Omphalina luteovitellina (Pilat & Nannf.) M. Lange syn. Omphalina flava (Cke.) M. Lange. New syn. Lichenomphalia alpina Zitronengelber Nabling. Cap 7–15mm across, convex then flattened, margin wavy, bright yellow. Stem 10–20 x 2–4mm, concolorous or paler than cap. Flesh thin, concolorous. Gills strongly decurrent, thick and fleshy, few, pale yellowish. Spore print white. Spores elliptic, 6.5–9.5 x 3.5–4um. Habitat on mountains, usually over 2500 feet, especially on peat covered with algal scum. Season autumn. Rare. Not edible. Found In Europe.