LichenIreland
  • Opegrapha sorediifera P.James
Opegrapha sorediifera
Click on map to open large map in new window
(Map updated: 11 August 2009)

This small, crustose epiphyte with a thin, dark brown thallus is commonly encountered sterile, that is, without its slit-like discs. It is recognised by its abundant sprinkling of small, beige to orange-yellow, powdery soralia. It is relatively common on the deciduous bark of trees such as sallow, especially in marshy or swamp-like habitats.

Key characteristics

  • It may be confused with the less common Opegrapha multipuncta that has yellower, often confluent soralia that react C-
  • Opegrapha sorediifera is C+ red, and the soralia are UV+ red. Opegrapha corticola is also similar, but has larger, duller beige soralia that are C-.

Original text submitted by Simon Davey

 
 Simms, M. J., (2016). Opegrapha sorediifera P.James. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=19228 Accessed on 2018-10-18.