Lichen on barnacles

Lichen on barnacles

Observation - Lichen on barnacles - UK and Ireland. Description: Round black perithecia, many almost sitting on the barnacle surfaces. No noticeable thallus. Possibly Collemopsidium sublitorale.

Round black perithecia, many almost sitting on the barnacle surfaces. No noticeable thallus. Possibly Collemopsidium sublitorale.