Pertusaria xanthoisidiata

Species of lichen

Pertusaria xanthoisidiata is a species of corticolous (bark-dwelling), crustose lichen in the family Pertusariaceae. Found on the Galápagos Islands, it was formally described as a new species in 2015 by Alan W. Archer, Frank Bungartz, and John Elix. The type specimen was collected on Pinta Island, where it was growing on an exposed trunk of Opuntia galapageia. The species epithet refers to the yellow-coloured isidia.

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