Description: This ‘pin-head’ lichen is easily identified on account of its well-developed thallus of bright, yellow granules. The lower part of the head of the ‘pin’ also has a conspicuous dusting of yellow pruina. Shaded recesses; acid-barked deciduous trees; more usual on conifers. In Ireland, records are scattered around the north and west.

Key Identification Features:

• The only Chaenotheca with a granular bright, green-yellow thallus
• Thallus K-, Pd-.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Chaenotheca chrysocephala at iNaturalist World Species Observations database.