Irish lichens
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Order: Agyriales Family: Schaereriaceae
Species: Schaereria fuscocinerea Photos: On coastal rock. Seal Harbour, Co. Cork, SW Ireland. Identification very uncertain: Photographs are probably of Rhizocarpon richardii Smooth thallus with grey-brownish to dark brown, sharp-angled areoles surrounded by black prothallus. Thallus sometimes +/- blackish in exposed locations. Small black apothecia are initially immersed, concave and spot-like, becoming convex. Mainly western Ireland on exposed hard siliceous rocks. K-, C+ pink, KC-, P- UV-. The C+ pink reaction can be variable. |
September 2009