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dot lichen

Scientific Name: Arthonia terrigena

Family: Arthoniaceae

Category: Lichen

Growth: Lichenous

Duration:

Other Names:

       

Dot Lichen

The term "Dot Lichen" is a common name applied to lichens within the genera Arthonia or Micarea. The term "Dotted Lichens" can also refer to lichens in the genus Bacidia. This name reflects the characteristic small, dot-like appearance of many of these lichen species.

Taxonomy and Nomenclature

  • Group: Lichen
  • Family: Arthoniaceae (for some Dot Lichens) or Icmadophilaceae (for Pink Dot Lichen) or Micareaceae (for Erratic Dot Lichen)

Distribution and Habitat

  • Dot lichens are found in various environments.
  • The most abundant lichen in the New Orleans area is an example.
  • One type of lichen grows in small dots on rocks in Mt. Rainier National Park.
  • Dot Lichen on Palm tree bark (Arthonia rubella) can be found in Bahia Honda Key, Florida, USA.

Morphological Characteristics

  • Mycobilimbia pilularis ('Dot Lichen') is a crustose lichen featuring a grayish green thallus that lacks soredia or isidia. It also has yellowy brown biatorine, convex apothecia.
  • Pink Dot Lichen (Dibaeis absoluta) is characterized by pink apothecia borne on very short (ca. 1 mm) stalks.

Quirky Facts

  • The text mentions an article with the headline "I'm lichen it!" in the context of eating oak moss.

Examples of Dot Lichens

  • Birchbark Dot Lichen (Leptorhaphis epidermidis or Leptorhaphis atomaria)
  • Orange Dot Lichen (Protoblastenia rupestris)
  • Hidden Dot Lichen (Japewia tornoensis)
  • Pink Dot Lichen (Dibaeis absoluta)
  • City Dot Lichen (Scoliciosporum chlorococcum)
  • Erratic Dot Lichen (Micarea erratica)
  • Granite firedot lichen (Caloplaca arenaria)
  • Sulfur Firedot Lichen
  • Dispersed dot lichen (Arthonia dispersa)
  • Tuckerman&#39s dot lichen (Arthonia tuckermaniana)
  • Nitschke&#39s dot lichen (Micarea nitschkeana)
  • Dot lichen (Arthonia glebosa)
  • Dot Lichen on Palm tree bark (Arthonia rubella)
  • Scatter-dot Goldspeck Lichen
  • Frosty-rimmed Dot Lichen (Bacidia rubella)
  • Frosted -rimmed dot lichen (Caloplaca holocarpa)
  • Firedot lichen (Cliostomum griffithii)
  • Multicolored dot lichen

Further Information

  • Encyclopedia of Life
  • Catalogue of Life
  • ResearchGate (Conservation Assessment for Pink Dot Lichen)
  • Smithsonian Institution, National Museum of Natural History, Department of Botany
  • USDA