Verrucaria squam3929c.jpg

Creative Commons Licence

Verrucaria squamulosa, section showing the involucrellum (towards the right) spreading away from the pigmented exciple, the space between filled with coarse paraplectenchyma.

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