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11-03-2026 17:36

Michel Hairaud Michel Hairaud

Bonjour, Je cherche des indices  pour cette réc

12-03-2026 19:44

Enrique Rubio Enrique Rubio

Hi to everybody.Can you give me any suggestions ab

08-03-2026 14:05

Thierry Blondelle Thierry Blondelle

Bonjour à tous,Sur 3 récoltes supposées de H. l

12-03-2026 15:45

Åge Oterhals

Dear forum,I found this small discomycete on a ver

12-03-2026 16:17

Sylvie Le Goff

Bonjour à tousRécolté dans le 22 en France (ré

12-03-2026 14:37

David Wasilewski

These small ascomycota (1-3 mm) ere observed growi

11-03-2026 16:48

Bruno Coué Bruno Coué

Bonjour, je serais heureux d'avoir votre avis sur

09-02-2026 22:01

ruiz Jose

Hola, me paso esta colección en madera de pino, t

11-03-2026 14:14

Gernot Friebes

Hi,I would like to share a collection of Scopinell

15-09-2020 17:27

Andgelo Mombert Andgelo Mombert

Bonjour, Sur branche morte décortiquée de Berbe

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Ascolichen on Blechnum?
Enrique Rubio, 03-09-2025 12:44
Enrique RubioHi to somebody.

I would like to know your opinion on these apothecium-like, gregarious, whitish, pubescent, briefly stipitate fungi, up to 200 microns in height and 150-160 microns in width, which were growing on Blechnum spicant fronds on a quartzite wall that was oozing water.
The asci are bitunicate and the whole structure appears dextrinoid, as only the medulla of the fruiting body appears to turn slightly blue in IKI after KOH-pretreatment. Peculiar paraphyses with a highly refractive content can be seen, and perhaps also a pilosity formed by similar elements, although I have not been able to make a vertical section of the ascoma that would give me a good idea of the whole. Nor have I been able to clearly observe a possible thallus at the base of the stipe base.
Could this be an ascolychen?
Thank you very much for your ideas.

 

  • message #83421
  • message #83421
  • message #83421
Hans-Otto Baral, 03-09-2025 16:31
Hans-Otto Baral
Re : Ascolichen on Blechnum?
This must be Vezdaea stipitata (Vezdaeaceae). You had it already some years ago (2022?) on a ?liverwort.

The red ascus reaction is hemiamyloid, not dextrinoid (in MLZ without KOH you would get nothing).

I was unaware of such prominent VBs in Lecanorales, staining deep red-brown in IKI. Very probably the family is misplaced there. Available DNA does not give a clear hint on their relationship. Syllabus gives it as Vezdaeales in Xylonomycetes while in the Outline 2024 it is Vezdaeales in Pezizomycetes incertae sedis.
Enrique Rubio, 04-09-2025 12:02
Enrique Rubio
Re : Ascolichen on Blechnum?
Hi Zotto.
You're right. It's the same one you identified for me years ago, although this time the blue reaction of the interascale elements is much less intense.
Thank you again.
  • message #83424
Franz Berger, 16-09-2025 11:20
Franz Berger
Re : Ascolichen on Blechnum?
More text can be found in Poelt & Vezda 1977: Bestimmungsschlüssel europäischer Flechten. - ergänzungsheft 1 . Cramer Vaduz.
With remarks like: "Paraphysen spärlich bis schwierig zu erkennen" - which is in contrast to the images.
and: Asci amyloid, mit jung deutlich amyloidem Tholus. Sporen 1-septate.

Another remark: genus certaily contains more species.

Regards: Franz