Basidiomycota. Filobasidiaceae Zyzygomyces physciacearum # (Heterocephalacria physciacearum, Syzygospora physciacearum) Lichenicolous fungus. Photographs on Physcia tenella. Widespread on thallii and apothecia of Physcia species, particularly Physcia tenella and P. adscendens. Irregular whitish, pinkish, brown or black fruit bodies develop on the thallus or apothecial margins of the host. Basidia are (2-)3-4 spored, basidiospores ellipsoid to oval, 7.5-11 x 3.5-6.5 µm. Similar: Zyzygomyces aipoliae is only found on Physcia aipolia and Zyzygomyces physconiae occurs on Physconia. Z. bachmannii forms galls on Cladonia species. Tremella christiansenii. Not yet known in Britain or Ireland but recorded elsewhere on Physcia stellaris and P. tenella. The basidia are +/- globose

Zyzygomyces physciacearum (Syzygospora physciacearum)
East Stoke, Dorset. December 2015