LichenIreland
  • Chaenotheca ferruginea (Turner ex Ach.) Mig.
Chaenotheca ferruginea
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The granular thallus of this ‘pin-head lichen’ forms yellow to rusty-red patches on trees which is unmistakable once seen. The colonies can spread like a rash on dry, acid-barked trees and de-barked wood often close to areas with some residual air pollution. The stalked discs (not always present) carry a pale brown spore mass often with a hint of yellow. North and east Ireland.

Key characteristics

  • ‘Pin-head lichen’ conspicuous as yellow to rusty-red patches on dry, acid-barked trees
  • Often on trees in or near air pollution recovery zones close to towns.

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Chaenotheca ferruginea (Turner ex Ach.) Mig.. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=15548 Accessed on 2017-12-16.