Rhizocarpon petraeum IMG_3724

Licence: 
Creative Commons Licence
Description: 

Rhizocarpon petraeum, thallus on a siliceous garden wall, VC44 Carmarthen.

Taxonomic name: 
Rhizocarpon petraeum (All Fungi)
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith