Buellia is a genus of mostly lichen-forming fungi in the family Caliciaceae. The fungi are usually part of a crustose lichen.[2] In this case, the lichen species is given the same name as the fungus. But members may also grow as parasites on lichens (lichenicolous).[2] The algae in the lichen (the photobiont partner) is always a member of the genus Trebouxia.[2]
Lichens in the genus are commonly called disc lichens,[3] or button lichens.[4]: 229 The genus has a widespread distribution and contains about 450 species.[5]
Genetic studies indicate that the genus Amandinea and Buellia may be the same,[6] although this is not widely accepted.[7]
Photograph of a cross section of an apothecium from B. disciformis taken through a compound microscope (x400), showing numerous brown, 1-septate spores per ascus.
Photograph of brown, 1-septate (2-celled) spores from B. disciformis taken through a compound microscope, x1000. (spores measure 27 x 11 micrometres)
Buellia is a genus of mostly lichen-forming 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 (the photobiont partner) is always a member of the genus Trebouxia.
Lichens in the genus are commonly called disc lichens, or button lichens.: 229 The genus has a widespread distribution and contains about 450 species.
Genetic studies indicate that the genus Amandinea and Buellia may be the same, although this is not widely accepted.
