Moss Oysterling

Moss Oysterling Arrhenia acerosa (Fr.) Kühner syn. Pleurotus acerosus (Fr.) Quél. (illustrated 60% life size) Cap 1–3cm across, somewhat kidney-shaped, often lobed; dark grey-brown when moist, drying pale grey; margin downy, white. Stem 5–10×5–10mm, lateral; white. Flesh pallid; thin. Gills adnate to decurrent; greyish. Spores 7–8×3–4¼, pip-shaped. Spore print white. Habitat on rotting wood or rich humus on the ground amongst moss; late summer to early winter. Occasional. Unknown edibility.