Order: Lecanorales Family: Micareaceae
Species: Micarea peliocarpa
Photos: Co. Cork, SW Ireland.
Specimens identified by John Douglass
Very variable. Thallus immersed or of small, grey or greenish-grey, convex or sub-globose granules. Apothecia variable, white, blue-grey or black. When on wood or bark pycnidia can be frequent. Spores (1-)3(-5 septate, (11-)15-23 x 3-5(-6) Ám.
Microscope photograph below.
Thallus, apothecia and pycnidia: K-, C +/- red, P-
Found on acidic substrates, rocks, bark and heather stems. Usually occurs in upland areas, to 500m.
Similar: Micarea lignaria