Arthopyren sali4448d.jpg

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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