Verrucaria ochrostoma, section through perithecium showing that the pigmented exciple widens markedly towards the apex, and the absence of an involucrellum.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith
