LichenIreland
  • Lepraria incana s.lat. [22]
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Lepraria incana s.lat.
© Robert Thompson
Lepraria incana s.lat.
© Robert Thompson
Lepraria incana s.lat.
© Robert Thompson
Lepraria incana s.lat.
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(Map updated: 11 August 2009)
Lepraria incana s.lat.
© Robert Thompson
 

Grey to green-grey ‘powder lichen’ of damp, acid habitats and shaded niches such as hollows in tree bark, holes in earth banks, trees in coniferous plantations and rock underhangs. Often appears blue-green to the naked eye. Scratching with a fingernail can remove the scurfy granules. There should be no suggestion of a cotton-white layer within (medulla). In deep shade it can form a thick, powdery crust. It never produces fruiting discs.

Key characteristics

  • Powdery crust with blue-green appearance lacking a white, fluffy, cotton-wool-like underlayer
  • On scratching, the powdery granules will detach instantly.

Original text submitted by Vince J. Giavarini

 
 Simms, M. J., (2016). Lepraria incana s.lat. [22]. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=432806 Accessed on 2018-09-21.