LichenIreland
  • Peltigera hymenina (Ach.) Delise ex Duby
Click on the thumbnails to enlarge the images
Peltigera hymenina
© Robert Thompson
Peltigera hymenina
© Robert Thompson
Peltigera hymenina
© Mike Simms
Peltigera hymenina
Click on map to open large map in new window
(Map updated: 11 August 2009)
 

Click here to view an interactive map of the Northern Ireland dataset as currently collated by CEDaR.
The map is generated through the NBN Gateway using their Interactive Mapping Tool.

 

This is one of the most abundant ‘dog lichens’ of acid soils, sandy wastes, peaty ground and mossy tree stumps. It is also among the first lichens to colonise burnt soils. Like P. membranacea it is a large leafy species adhering like Velcro to the substratum. It is distinguished, however, by the shiny upper surface (never white-frosted) which is grey to brown when dry, changing to a vivid olive green when wet. On the underside are veins, but these are flattened and the rhizines simple. The red-brown discs, held erect on thumb-like lobes, are abundant.

Key characteristics

  • Glossy grey-brown upper surface, olive green when wet (never white-frosted)
  • Flattened veins on the underside with simple rhizines (attachment structures).

Original text submitted by Vince J. Giavarini

 Simms, M. J., (2016). Peltigera hymenina (Ach.) Delise ex Duby. [In] LichenIreland.
http://www.habitas.org.uk/lichenireland/species.asp?item=19328 Accessed on 2017-10-22.