Description: This little crustose epiphyte with a red-brown thallus grows best on the stems of small, leggy shrubs, in wet, marshy places. The tiny, tight mosaics of orange, fleck-like (or concave) soralia are a key characteristic placing it close to taxa such as Opegrapha sorediifera and O. gyrocarpa (both described elsewhere) in the lookalike stakes. O. sorediifera has its soralia paler and C+ red whereas in O. gyrocarpa a chocolate thallus predominates, the soralia are larger and also C+ red. Discs unknown. All spot tests are negative in O. multipuncta. Currently, northern half of Ireland only.

Key Identification Features:

• Tiny, fleck-like soralia in tightly organised patches on stems of small shrubs
• In boggy or marshy sites both near the coast and inland, sometimes on rock; thallus C-.

Original text submitted by Vince J. Giavarini

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

iNaturalist: Porina multipuncta at iNaturalist World Species Observations database.