Arthopyrenia salicis, section through perithecium and adjacent thallus, showing the presence of Trentepohlia cells in this specimen (towards left of image).
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith
