Bonjour à tous,

Few days ago I found this Coniochaeta specie growing on decorticated Quercus ilex branch, at 800 m.s.m near a flooded area.

Description:
Perithecia up to 450 x 350 µm, sessile and grouped; without stroma and with black papillae but very small; mostly covered with yellow bloom. Setae 30-65 x 5-7 µm in all the acomata.
Asci with 8 spores, uniseriate, 100-110 x 8-12 µm. Redder apex with IKI at high concentrations and at low concentrations and with pretreatment with KOH, without reaction. I think they have croziers (in the collage you can see a picture with the base of asci septum).
Spores ellipsoid, Me: 16.8 x 8.6 mm; Qe: 1.9, size quite variable, with thickened wall and in some cases with irregular margin, they have a longitudinal slot. I have not seen a patent capsule.

Following a Asgari et al., 2007 and Czech et al., 1988 I do not get clearly any species. Maybe C. ligniaria is closest species but usually presents the wider spores. C. scatigena presents ascomata with papilla and somewhat wider spores.

Thank you very much,
Best regards!

Borja