Polycauliona verruculifera 1

Licence: 
Creative Commons Licence
Description: 

Polycauliona (Caloplaca) verruculifera, detail of thallus on basalt rock, Isle of Muck, Scotland.

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