Would be very happy to receive your opinion on this. I examined the fruiting bodies of this fungus thinking it was a lichen as there seems to be a greyish white thallus present. It was growing on the bark of an old, coastal carob tree in the Mediterranean. The black fruiting bodies were between 0.1 - 0.3mm diameter. A TS revealed a hymenium of about 110um height and a dark hypothecium. The 3- septate spores were dark reddish-brown, 23-32 x 9 -16um. Too long and wide to fit any Diplotomma/Buellia Mediterranean lichen species I know of. Would this be a non-lichenised fungus? Many thanks in advance.