Hi to everybody This 15 mm wide and 10 mm high basidiome was growing solitary on riparian indeterminate hardwood in a Spanish region with an oromediterranean climate. The hyphal system appears monomitic with thin to somewhat thick-walled hyphae and broad fibulae that may be open. KOH negative. I haven seen any skeletal or connective hyphae, so I was thinking in a Spongipellis species, but the spores seem too cylindrical. Do you have any idea that could help me?