• Opegrapha multipuncta Coppins & P.James
Opegrapha multipuncta
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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 characteristics

  • 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

 Simms, M. J., (2016). Opegrapha multipuncta Coppins & P.James. [In] LichenIreland. Accessed on 2018-07-19.