This is a hotch potch of things, not all Menegazzia.
Of the Menegazzias:
I. fertile, 8-spored, pruinose young apo.
psoromic
echinocapric
pigments
[is] M. dielsii
II. sorediate,very torn; chem. consists of a colourless unknown cf. gyrophoric
[is] No Idea
G. Kantvilas, 10 . vi . 2020