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Buellia erubescens Buellia erubescens on Red Maple (Acer rubrum) bark near the tree's base. A synonym is Buellia stillingiana but this is no longer accepted. Buellia erubescens,Buellia stillingiana,Common button lichen,Geotagged,United States,Winter,crustose lichen,lichen,red maple Click/tap to enlarge PromotedSpecies introCountry intro

Buellia erubescens

Buellia erubescens on Red Maple (Acer rubrum) bark near the tree's base. A synonym is Buellia stillingiana but this is no longer accepted.

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Buellia erubescens is a crustose lichen with black apothecia that grows on bark and sometimes wood.

Buellia is a genus of fungi in the family Caliciaceae. The fungi are usually part of a crustose lichen. In this case, the lichen species is given the same name as the fungus. But members may also grow as parasites on lichens (lichenicolous). The algae in the lichen is always a member of the genus Trebouxia. Lichens in the genus are commonly called disc lichens, or button lichens. The genus.. more

Similar species: Teloschistales
Species identified by Gary B
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By Gary B

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Uploaded Apr 22, 2019. Captured Mar 7, 2015 14:52 in Skelton Township, MN 55707, USA.
  • Canon EOS DIGITAL REBEL
  • f/8.0
  • 1/30s
  • ISO100
  • 100mm