Family: Tremellaceae Species: Tremella phaeographidis Lichenicolous fungus, photographs on Phaeographis smithii Photos: Dromore, Co. Cork, SW Ireland. A basidiomycete forming pale to dark brown (often reddish brown), flattened or slightly convex and waxy-gelatinous basidiomata (fruiting bodies) on host thallus. Mature basidia 16-24 x 8-12 µm with one transverse or oblique (rarely transverse) septum, and the lower cell with an attenuated, often stalk-like base that is longer than the upper cell, 16-24 x 8-12 µm. The basidiospores are ellipsoid to subspherical, 5.5-7.5 x 5-6 µm. Micrographs below. Lichenicolous on the thallii of Phaeographis species Similar: Tremella occultixanthoriae occurs on Xanthoria parietina. Tremella pertusariae forms dark galls on Pertusaria hymenea

Micrographs



Tremella phaeographidis. August 2024