Description: The thallus of this rare species resembles M. prasina (described elsewhere) but differs in its numerous stalked, stick-like pycnidia which are brown coloured and thinly white-veiled. It occurs mainly in northern and western Ireland where old oak stumps are favoured.

Key Identification Features:

• Thallus green to grey-green with numerous stick-like pycnidia (to 1mm tall)
• Pycnidia brown, and thinly white-sheathed; on old decaying oak stumps.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Micarea hedlundii at iNaturalist World Species Observations database.