Irish lichens
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Order: Lecanorales Family: Lecanoraceae
Species: Lecidella asema Photos: On coastal rock. Snave, Co. Cork, SW Ireland. Very variable. Thickish, coarsely-granular thallus, pale fawn-ochre, becoming +/- greyish in shade. Frequent black apothecia, flat becoming convex, blackish margins excluded with age. Coastal on siliceous rocks and sometimes found on decaying Thrift. Common on exposed shores, rare on upland rocks. Reactions variable, thallus: K +/- yellow, C+ orange, P- Two colour morphs are sometimes distinguished: var. asema, greenish and var. elaeochromoides, pale ochre. |
Lecidella asema. September 2009