LichenIreland
  • Phaeophyscia orbicularis (Neck.) Moberg
Click on the thumbnails to enlarge the images
Phaeophyscia orbicularis
© Mike Simms
Phaeophyscia orbicularis
© Mike Simms
Phaeophyscia orbicularis
© Mike Simms
Phaeophyscia orbicularis
Click on map to open large map in new window
(Map updated: 11 August 2009)
Phaeophyscia orbicularis
© Mike Simms
 

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.

 

If one looks closely at the tiny leafy lichens growing on nutrient-enriched surfaces, such as the lower branches of an ash or a sycamore or along a line of concrete fence tops, then it is likely that the pale brown rosettes of this species will be among them. The circular thallus, the spreading lobes that expand and divide near the tip where attachment organs (rhizinae) may protrude, and mass of globose soralia, speckled blue, green or black, these are the most obvious distinguishing features.

Key characteristics

  • Grey to brown circular thalli form spreading rings on nutrient-rich surfaces
  • The lobes expand towards their tips revealing root-like rhizinae. The upper surface meanwhile, is densely scattered with green speckled soralia.

Original text submitted by Vince J. Giavarini