Nectria peziza (Tode ex Fr.) Fr. Fruit body 0.2–0.4mm across, globose when fresh but collapsing into a cup-like shape when dry (not shown), bright yellow. Asci 75–90 x 8–10µ. Spores 12–15 x 5–7µ. Habitat on rotting polypores and rotten wood, shown here on old Polyporus squamosus. Season all year. Frequent. Not edible. Found In Europe.