Abrothallaceae Lichenoconium usneae # Growth type lichenicolous Photographs on Ramalina fastigiata and Physcia tenella Parasitic on foliose and fruticose lichens including Cladonia, Parmelia, Physcia, Ramalina and Usnea species Black pycnidia are +/- subglobose, (40-)50-80(-110) µm in diameter and immersed or superficial. Conidia brown to dark brown, simple, +/- globose and not distinctly truncate at the base, (2.5-)3-4(-5) µm. Micrographs showing conidia below. Similar: Lichenoconium erodens. Smaller pycnidia, different hosts

Micrographs



Lichenoconium usneae
Photographs: Broadstone, Dorset. July 2023