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Buellia

  • enlarged photo
  • Image author: Ulrich Kirschbaum ©
  • Buellia disciformis, example species. On freestanding deciduous trees. Crust with apothecia; thallus whitish, areolate; apothecia black, disc flat (or +- convex), margin thick. Thallus K+ yellow, C-, P+ yellow.
  • Switzerland (Alps).
  • Original image
  • Website: Lichen images