Mycena speirea (Fr.) Gillet syn. Marasmiellus camptophyllus (Berk.) Sing. syn. Omphalia tenuistipes Lange. Haarstielger Helmling Bark Bonnet. Cap 0.5–1.5cm across, convex, flattened or depressed at centre, often papillate, brown-grey, lined from margin to centre. Stem 30–60 x 1–15mm, pale brown or tinged yellowish-brown. Flesh very thin, whitish. Taste mild, smell none. Gills subdecurrent, whitish. Cheilocystidia thin-walled, hair-like, relatively undifferentiated. Spore print white. Spores pip-shaped, nonamyloid, 8–10 x 5–5um. Habitat on wood and twigs. Season autumn. Common. Not edible. Found In Europe.