Bonjour,
On a trouvé cet asco sur un bûche dans un ruisseau, Derbyshire, Nord de l'Angleterre, le Juin 23. Il était avec Bulbillomyces farinosus.

We found this asco on a log in a stream, Derbyshire, Northern England, on June 23. It was with Bulbillomyces farinosus. There were 2 sessile fruitbodies, the larger was 3 mm diameter. The texture was gelatinous. The colour was olive-brown. Spores measured were 19-20 x 13-15. Asci were operculate, typically 275 x 20, uniseriate, 8-spored. In iodine reagents they became pale blue or red-brown.
Paraphyses were septate with ends swollen to just over 10 um. In water they showed pale brown contents. In iodine reagents they turned deep red-brown at the ends,
I was unable to find any "hairs", but a squash of the disc edge showed a variety of cells, including round cells about 40 diameter. Because of the gelatinous texture I was unable to make a cross-section of the ascocarp.
From Fungi of Switzerland Vol. 1 I named this as perhaps Pachyella babingtoni, which has been found at least 7 times before in our region. It is however, more olive than red-brown in colour.
Cordialement,
Steve