Scutellinia umbrarum
Description
Scutellinia umbrorum is a species of apothecial fungus belonging to the family Pyronemataceae. This is a common European species, forming clusters of orange discs up to 1.5 cm in diameter on soil or rotting wood in summer and autumn. It is very similar to congeners such as Scutellinia olivascens and can only be reliably identified by microscopic features. S. umbrorum is inedible.
This fungus is rather similar to Scutellinia scutellata, both macroscopically and microscopically. It is distinguished by the orange color slightly larger spores, and shorter marginal hairs.
Peziza umbrosa Fr. (1822) is a synonym.
Mushroom Identification
Fruiting Body
Disk-shaped, surface smooth, orange, margin decorated with brown hairs, to about 15 mm across
Flesh
Firm, orange
Season
Spring to autumn
Habitat
On damp rotten wood
Microscopic Features
Spores ellipsoidal, warty/roughened, with many oil drops (19-21) x (11-13) µm2. Paraphyses septate, cylindrical, tips slightly expanded. Marginal hairs septate, tips pointed, sometimes branched at the base, to about 500 µm long.
Photo sources:
Photo 1 - Author: Sava Krstic (sava) (CC BY-SA 3.0)