Umbilicaria americana

Umbilicaria americana
U. americana growing on rock faces
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Family: Umbilicariaceae
Genus: Umbilicaria
Species: U. americana
Binomial name
Umbilicaria americana

Umbilicaria americana, commonly known as Frosted Rock Tripe, is a foliose lichen of rock faces.

Description

U. americana has been described as looking like "grayish-white potato chips."[1] The upper surface is gray with the appearance of white dusting. The lower surface is black. The lobes are 2 to 7 cm in diameter.[2]

References

  1. "Rocky Mountain National Park- Umbilicaria americana (U.S. National Park Service)." Jul 14, 2007.http://www.nps.gov/romo/umbilicaria_americana.htm (accessed Dec 17, 2008).
  2. Walewski, Joe (2007). Lichens of the North Woods. City: Kollath-Stensaas. ISBN 0-9792006-0-1.


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