Verrucaria squam3929a.jpg

Creative Commons Licence

Verrucaria squamulosa, section through thallus showing the dark basal layer, the hyphae with brown (rather than black) walls close to the edge of the thallus.

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