils and fallen logs.
  • They have been observed along the Eagle Creek Trail in the Columbia River Gorge and in the Pocono Mountains.

Morphological Characteristics

  • Cladonia species are moss-like lichens characterized by their cup-shaped structures (podetia).
  • The podetia can resemble miniature golf tees or Shrek's ears.
  • Some species have funnel-shaped podetia that taper towards the base.
  • The exterior can be clothed with corticate granules and sometimes farinose soredia.
  • Some varieties, like Cladonia chlorophaea, have erect cup-like growths that are unbranched, round-toothed, and curled.

Ecological Role

  • Cladonia lichens are a primary food source for reindeer and caribou.

Quirky Facts

  • The appearance of the lichen has been compared to "Shrek's ears" or miniature golf tees.
  • Some people are in love with lichens and find them to be amazing little things.