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Order: Verrucariales
Family: Verrucariaceae
Genus: Dermatocarpon intestiforme Photos: On coastal rock. Zetland, Co. Cork, SW Ireland. Repeatedly lobed, crowded, overlapping thallus with numerous holdfasts. Sheaves of lobes become +/- conical. Upper surface of lobes grey to brown, +/- pruinose, lower surface smooth, light to dark brown. Found in western Ireland on damp, siliceous, often slightly basic, flushed rocks, lake shores and in the upper part of inundated river zones. Chemical reactions negative. Similar: Dermatocarpon miniatum |
Dermatocarpon intestiforme on coastal rock, Zetland, Co. Cork. June 2009