Family: Incertae sedis Species: Lichenodiplis poeltii Lichenicolous, underneath a lobe of Xanthoria parietina Kilcolman, Co. Limerick, Ireland. New to Britain and Ireland. Photographs and micrographs identified by Valerii Darmostuk, confirmed by Brian Coppins Black pycnidia (immersed but becoming erumpent) form on blackish-brown gall-like structures on the host thallus. Conidiophores absent, conidia 1-septate, hyaline becoming brownish, (8-)9-12 x 2.5-3 µm. Micrographs showing conidia below. Occurs on the thallii of Xanthoria parietina. At present (2024) only otherwise known from Australia Similar: Tremella occultixanthoriae, a lichenicolous basidiomycete forming pinkish galls under Xanthoria lobes, conidia simple

Micrographs







Lichenodiplis poeltii. August 2024