Description: In old woodlands and along wooded ravines this epiphyte occurs around the mossy bases of mature, deciduous trees such as ash and oak. It has a generally green, granular-mealy thallus with pale, orange-pink to reddish-brownish discs (0.4-1.2mm diam.) that become increasingly ‘boxing glove’ globose with age often occurring in tight, knobbly clusters. All reactions negative. North-west and west Ireland.

Key Identification Features:

• On the mossy trunks of mature ash and oak trees for example, along sheltered valley bottoms
• Thallus of mealy green granules; discs orange-pink to pale brown, becoming spherical.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Mycobilimbia sphaeroides at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Mycobilimbia sphaeroides at iNaturalist World Species Observations database.