Description: This rare Umbilicaria presumed to have been collected during the nineteenth century from Tonelagee in the Wicklow Mountains has a single lobed thallus with a brown, occasionally grey, upper surface and a dark slightly roughened underside with no pink pigmentation. The black discs occur mostly away from the centre of the thallus and have a thick rim and a prominent central pillar of sterile tissue. It is known to favour water seepage cracks. It should be avidly searched for in the Wicklow Mountains.

Key Identification Features:

• Single lobed brown to grey thallus
• Discs near the edge of the thallus, black with a central pillar of tissue.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Umbilicaria spodochroa at iNaturalist World Species Observations database.