Usnea hirta, minor branch of thallus showing copious production of spinule-like isidia. Collection from bark of Pinus sylvestris, Easterness, Scotland.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith
