Irish lichens
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Order: Lecanorales Family: Mycoblastaceae
Species: Mycoblastus caesius Photos: Glengarriff woods, Co. Cork, SW Ireland. Thin bluish-grey thallus, usually with a darker blue-grey prothallus. Numerous whitish to pale bluish-grey soralia with deeper blue flecks, discrete but can become confluent. Apothecia and pycnidia are unknown. Chemical reactions negative, UV+ white. Found on rough or smooth acidic bark in old, established woodlands, occasional on shaded siliceous rocks. Similar: Buellia griseovirens |
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Mycoblastus caesius March 2010