Description: In County Kerry, this is a rare crustose lichen of Brandon Mountain’s high acid ridges. The thallus is composed of scattered, minutely lobed, brown-grey areoles resting on a black under layer or prothallus which make it doubly conspicuous to the searcher. Immersed, brown-black discs (0.2–0.7mm diam.) are common. All reactions are negative. Anyone with a mind to work these hills will find it a companion to other uncommon taxa such as Aspicilia epiglypta and Catillaria contristans.

Key Identification Features:

• Crustose thallus of lobed, brown-grey areoles above a black prothallus; discs brown to black, immersed
• The high ridges of Brandon Mountain – you will have to be on hands and knees to find it.

Original text submitted by Vince J. Giavarini

Distribution Map from NBN: Miriquidica complanata f. complanata at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Miriquidica complanata f. complanata at iNaturalist World Species Observations database.