Irish lichens
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Order: Verrucariales Family: Verrucariaceae
Species: Verrucaria pinguicula Photos: On tombstone. Inishannon, Cork, SW Ireland. Identification uncertain, photo's probably of V. viridula Whitish to pale brown continuous or cracked thallus, often raised above surrounding rock and surrounded by dark line. Prominent black perithecia, the apex only slightly flattened, ostiole inconspicuous. Shallow pits sometimes left in the rock when the perithecia decay Occurs on hard limestone. Chemical reactions negative. Similar: Verrucaria dufourii |
Verrucaria. July 2009