Species: Polychidium muscicola
Photos: Among moss on upland rock. Ballingeary, Cork, SW Ireland.
Identification confirmed by Mike Simms
Much-branched thallus of tiny black or brownish strands that form compact cushions or spread over the sub-strate. Apothecia 2mm diameter with red-brown discs.
Occurs among moss on damp, siliceous rocks and at base of trees.
Chemical reactions negative.
Similar: P. dendriscum, rare, in old woodlands in SW Ireland
Polychidium muscicola growing among moss on acidic rock. Ballingeary area, Co.Cork. February 2009