Genus: Cetraria aculeata
Photos: Among moss on upland rock. Ballingeary, Cork, SW Ireland.
Identified by Mike Simms
Loose clumps or interwoven mats of glossy chestnut to blackish-brown +/- flattened branches ending in blunt spikes. Elongated pseudocyphellae near axils. Apothecia rare.
Heaths, acid sand dunes, sometimes amongst mosses. Mainly occurs in upland habitats, most frequent in N of Ireland.
Chemical reactions negative.
Cetraria aculeata. Ballingeary, County Cork. February 2009