Apart from the initial perplexity, I conclude that there were two mixed lichens: the one with yellowish thallus, a Fulgensia, and the other with grayish thallus, the subject of this obervation. Both have redish apothecia with whitish margin, the former bigger and slightly convex and the latter flat ou even depressed. After looking for information, I came to the conclusion that probably the grayish one should belong to the genus Haematomma or a close genera. Going further, I found that the genus Ophiofarma has a species, O. ventosa_, with these characteristics (_Haematomma ventosa is a synonym). According lastdragon there are two forms: f. ventosa with a cream to yellow-grey thallus, usually found in rock (see some very good photos at Stridvall) and f. subfestiva with a pale to dark grey grey thallus, that is considered saxicolous. I think that my specimens are of f. subfestiva. The chemical reactions were done in simultaneous for the two lichen on the photos and the results could be influenced by the K purple reaction of Fulgensia. I hope to confirm this identification with microscopic data as soon as possible.