Hi L. Z.,
this looks like immature Cheilymenia. I don't like dung of dog, cat and homo sapiens, and then still in the fridge ?
Greetings Peter.

Thanks Peter,
for your response. I also don't like many things, including those you mentioned and many more.
The sample will be in the fridge, to mature, and possibly to identify it.
Regards,
zaca

Hi Zaca,
in the fridge it could be, possibly, too coldly for the development, divide perhaps the collection.
Greetings Peter.

Good suggestion,
I will act accordingly.
Thanks again, Peter.
Regards,
zaca

After two more days in the fridge, I made another microscopic observation. Again no free spores were seen, but the spores are now MUCH more mature and bigger with
(14) 14.7 - 18.1 (19.6) × (8.1) 8.7 - 10.4 (11.3) µm
Q = (1.6) 1.7 - 1.87 (1.9) ; N = 34
Me = 16.8 × 9.5 µm ; Qe = 1.8
I used the following reference
Keys to Fungi on Dung: M.J. Richardson, Roy Watling, The British Mycological Society, 1997;
Tacking into account the lack of hairs at the margin (some rudimentary and hialine exist at the botoom of the ascocarp) and supposing that the colour of the ascocarps is "orange" (in fact, some orangish tones are present, though the dominant coloration is yellow) one gets
Cheilymenia granulata (as Coprobia granulata).
I have seen the webpage
http://guiahongosnavarra1garciabona.blogspot.pt/search/label/Cheilymenia%20granulata
and, though the photos illustrate mature specimens with flat apothecia, the micro features are very similar to mine.
So, is this the end of the story? or ..
Attached I upload a photo of the last microscopy.
Regards, zaca

A view of free ascospores in CB is required to see the spore ornamentation, this is the only way to try a determination.
Ch. granulata possesses wide paraphyses containing granules of a orange pigment, but there exists other Cheilymenia with rudimentary hairs.

Thanks, Nicolas, for your comment.
I upload some more information in the photos.
Best regards,
zaca

The first photo shows fine streaks on the spores and one could then head towards the genus Coprobia; But could you also measure the width of the paraphyses and their vertices?

Michel.

Voir peut-être du côté de Cheilymenia granulata var. sordida qui ne présente pas des sommets de paraphyses trè élargis
Gilbert

Merci, Michel.
I got the following dimension for the width of the paraphyses:
3.3 - 3.9 um at the base of the photo
5.4 - 6.8 um at the tips.
Best regards,
zaca

Thanks, Gilbert, for your comment.
I saw that the variety you mentioned (sordida) has paraphyses similar to this specimen.
Best regards,
zaca

Oui, je pense qu'il faut s'orienter vers sordida.

Ok aussi pour sordida; ça semble bien correspondre!

Michel.

Thank you all, Peter, Nicolas, Michel and Gilbert.
I think that, with your help, the identification of these specimens is concluded.
Let me add that the variety sordida also explains the coloration of these speciemns.
Best regards,
zaca