Verrucaria squam3929d.jpg

Creative Commons Licence

Verrucaria squamulosa, growing on concrete, VC 24, Buckinghamshire. When well-developed as in this material the thallus is rather distinctive with overlapping squamule-like units.

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