It's dead, impossible to go further.
Sorry.
If you find ascomata not dead, please try to show hamathecium including asci,and  try to test peridium with KOH and acid lactic.
Alain

HI George !

Despite the pretty poor quality of the fotos, there would be one good opininion: Trichonectria rubrofaciens, Ascospore shape and measurements are the same. Wall should be K negative.

Trichonectria ascomata tend to collaps in dry state, but are fit again  when rehydrated with water.
I would wonder, if You could not find some integer ascomata. And not given in the fotos: there should be a corona of short, hyaline hairs/spikes concentreated near the ostiolum. 
Only one foto disturbs my suggestion: there is a Fusarium- type conidium- which would not fit to Trichonectria, as its anamorphic state is Acremonium-type.
Franz 

Of course I thought at T. rubefaciens (cf 2 typical spores) . Deliberately I did not want to say it to encourage to observe a beautiful ascoma with all the criteria present. The extreme drift is to propose: a macro photo + a spore and that's it, we have already seen on this forum. Here especially, as you said in a previous message, there may be an intraspecific variety that I also observe You are right, let's encourage Georges to show us that it is Trichonectria (sensu lato).

Concerning the hairs, one of character, I  recently saw an high variability (with specimens on Flavoparmelia, Parmelia or Pleurosticta. Indeed we need more observations.
The good new is that more and more mycologists are going to find lichenicolous fungi !
Have a nice day,
Alain

Hi George,
I replied earlier but it didn't go through. I agree with the theory that this is likely Trichonectria rubefaciens, based on the long skinny spores and superficial ascomata (I don't think the hairs/protuberances at the top are very evident in dry, collapsed perithecia). The curved pointy spore struck me as a Fusarium-like conidium rather than a germinating ascospore but I'm not sure and it could be there incidentally. You can get multiple fungi infecting one lichen thallus after all.

I mostly responded to suggest you check out the following reference in case you don't have it:
Rossman AY, Samuels GJ, Rogerson CT, Lowen R (1999) Genera of Bionectriaceae, Hypocreaceae and Nectriaceae (Hypocreales, Ascomycetes). Studies in Mycology 42. https://www.studiesinmycology.org/sim/Sim42/full%20text.htm 

Good luck,
Kendra

And by the way, have one of you observed it on Evernia prunastri ?