Cecidonia is a genus of lichenicolous (lichen-dwelling) fungi in the family Lecideaceae. It has two species. These fungi create distinctive white, warty swellings or galls up to 6 mm across on the surface of their rock-dwelling lichen hosts, which then develop small black fruiting bodies. The genus name refers to this gall-forming behaviour, and the two species primarily attack crustose lichens that grow on siliceous rocks.
GENUS
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Cecidonia is a genus of lichenicolous (lichen-dwelling) fungi in the family Lecideaceae. It has two species. These fungi create distinctive white, warty swellings or galls up to 6 mm across on the surface of their rock-dwelling lichen hosts, which then develop small black fruiting bodies. The genus name refers to this gall-forming behaviour, and the two species primarily attack crustose lichens that grow on siliceous rocks.
==Taxonomy==
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