Crustose, placodioid and leprose lichens found in Ireland: A - C

Crustose lichens form thick or thin crusts that are firmly attached and cannot be removed without part of the substratum. Placodioid lichens are crustose but lobed at the margins and leprose lichens have a powdery appearance. Please click on the images to see details and larger photographs. Glossary (opens in new window). Lichens can be mapped at www.biology.ie.

Acarospora - Collemopsidium       Dibaeis - Lichenomphalia       Megalaria - Stigmidium       Tephromela - Verrucaria



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Crustose, Placodioid, Leprose    Squamulose    Foliose lichens    Cladonia's    Fruticose, Filamentous    Lichenicolous
A-C  D-L  M-S   T-Z A-F  G-O  P  Q-Z  fungi