Omphalina ericetorum (Fr.) Lange Gefalteter Nabling Heath Navel. Cap I-2.5cm across, convex then soon flattened to funnel-shaped; from pale buff to deep brown or vinaceous; glabrous, strongly striate. Gills decurrent, widely spaced; pale yellowish. Stem 10-30 X I-3mm; pallid to yellow-brown; finely pubescent. Spores ovoid, 7-9 x 4-6µ. Deposit white to pale yellow. Basidia can be 1-, 2-, 3-, or 4-spored. Habitat attached to the lichen Botrydina vulgaris, which is the vegetative stage, the mushroom being the reproductive stage, the joint organism forming a basidio-lichen. Found widely distributed throughout northern North America across to the Pacific Northwest and up into the Arctic Circle. Season all year. Edibility not known -avoid.